Today's Message Index:
----------------------
1. 12:23 AM - Re: Re: Starter sequence M14 (Bill Lang)
2. 05:22 AM - Re: Re: Starter sequence M14 (cjpilot710@aol.com)
3. 05:42 AM - Re: Re: Starter sequence M14 (A. Dennis Savarese)
4. 06:47 AM - Re: Re: Starter sequence M14 (Scott Dierolf)
5. 08:03 AM - Tire Question (skidmk)
6. 09:25 AM - Re: Tire Question (Terry Calloway)
7. 12:41 PM - Re: Tire Question (Roger Kemp M.D.)
8. 01:20 PM - Re: Re: Starter sequence M14 (Yak Pilot)
9. 01:47 PM - Re: Tire Question (A. Dennis Savarese)
10. 02:22 PM - Re: Tire Question (Warren Hill)
11. 03:18 PM - Re: Re: Starter sequence M14 (William Scully)
12. 06:00 PM - Re: WhirlWind Propellers New composite blades (Chris Wise)
13. 07:50 PM - Re: YAK starting problems (Chris Wise)
14. 08:10 PM - AIR START FIXTURE (Joe Howse)
15. 08:45 PM - Re: AIR START FIXTURE (Noplugs)
16. 11:10 PM - M14P Magneto (flyayak)
Message 1
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| Subject: | RE: Starter sequence M14 |
SITREP
12 Degrees off no 4 pot all set. Zero rotation=2C just a loud POP of air as
the starter is pushed. Pull started and ran it for half hour. Expecting so
me rotation with starter=2C but still the POP of air not turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely
effecting the prop movement on start.
8 degrees seemed the best=2C so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Cess
nock and do an overnight stocktake for me
Any One Bueller?
Anyone?
Bill
> Subject: RE: Yak-List: RE: Starter sequence M14
> Date: Mon=2C 12 Jul 2010 11:13:19 -0400
> From: mark.bitterlich@navy.mil
> To: yak-list@matronics.com
>
t=2C MALS-14 64E" <mark.bitterlich@navy.mil>
>
> That info was pulled from a direct translation of the M-14 manual written
the folks who made the engine.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@m
atronics.com] On Behalf Of Bill Lang
> Sent: Saturday=2C July 10=2C 2010 7:17 PM
> To: Yak List=3B Tim Windsor
> Subject: RE: Yak-List: RE: Starter sequence M14
>
> Mark
>
> No worries. Thank you for your efforts =2C and we will perservere with th
is thing. Nothing cannot be fixed=2C eventually. Your information is indeed
different to what we had been told=2C so we will concentrate on around 12
degrees.
>
> Cheers
>
> Bill
>
>
> ________________________________
>
> Date: Sat=2C 10 Jul 2010 13:39:26 -0700
> From: yakplt@yahoo.com
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: yak-list@matronics.com
>
>
> Again Bill=2C sorry for assuming you were in the United States. Personall
y=2C I have to tell you that I enjoyed Australia more than any place I have
ever been in my life=2C and that includes a whole lot of places. I was up
in Nowra and made friends with a lot of wonderful folks=2C so the last thin
g I want to do is be a wise-ass to a person who lives in a place I'd like t
o come back and visit!
>
> The air distributor is set very much like when timing the mags. You want
to set the engine to 12 degrees after top dead center referencing the maste
r cylinder=2C which is of course cylinder number 4. Again=2C set the engine
to 12 degrees AFTER top dead center on cylinder number four!
>
> Now adjust the the air distributor so that the slide valve will open the
supply of air to the number four cylinder by 1 mm.
>
> That's the best I can do to help you. I hope it is enough.
>
> Mark
>
>
>
> --- On Sat=2C 7/10/10=2C Bill Lang <billlang@live.com.au> wrote:
>
>
>
> From: Bill Lang <billlang@live.com.au>
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: "Yak List" <yak-list@matronics.com>=2C "Tim Windsor" <fly@topredwarbi
rds.com.au>
> Date: Saturday=2C July 10=2C 2010=2C 8:09 AM
>
>
> Thanks Mark=2C
>
> Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
>
> I think our next move will be to rig the Scuba air bottle directly to the
spider valve and make small adjustments and port air directly into the spi
der at each correction. That at least will save reassembly of all component
s as we try and turn the engine over=2C and eliminate in all cases any pote
ntial problems upstream.
>
> Bill
>
> Still in need of ideas
>
>
> > Subject: RE: Yak-List: RE: Starter sequence M14
> > Date: Fri=2C 9 Jul 2010 11:49:46 -0400
> > From: mark.bitterlich@navy.mil
> > To: yak-list@matronics.com
> >
int=2C MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > When the air-distributor is out of alignment or actually bad=2C the pro
p will tend to move a little bit=2C sometimes actually rotate backwards=2C
and then stop and oscillate with air coming out the exhaust. This sounds to
me like exactly what is happening to you. It was mentioned that adjusting
this thing is "no big deal". You need to hire that person and have them fix
it for you!
> >
> > I have seen three Russian mechanics flail around with this thing for ho
urs=2C and for them=2C it was indeed quite a BIG deal.
> >
> > If your mechanic can not do it=2C I am guessing you are going to have t
o hire someone to come out and do it for you. Recommend Vladimir Yastremski
=2C or Dennis.
> >
> > Mark Bitterlich
> >
> > P.s. One other really long shot possibility. Has ANYONE messed around w
ith the Tach Generator timing housing? Have they taken the tach generator o
ff=2C or messed around inside of that area? It is remotely possible that if
they have=2C there is a gear missing from inside that assy=2C that actuall
y turns the air starting distributor. In other words=2C make darn sure the
air-distributor is actually TURNING when you turn the prop by hand.
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server
@matronics.com] On Behalf Of Bill Lang
> > Sent: Friday=2C July 09=2C 2010 7:45 AM
> > To: Yak List=3B Tim Windsor
> > Subject: Yak-List: RE: Starter sequence M14
> >
> >
> > Pleading to anybody with detailed advice on how to get my M14P starter
to start my M14P
> >
> > Below is the correspondence so far that you good folks have provided. W
e have tried several settings on the starter spider=2C but to no success. T
he prop turns a few pots=2C quite slowly it seems=2C but then stops or =F6s
cillates=2C or blows air out the exhaust
> >
> > We have access to plenty of air. We have tried direct air to the spider
=2C eliminating all upstream equipment. We have tried 4=2C 6 8 12 degrees a
nd still the prop waffles around. The engine starts first pull manually and
is NEW=2C with only 50 hours on it. The starter has never worked on this e
ngine. We are now driven to distraction as a change in setting of the spide
r is very time consuming as you may know. Any thoughts?
> >
> > Once the engine is warm=2C the engine (I am told) started first go WITH
the air starter. Now this may be because=3B
> >
> > 1. engine warm and very easy to start on first rotation or
> > 2. maybe on a cold engine=2C valves are sticking cold=2C and are freed
once warmed. but
> >
> > Mechanic has done cold compression test and all pots exceed required co
mpression limits
> >
> > Just a tought but is it possible for valves to stick on a cold engine a
nd still show good compression on a compression test? I don't want to throw
in a red herring
> >
> > We are stumped
> >
> > Any thoughts suggestions instructions (any from left field) most welcom
e
> >
> > Helpppp!!
> >
> > Bill
> > .......................................................................
...........................................................................
.............
> >
> > Bill=2C
> >
> >
> > Prop degrees for Housai is 9 degrees=2C for M14P 8 degrees=2C both on #
4 cylinder after TDC.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lang
> > Sent: Wednesday=2C June 02=2C 2010 9:38 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > The mechanic is working on the spider now. He asked me to ask if anyone
knows the number of degrees of prop rotation from TDC to set the spider at
=2C or any other advice for setting it. The instuctions from the M14 manual
are a bit ambiguous. (no access to Housai Manual)
> >
> > Bill
> >
> >
> > _____
> >
> > From: gill.g(at)gpimail.com
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Fri=2C 9 Apr 2010 09:54:17 -0700
> >
> > If you have access to a Housai manual=2C it provides better instruction
s as it has a diagram. The difference relates to prop gearing. I have reset
mine twice after engine disassembly and it's not a big deal.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Yak Pilot
> > Sent: Thursday=2C April 08=2C 2010 5:50 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > GOOD FOR YOU! Good job in finding the proper task cards!
> >
> >
> > Let me run my mouth one last time. First=2C adjusting this thing is a r
eal pain in the ass. It is hard to get to the nuts and stuff to remove it
=2C it requires you to get the engine set up perfectly=2C and then insert t
he thing back in and tighten it down. I have been involved in adjusting it
twice=2C and it was a real ass kicker.
> >
> >
> > Next... make darn sure... let me correct that: MAKE DAMN SURE that you
know this is the problem before you remove it from the engine and start try
ing to re-adjust it. Once you remove it=2C you have no choice but to finish
the job.
> >
> >
> > I am not kidding when I tell you that a flow restriction in the air sys
tem will cause the exact same problem that you are reporting.
> >
> >
> > Yes=2C it is most likely that someone messed with this in the past=2C a
nd just could never get it right again=2C and this is what you have wrong n
ow. (I.E.
> > A misadjusted Air Distributor) The odds are good that this is your prob
lem=2C but as a Tech Rep=2C my mind always considers the alternatives and y
ou can never rule out ANYTHING unless you verify it as a "known good". That
said=2C if your AIR FLOW to this unit is low=2C it will do the exact same
thing you are now reporting.
> >
> >
> > That said=2C if I was there=2C I would take my nitrogen bottle with a g
ood regulator and would connect it DIRECTLY to the line going to the air di
stributor and would set it to 730 PSI and would see what happened when I tu
rned it on. If the engine does the exact same thing=2C then you are sure th
at the distributor is the problem. However=2C if the engine spins right aro
und perfectly=2C then you can STOP RIGHT THERE and say "BOY OH BOY IT IS NO
T THE AIR DISTRIBUTOR" and you have saved yourself one HUGE amount of work.
> >
> >
> > Consider this advice carefully.
> >
> >
> > Best regards=2C
> >
> >
> > Mark Bitterlich
> >
> >
> > --- On Thu=2C 4/8/10=2C Bill Lang wrote:
> >
> >
> > From: Bill Lang
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Thursday=2C April 8=2C 2010=2C 7:12 PM
> >
> > Mark
> > Further to my last.. found the ref on George's web site M14 maint Manua
l=2C task card 204. Hope my guy can do it.
> >
> > Thanks
> > Bill
> >
> > > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > > Date: Thu=2C 8 Apr 2010 12:53:38 -0400
> > > From: mark.bitterlich(at)navy.mil
> > > To: yak-list(at)matronics.com
> > >
> > MALS-14 64E"
> > >
> > >
> > >
> > > MOST LIKELY: Your air distributor is out of alignment.
> > >
> > > This is a tedious and exacting job. VERY TEDIOUS AND VERY EXACTING!
> > >
> > > There is a little gear in there with many little itsy tiny teeth that
> > > has to be JUST right.
> > >
> > > I would suggest you contact Dennis Savarese directly=2C I believe he
has
> > > the procedure written out and ready to send. It is addressed in the
> > > maint. Cards for the engine. It might also be at George Coy's web sit
e.
> > > His site is also a wealth of knowledge.
> > >
> > > It is much MUCH more complicated than just spinning it 180 degrees=2C
> > > SAD TO SAY! Without the instructions=2C I have seen people mess with
> > > this thing for days. DAYS!
> > >
> > > Just FYI=2C the thing does more than just put air into a cylinder to
> > > make the piston move. When it is perfectly set up=2C it not only puts
> > > air into one cylinder to push the piston down=2C it also sends air to
> > > the lower cylinders WITH THE EXHAUST VALVES OPEN to help push any oil
> > > that is in there right out the exhaust. But it has to be timed
> > > PERFECTLY to the engine=2C just like the ignition distributor on your
> > > car=2C or the mag on your airplane. Please excuse the language on the
> > > net=2C but it is a real SOB to adjust.
> > >
> > > I am sorry that I do not have the instructions to give you=2C or have
> > > them memorized... But I will tell you to not even think about messing
> > > with it until you have the instructions fully in hand and understand
> > > them perfectly.
> > >
> > > Mark Bitterlich
> > >
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server(at)matronics.com
> > > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lan
g
> > > Sent: Thursday=2C April 08=2C 2010 6:30 AM
> > > To: yak-list(at)matronics.com
> > > Subject: Yak-List: Yak 52 Starter Sequence?
> > >
> > >
> > >
> > >
> > > ________________________________
> > >
> > > To: yak-list(at)matronics.com
> > >
> > > Technical advice needed ref starter. I have just purchesed a Yak52
> > > that has apparently had a starter problem since a new engine was inst
alled.
> > > It seems that there is a sequencing problem of the air going into the
> > > cylinders. It turns a few degrees on start=2C and then air appears to
> > > blow straight through the cylinder to exhaust. Sometimes it turns bac
kwards.
> > > Would it be possible to install the starter spider 180 out? My
> > > mechanic and I would appreciate if anyone has faced this problem and
found a fix.
> > > Is there a mark on the spider or foolproof way of installing the
> > > spider that was overlooked by the original mechanics
> > >
> > > Taa
> > >
> > > Bill
> >
> > /157631292/direct/01/' target='_new'>Need a new place to li===
===================
> &g===============
> >
> >
> >
>
>
> ________________________________
>
> /direct/01/" rel=nofollow target=_blank>Browse profiles for FREE!
>
>
> =nofollow target=_blank>http://www.matronics.com/Navigator?Yak-List
> et=_blank>http://forums.matronics.com
> llow target=_blank>http://www.matronics.com/contribution
>
>
>
>
>
> tp://www.matronics.com/Navigator?Yak-List
> ronics.com
> ww.matronics.com/contribution
>
>
>
> ________________________________
>
> Meet local singles online.
>
>
===========
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>
>
>
_________________________________________________________________
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Message 2
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| Subject: | Re: RE: Starter sequence M14 |
That loud POP you hear is the air solenoid opening. It might be that valv
e is not opening thus no air to the starter valve.
Have you checked that the engine is actually rotating the shaft for the st
arter valve?
As I understand it,
Air enters the start valve. The valve directs it to a cylinder that is ju
st passed TDC of a compression stock. That piston is pushed down rotating
all the gearing in the accessory section. That rotation than moves the
start valve to the next position.
I would remove the starter and pull the engine though, and double check th
at engine is rotating the valve drive.
Have you had the starter a part? I am not sure how the starter built, but
it might be something internal with the starter itself.
Jim "Pappy" Goolsby
-----Original Message-----
From: Bill Lang <billlang@live.com.au>
.au>; Milton <jstace01@hotmail.com>
Sent: Sat, Jul 17, 2010 3:18 am
Subject: RE: Yak-List: RE: Starter sequence M14
SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air as
the starter is pushed. Pull started and ran it for half hour. Expecting
some rotation with starter, but still the POP of air not turning anything
.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely
effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Ces
snock and do an overnight stocktake for me
Any One Bueller?
Anyone?
Bill
> Subject: RE: Yak-List: RE: Starter sequence M14
> Date: Mon, 12 Jul 2010 11:13:19 -0400
> From: mark.bitterlich@navy.mil
> To: yak-list@matronics.com
>
, MALS-14 64E" <mark.bitterlich@navy.mil>
>
> That info was pulled from a direct translation of the M-14 manual writte
n the folks who made the engine.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@
matronics.com] On Behalf Of Bill Lang
> Sent: Saturday, July 10, 2010 7:17 PM
> To: Yak List; Tim Windsor
> Subject: RE: Yak-List: RE: Starter sequence M14
>
> Mark
>
> No worries. Thank you for your efforts , and we will perservere with thi
s thing. Nothing cannot be fixed, eventually. Your information is indeed
different to what we had been told, so we will concentrate on around 12
degrees.
>
> Cheers
>
> Bill
>
>
> ________________________________
>
> Date: Sat, 10 Jul 2010 13:39:26 -0700
> From: yakplt@yahoo.com
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: yak-list@matronics.com
>
>
> Again Bill, sorry for assuming you were in the United States. Personally
, I have to tell you that I enjoyed Australia more than any place I have
ever been in my life, and that includes a whole lot of places. I was up
in Nowra and made friends with a lot of wonderful folks, so the last thin
g I want to do is be a wise-ass to a person who lives in a place I'd like
to come back and visit!
>
> The air distributor is set very much like when timing the mags. You want
to set the engine to 12 degrees after top dead center referencing the mas
ter cylinder, which is of course cylinder number 4. Again, set the engine
to 12 degrees AFTER top dead center on cylinder number four!
>
> Now adjust the the air distributor so that the slide valve will open the
supply of air to the number four cylinder by 1 mm.
>
> That's the best I can do to help you. I hope it is enough.
>
> Mark
>
>
>
> --- On Sat, 7/10/10, Bill Lang <billlang@live.com.au> wrote:
>
>
>
> From: Bill Lang <billlang@live.com.au>
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: "Yak List" <yak-list@matronics.com>, "Tim Windsor" <fly@topredwarbir
ds.com.au>
> Date: Saturday, July 10, 2010, 8:09 AM
>
>
> Thanks Mark,
>
> Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget
.
>
> I think our next move will be to rig the Scuba air bottle directly to th
e spider valve and make small adjustments and port air directly into the
spider at each correction. That at least will save reassembly of all comp
onents as we try and turn the engine over, and eliminate in all cases any
potential problems upstream.
>
> Bill
>
> Still in need of ideas
>
>
> > Subject: RE: Yak-List: RE: Starter sequence M14
> > Date: Fri, 9 Jul 2010 11:49:46 -0400
> > From: mark.bitterlich@navy.mil
> > To: yak-list@matronics.com
> >
nt, MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > When the air-distributor is out of alignment or actually bad, the prop
will tend to move a little bit, sometimes actually rotate backwards, and
then stop and oscillate with air coming out the exhaust. This sounds to
me like exactly what is happening to you. It was mentioned that adjusting
this thing is "no big deal". You need to hire that person and have them
fix it for you!
> >
> > I have seen three Russian mechanics flail around with this thing for
hours, and for them, it was indeed quite a BIG deal.
> >
> > If your mechanic can not do it, I am guessing you are going to have to
hire someone to come out and do it for you. Recommend Vladimir Yastremski
, or Dennis.
> >
> > Mark Bitterlich
> >
> > P.s. One other really long shot possibility. Has ANYONE messed around
with the Tach Generator timing housing? Have they taken the tach generato
r off, or messed around inside of that area? It is remotely possible that
if they have, there is a gear missing from inside that assy, that actuall
y turns the air starting distributor. In other words, make darn sure the
air-distributor is actually TURNING when you turn the prop by hand.
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-serve
r@matronics.com] On Behalf Of Bill Lang
> > Sent: Friday, July 09, 2010 7:45 AM
> > To: Yak List; Tim Windsor
> > Subject: Yak-List: RE: Starter sequence M14
> >
> >
> > Pleading to anybody with detailed advice on how to get my M14P starter
to start my M14P
> >
> > Below is the correspondence so far that you good folks have provided.
We have tried several settings on the starter spider, but to no success.
The prop turns a few pots, quite slowly it seems, but then stops or =C3
=B6scillates, or blows air out the exhaust
> >
> > We have access to plenty of air. We have tried direct air to the spide
r, eliminating all upstream equipment. We have tried 4, 6 8 12 degrees and
still the prop waffles around. The engine starts first pull manually and
is NEW, with only 50 hours on it. The starter has never worked on this en
gine. We are now driven to distraction as a change in setting of the spide
r is very time consuming as you may know. Any thoughts?
> >
> > Once the engine is warm, the engine (I am told) started first go WITH
the air starter. Now this may be because;
> >
> > 1. engine warm and very easy to start on first rotation or
> > 2. maybe on a cold engine, valves are sticking cold, and are freed onc
e warmed. but
> >
> > Mechanic has done cold compression test and all pots exceed required
compression limits
> >
> > Just a tought but is it possible for valves to stick on a cold engine
and still show good compression on a compression test? I don't want to th
row in a red herring
> >
> > We are stumped
> >
> > Any thoughts suggestions instructions (any from left field) most welco
me
> >
> > Helpppp!!
> >
> > Bill
> > ......................................................................
..........................................................................
...............
> >
> > Bill,
> >
> >
> > Prop degrees for Housai is 9 degrees, for M14P 8 degrees, both on #4
cylinder after TDC.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lang
> > Sent: Wednesday, June 02, 2010 9:38 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > The mechanic is working on the spider now. He asked me to ask if anyon
e knows the number of degrees of prop rotation from TDC to set the spider
at, or any other advice for setting it. The instuctions from the M14 manu
al are a bit ambiguous. (no access to Housai Manual)
> >
> > Bill
> >
> >
> > _____
> >
> > From: gill.g(at)gpimail.com
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Fri, 9 Apr 2010 09:54:17 -0700
> >
> > If you have access to a Housai manual, it provides better instructions
as it has a diagram. The difference relates to prop gearing. I have reset
mine twice after engine disassembly and it's not a big deal.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Yak Pilot
> > Sent: Thursday, April 08, 2010 5:50 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > GOOD FOR YOU! Good job in finding the proper task cards!
> >
> >
> > Let me run my mouth one last time. First, adjusting this thing is a re
al pain in the ass. It is hard to get to the nuts and stuff to remove it,
it requires you to get the engine set up perfectly, and then insert the
thing back in and tighten it down. I have been involved in adjusting it
twice, and it was a real ass kicker.
> >
> >
> > Next... make darn sure... let me correct that: MAKE DAMN SURE that you
know this is the problem before you remove it from the engine and start
trying to re-adjust it. Once you remove it, you have no choice but to fin
ish the job.
> >
> >
> > I am not kidding when I tell you that a flow restriction in the air sy
stem will cause the exact same problem that you are reporting.
> >
> >
> > Yes, it is most likely that someone messed with this in the past, and
just could never get it right again, and this is what you have wrong now.
(I.E.
> > A misadjusted Air Distributor) The odds are good that this is your pro
blem, but as a Tech Rep, my mind always considers the alternatives and you
can never rule out ANYTHING unless you verify it as a "known good". That
said, if your AIR FLOW to this unit is low, it will do the exact same thi
ng you are now reporting.
> >
> >
> > That said, if I was there, I would take my nitrogen bottle with a good
regulator and would connect it DIRECTLY to the line going to the air dist
ributor and would set it to 730 PSI and would see what happened when I tur
ned it on. If the engine does the exact same thing, then you are sure that
the distributor is the problem. However, if the engine spins right around
perfectly, then you can STOP RIGHT THERE and say "BOY OH BOY IT IS NOT TH
E AIR DISTRIBUTOR" and you have saved yourself one HUGE amount of work.
> >
> >
> > Consider this advice carefully.
> >
> >
> > Best regards,
> >
> >
> > Mark Bitterlich
> >
> >
> > --- On Thu, 4/8/10, Bill Lang wrote:
> >
> >
> > From: Bill Lang
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Thursday, April 8, 2010, 7:12 PM
> >
> > Mark
> > Further to my last.. found the ref on George's web site M14 maint Manu
al, task card 204. Hope my guy can do it.
> >
> > Thanks
> > Bill
> >
> > > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > > Date: Thu, 8 Apr 2010 12:53:38 -0400
> > > From: mark.bitterlich(at)navy.mil
> > > To: yak-list(at)matronics.com
> > >
> > MALS-14 64E"
> > >
> > >
> > >
> > > MOST LIKELY: Your air distributor is out of alignment.
> > >
> > > This is a tedious and exacting job. VERY TEDIOUS AND VERY EXACTING!
> > >
> > > There is a little gear in there with many little itsy tiny teeth tha
t
> > > has to be JUST right.
> > >
> > > I would suggest you contact Dennis Savarese directly, I believe he
has
> > > the procedure written out and ready to send. It is addressed in the
> > > maint. Cards for the engine. It might also be at George Coy's web si
te.
> > > His site is also a wealth of knowledge.
> > >
> > > It is much MUCH more complicated than just spinning it 180 degrees,
> > > SAD TO SAY! Without the instructions, I have seen people mess with
> > > this thing for days. DAYS!
> > >
> > > Just FYI, the thing does more than just put air into a cylinder to
> > > make the piston move. When it is perfectly set up, it not only puts
> > > air into one cylinder to push the piston down, it also sends air to
> > > the lower cylinders WITH THE EXHAUST VALVES OPEN to help push any oi
l
> > > that is in there right out the exhaust. But it has to be timed
> > > PERFECTLY to the engine, just like the ignition distributor on your
> > > car, or the mag on your airplane. Please excuse the language on the
> > > net, but it is a real SOB to adjust.
> > >
> > > I am sorry that I do not have the instructions to give you, or have
> > > them memorized... But I will tell you to not even think about messin
g
> > > with it until you have the instructions fully in hand and understand
> > > them perfectly.
> > >
> > > Mark Bitterlich
> > >
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server(at)matronics.com
> > > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill La
ng
> > > Sent: Thursday, April 08, 2010 6:30 AM
> > > To: yak-list(at)matronics.com
> > > Subject: Yak-List: Yak 52 Starter Sequence?
> > >
> > >
> > >
> > >
> > > ________________________________
> > >
> > > To: yak-list(at)matronics.com
> > >
> > > Technical advice needed ref starter. I have just purchesed a Yak52
> > > that has apparently had a starter problem since a new engine was ins
talled.
> > > It seems that there is a sequencing problem of the air going into th
e
> > > cylinders. It turns a few degrees on start, and then air appears to
> > > blow straight through the cylinder to exhaust. Sometimes it turns ba
ckwards.
> > > Would it be possible to install the starter spider 180 out? My
> > > mechanic and I would appreciate if anyone has faced this problem and
found a fix.
> > > Is there a mark on the spider or foolproof way of installing the
> > > spider that was overlooked by the original mechanics
> > >
> > > Taa
> > >
> > > Bill
> >
> > /157631292/direct/01/' target='_new'>Need a new place to li===
===================
> &g===============
> >
> >
> >
>
>
> ________________________________
>
> /direct/01/" rel=nofollow target=_blank>Browse profiles for FREE!
>
>
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>
>
>
>
>
> tp://www.matronics.com/Navigator?Yak-List
> ronics.com
> ww.matronics.com/contribution
>
>
>
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>
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>
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Message 3
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|
| Subject: | Re: RE: Starter sequence M14 |
According to the Task Card 204 in the M14 manual, the correct procedure
is to first position the engine at 12 degrees after TDC on the #4
cylinder. Then rotate the prop in its normal direction back to 8
degrees after TDC. This is where you set the air distributor. The
instructions in task card 204 say at this point to set the slide to
where the inner hole opens for 1 mm. There is an inner and an outer
hole in the air distributor slider.
Dennis
----- Original Message -----
From: Bill Lang
To: Yak List ; Tim Windsor ; Milton
Sent: Saturday, July 17, 2010 2:18 AM
Subject: RE: Yak-List: RE: Starter sequence M14
SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air
as the starter is pushed. Pull started and ran it for half hour.
Expecting some rotation with starter, but still the POP of air not
turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is
definitely effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to
Cessnock and do an overnight stocktake for me
Any One Bueller?
Anyone?
Bill
> Subject: RE: Yak-List: RE: Starter sequence M14
> Date: Mon, 12 Jul 2010 11:13:19 -0400
> From: mark.bitterlich@navy.mil
> To: yak-list@matronics.com
>
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>
> That info was pulled from a direct translation of the M-14 manual
written the folks who made the engine.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill Lang
> Sent: Saturday, July 10, 2010 7:17 PM
> To: Yak List; Tim Windsor
> Subject: RE: Yak-List: RE: Starter sequence M14
>
> Mark
>
> No worries. Thank you for your efforts , and we will perservere with
this thing. Nothing cannot be fixed, eventually. Your information is
indeed different to what we had been told, so we will concentrate on
around 12 degrees.
>
> Cheers
>
> Bill
>
>
> ________________________________
>
> Date: Sat, 10 Jul 2010 13:39:26 -0700
> From: yakplt@yahoo.com
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: yak-list@matronics.com
>
>
> Again Bill, sorry for assuming you were in the United States.
Personally, I have to tell you that I enjoyed Australia more than any
place I have ever been in my life, and that includes a whole lot of
places. I was up in Nowra and made friends with a lot of wonderful
folks, so the last thing I want to do is be a wise-ass to a person who
lives in a place I'd like to come back and visit!
>
> The air distributor is set very much like when timing the mags. You
want to set the engine to 12 degrees after top dead center referencing
the master cylinder, which is of course cylinder number 4. Again, set
the engine to 12 degrees AFTER top dead center on cylinder number four!
>
> Now adjust the the air distributor so that the slide valve will open
the supply of air to the number four cylinder by 1 mm.
>
> That's the best I can do to help you. I hope it is enough.
>
> Mark
>
>
>
> --- On Sat, 7/10/10, Bill Lang <billlang@live.com.au> wrote:
>
>
>
> From: Bill Lang <billlang@live.com.au>
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: "Yak List" <yak-list@matronics.com>, "Tim Windsor"
<fly@topredwarbirds.com.au>
> Date: Saturday, July 10, 2010, 8:09 AM
>
>
> Thanks Mark,
>
> Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my
budget.
>
> I think our next move will be to rig the Scuba air bottle directly
to the spider valve and make small adjustments and port air directly
into the spider at each correction. That at least will save reassembly
of all components as we try and turn the engine over, and eliminate in
all cases any potential problems upstream.
>
> Bill
>
> Still in need of ideas
>
>
> > Subject: RE: Yak-List: RE: Starter sequence M14
> > Date: Fri, 9 Jul 2010 11:49:46 -0400
> > From: mark.bitterlich@navy.mil
> > To: yak-list@matronics.com
> >
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > When the air-distributor is out of alignment or actually bad, the
prop will tend to move a little bit, sometimes actually rotate
backwards, and then stop and oscillate with air coming out the exhaust.
This sounds to me like exactly what is happening to you. It was
mentioned that adjusting this thing is "no big deal". You need to hire
that person and have them fix it for you!
> >
> > I have seen three Russian mechanics flail around with this thing
for hours, and for them, it was indeed quite a BIG deal.
> >
> > If your mechanic can not do it, I am guessing you are going to
have to hire someone to come out and do it for you. Recommend Vladimir
Yastremski, or Dennis.
> >
> > Mark Bitterlich
> >
> > P.s. One other really long shot possibility. Has ANYONE messed
around with the Tach Generator timing housing? Have they taken the tach
generator off, or messed around inside of that area? It is remotely
possible that if they have, there is a gear missing from inside that
assy, that actually turns the air starting distributor. In other words,
make darn sure the air-distributor is actually TURNING when you turn the
prop by hand.
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bill Lang
> > Sent: Friday, July 09, 2010 7:45 AM
> > To: Yak List; Tim Windsor
> > Subject: Yak-List: RE: Starter sequence M14
> >
> >
> > Pleading to anybody with detailed advice on how to get my M14P
starter to start my M14P
> >
> > Below is the correspondence so far that you good folks have
provided. We have tried several settings on the starter spider, but to
no success. The prop turns a few pots, quite slowly it seems, but then
stops or =F6scillates, or blows air out the exhaust
> >
> > We have access to plenty of air. We have tried direct air to the
spider, eliminating all upstream equipment. We have tried 4, 6 8 12
degrees and still the prop waffles around. The engine starts first pull
manually and is NEW, with only 50 hours on it. The starter has never
worked on this engine. We are now driven to distraction as a change in
setting of the spider is very time consuming as you may know. Any
thoughts?
> >
> > Once the engine is warm, the engine (I am told) started first go
WITH the air starter. Now this may be because;
> >
> > 1. engine warm and very easy to start on first rotation or
> > 2. maybe on a cold engine, valves are sticking cold, and are freed
once warmed. but
> >
> > Mechanic has done cold compression test and all pots exceed
required compression limits
> >
> > Just a tought but is it possible for valves to stick on a cold
engine and still show good compression on a compression test? I don't
want to throw in a red herring
> >
> > We are stumped
> >
> > Any thoughts suggestions instructions (any from left field) most
welcome
> >
> > Helpppp!!
> >
> > Bill
> >
.........................................................................
.........................................................................
.............
> >
> > Bill,
> >
> >
> > Prop degrees for Housai is 9 degrees, for M14P 8 degrees, both on
#4 cylinder after TDC.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill
Lang
> > Sent: Wednesday, June 02, 2010 9:38 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > The mechanic is working on the spider now. He asked me to ask if
anyone knows the number of degrees of prop rotation from TDC to set the
spider at, or any other advice for setting it. The instuctions from the
M14 manual are a bit ambiguous. (no access to Housai Manual)
> >
> > Bill
> >
> >
> > _____
> >
> > From: gill.g(at)gpimail.com
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Fri, 9 Apr 2010 09:54:17 -0700
> >
> > If you have access to a Housai manual, it provides better
instructions as it has a diagram. The difference relates to prop
gearing. I have reset mine twice after engine disassembly and it's not a
big deal.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Yak
Pilot
> > Sent: Thursday, April 08, 2010 5:50 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > GOOD FOR YOU! Good job in finding the proper task cards!
> >
> >
> > Let me run my mouth one last time. First, adjusting this thing is
a real pain in the ass. It is hard to get to the nuts and stuff to
remove it, it requires you to get the engine set up perfectly, and then
insert the thing back in and tighten it down. I have been involved in
adjusting it twice, and it was a real ass kicker.
> >
> >
> > Next... make darn sure... let me correct that: MAKE DAMN SURE that
you know this is the problem before you remove it from the engine and
start trying to re-adjust it. Once you remove it, you have no choice but
to finish the job.
> >
> >
> > I am not kidding when I tell you that a flow restriction in the
air system will cause the exact same problem that you are reporting.
> >
> >
> > Yes, it is most likely that someone messed with this in the past,
and just could never get it right again, and this is what you have wrong
now. (I.E.
> > A misadjusted Air Distributor) The odds are good that this is your
problem, but as a Tech Rep, my mind always considers the alternatives
and you can never rule out ANYTHING unless you verify it as a "known
good". That said, if your AIR FLOW to this unit is low, it will do the
exact same thing you are now reporting.
> >
> >
> > That said, if I was there, I would take my nitrogen bottle with a
good regulator and would connect it DIRECTLY to the line going to the
air distributor and would set it to 730 PSI and would see what happened
when I turned it on. If the engine does the exact same thing, then you
are sure that the distributor is the problem. However, if the engine
spins right around perfectly, then you can STOP RIGHT THERE and say "BOY
OH BOY IT IS NOT THE AIR DISTRIBUTOR" and you have saved yourself one
HUGE amount of work.
> >
> >
> > Consider this advice carefully.
> >
> >
> > Best regards,
> >
> >
> > Mark Bitterlich
> >
> >
> > --- On Thu, 4/8/10, Bill Lang wrote:
> >
> >
> > From: Bill Lang
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Thursday, April 8, 2010, 7:12 PM
> >
> > Mark
> > Further to my last.. found the ref on George's web site M14 maint
Manual, task card 204. Hope my guy can do it.
> >
> > Thanks
> > Bill
> >
> > > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > > Date: Thu, 8 Apr 2010 12:53:38 -0400
> > > From: mark.bitterlich(at)navy.mil
> > > To: yak-list(at)matronics.com
> > >
> > MALS-14 64E"
> > >
> > >
> > >
> > > MOST LIKELY: Your air distributor is out of alignment.
> > >
> > > This is a tedious and exacting job. VERY TEDIOUS AND VERY
EXACTING!
> > >
> > > There is a little gear in there with many little itsy tiny teeth
that
> > > has to be JUST right.
> > >
> > > I would suggest you contact Dennis Savarese directly, I believe
he has
> > > the procedure written out and ready to send. It is addressed in
the
> > > maint. Cards for the engine. It might also be at George Coy's
web site.
> > > His site is also a wealth of knowledge.
> > >
> > > It is much MUCH more complicated than just spinning it 180
degrees,
> > > SAD TO SAY! Without the instructions, I have seen people mess
with
> > > this thing for days. DAYS!
> > >
> > > Just FYI, the thing does more than just put air into a cylinder
to
> > > make the piston move. When it is perfectly set up, it not only
puts
> > > air into one cylinder to push the piston down, it also sends air
to
> > > the lower cylinders WITH THE EXHAUST VALVES OPEN to help push
any oil
> > > that is in there right out the exhaust. But it has to be timed
> > > PERFECTLY to the engine, just like the ignition distributor on
your
> > > car, or the mag on your airplane. Please excuse the language on
the
> > > net, but it is a real SOB to adjust.
> > >
> > > I am sorry that I do not have the instructions to give you, or
have
> > > them memorized... But I will tell you to not even think about
messing
> > > with it until you have the instructions fully in hand and
understand
> > > them perfectly.
> > >
> > > Mark Bitterlich
> > >
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server(at)matronics.com
> > > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of
Bill Lang
> > > Sent: Thursday, April 08, 2010 6:30 AM
> > > To: yak-list(at)matronics.com
> > > Subject: Yak-List: Yak 52 Starter Sequence?
> > >
> > >
> > >
> > >
> > > ________________________________
> > >
> > > To: yak-list(at)matronics.com
> > >
> > > Technical advice needed ref starter. I have just purchesed a
Yak52
> > > that has apparently had a starter problem since a new engine was
installed.
> > > It seems that there is a sequencing problem of the air going
into the
> > > cylinders. It turns a few degrees on start, and then air appears
to
> > > blow straight through the cylinder to exhaust. Sometimes it
turns backwards.
> > > Would it be possible to install the starter spider 180 out? My
> > > mechanic and I would appreciate if anyone has faced this problem
and found a fix.
> > > Is there a mark on the spider or foolproof way of installing the
> > > spider that was overlooked by the original mechanics
> > >
> > > Taa
> > >
> > > Bill
> >
> > /157631292/direct/01/' target='_new'>Need a new place to
li======================
> &g===============
> >
> >
> >
>
>
> ________________________________
>
> /direct/01/" rel=nofollow target=_blank>Browse profiles for
FREE!
>
>
> =nofollow
target=_blank>http://www.matronics.com/Navigator?Yak-List
> et=_blank>http://forums.matronics.com
> llow target=_blank>http://www.matronics.com/contribution
>
>
>
>
>
> tp://www.matronics.com/Navigator?Yak-List
> ronics.com
> ww.matronics.com/contribution
>
>
>
> ________________________________
>
> Meet local
single=================
>
>
>
-------------------------------------------------------------------------
-----
Meet local singles online.
Message 4
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| Subject: | Re: RE: Starter sequence M14 |
Bill,
I'm including photo's and the procedure I followed on setting the timing for the
distributor. Do not feel that you are the only one that has experienced massive
frustration on this task, it took me three times just to get it close enough to
start the engine, that is where I left it so I can fly this summer. You are
defiantly on the right course. Be sure to know that you are aligning two
separate things here.
Hope this helps, the photos are of the setting where I had success. Hang in
there, and good luck
Scott Dierolf
Timing Start Distributor- M14-P
1) Turn the propeller shaft until the piston of the cylinder number 4 is at 8
degrees after TDC on power stroke as measured at the propeller shaft. Because
the gear ratio of the gearbox (0.658) actually the piston is at 12 degrees after
TDC if it is considered the crankshaft angle. Remove the plug and the gasket
from the top of the air distributor.
2) Remove the air injection lines, supply hose, and tach generator (if
installed) from the distributor body.
3) Remove the air distributor assembly.
4) Adjust the position of slide valve of the air distributor on the air
distributor cover according to the sketch above-
Looking inside of the distribution cover 9 holes correspond to each air start
line.
Each fitting it is stamped its cylinder number.
The slide valve has to be set with the inner window aligned to cylinder #4 with
an opening of 1 millimeter over the hole in the rotation sense of the slide
valve. Looking on the inside of the air distributor body the rotation sense of
the slide valve is counterclockwise.
5) Re-align the driving splines such that the air distributor can be
re-installed without disturbing the alignment of the slide valve.
6) Install the air distributor and connect the lines, hose, and tach generator.
DO NOT Overtorque the nuts securing the lines to the distributor fittings.
SITREP
12 Degrees off no 4 pot all set. Zero rotation, just a loud POP of air as the
starter is pushed. Pull started and ran it for half hour. Expecting some
rotation with starter, but still the POP of air not turning anything.
Very frustrating!!
What is encouraging is that the movement of the spider valve is definitely
effecting the prop movement on start.
8 degrees seemed the best, so will fiddle around there maybe.
The Aussie with the 18T and box of matches might like to come over to Cessnock
and do an overnight stocktake for me
Any One Bueller?
Message 5
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|
Hi all,,, just did a search and can't find. size for desser main wheel tires on
CJ, as well as cleveland size for nose wheel?
Plane at hangar, not due to go there for a week. Need to order tires.
thanks
skidmk
--------
Mike "Skidmk" Bourget
Ottawa, Ontario
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=305178#305178
Message 6
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| Subject: | Re: Tire Question |
If you just call Desser they know exactly which tire sizes you need for a CJs and
Yaks. No need to tell them the sizes just the plane types and they can send
them right out.
Pumper
On Jul 17, 2010, at 10:02 AM, skidmk wrote:
>
> Hi all,,, just did a search and can't find. size for desser main wheel tires
on CJ, as well as cleveland size for nose wheel?
>
> Plane at hangar, not due to go there for a week. Need to order tires.
>
> thanks
>
> skidmk
>
> --------
> Mike "Skidmk" Bourget
> Ottawa, Ontario
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=305178#305178
>
>
>
>
>
>
>
>
>
>
Message 7
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Aero Classic Mains 500 x 150
Nose 400 x 150
That is what the YAK 52 uses. If you go on Desser's website they have a
chart that you can click on to verify what aircraft you are ordering tires
for.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of skidmk
Sent: Saturday, July 17, 2010 10:03 AM
Subject: Yak-List: Tire Question
Hi all,,, just did a search and can't find. size for desser main wheel
tires on CJ, as well as cleveland size for nose wheel?
Plane at hangar, not due to go there for a week. Need to order tires.
thanks
skidmk
--------
Mike "Skidmk" Bourget
Ottawa, Ontario
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=305178#305178
Message 8
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| Subject: | Re: RE: Starter sequence M14 |
Dennis, it looks like my "translation" version on CD missed a step.- Sorr
y about that Bill.- But, seriously, being off 4 degrees should not cause
that darn thing not to even spin at all.-
-
Bill, ... Dennis said:---"There is an inner and an outer hole in the
air distributor slider."-
-
Did you catch that?-
-
Mark
--- On Sat, 7/17/10, A. Dennis Savarese <dsavarese0812@bellsouth.net> wrote
:
From: A. Dennis Savarese <dsavarese0812@bellsouth.net>
Subject: Re: Yak-List: RE: Starter sequence M14
#yiv1749091937 .hmmessage P {
PADDING-BOTTOM:0px;MARGIN:0px;PADDING-LEFT:0px;PADDING-RIGHT:0px;PADDING-TO
P:0px;}
#yiv1749091937 .hmmessage {
FONT-FAMILY:Verdana;FONT-SIZE:10pt;}
According to the Task Card 204 in the M14 manual, the correct procedure-i
s to first position the engine at 12 degrees after TDC on the #4 cylinder.
- Then rotate the prop in its normal direction back to 8 degrees after TD
C.- This is where you set the air distributor.- The instructions in tas
k card 204 say at this point-to set the slide to where the inner hole ope
ns for 1 mm.- There is an inner and an outer hole in the air distributor
slider.
Dennis
----- Original Message -----
From: Bill Lang
Sent: Saturday, July 17, 2010 2:18 AM
Subject: RE: Yak-List: RE: Starter sequence M14
SITREP
-
12 Degrees off no 4-pot all set. Zero rotation, just a loud POP of air as
the starter is pushed. Pull started and ran it for half hour. Expecting so
me rotation with starter, but still the POP of air not turning anything.
-
Very frustrating!!
-
What is encouraging is that the movement of the spider valve is definitely
effecting the prop movement on start.
-
8 degrees seemed the best, so will fiddle around there maybe.
-
-The Aussie with the 18T and box of matches might like to come over to Ce
ssnock and do an overnight stocktake for me
-
Any One--- Bueller?
-
Anyone?
-
-
Bill
-
> Subject: RE: Yak-List: RE: Starter sequence M14
> Date: Mon, 12 Jul 2010 11:13:19 -0400
> From: mark.bitterlich@navy.mil
> To: yak-list@matronics.com
>
MALS-14 64E" <mark.bitterlich@navy.mil>
>
> That info was pulled from a direct translation of the M-14 manual written
the folks who made the engine.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@m
atronics.com] On Behalf Of Bill Lang
> Sent: Saturday, July 10, 2010 7:17 PM
> To: Yak List; Tim Windsor
> Subject: RE: Yak-List: RE: Starter sequence M14
>
> Mark
>
> No worries. Thank you for your efforts , and we will perservere with this
thing. Nothing cannot be fixed, eventually. Your information is indeed dif
ferent to what we had been told, so we will concentrate on around 12 degree
s.
>
> Cheers
>
> Bill
>
>
> ________________________________
>
> Date: Sat, 10 Jul 2010 13:39:26 -0700
> From: yakplt@yahoo.com
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: yak-list@matronics.com
>
>
> Again Bill, sorry for assuming you were in the United States. Personally,
I have to tell you that I enjoyed Australia more than any place I have eve
r been in my life, and that includes a whole lot of places. I was up in Now
ra and made friends with a lot of wonderful folks, so the last thing I want
to do is be a wise-ass to a person who lives in a place I'd like to come b
ack and visit!
>
> The air distributor is set very much like when timing the mags. You want
to set the engine to 12 degrees after top dead center referencing the maste
r cylinder, which is of course cylinder number 4. Again, set the engine to
12 degrees AFTER top dead center on cylinder number four!
>
> Now adjust the the air distributor so that the slide valve will open the
supply of air to the number four cylinder by 1 mm.
>
> That's the best I can do to help you. I hope it is enough.
>
> Mark
>
>
>
> --- On Sat, 7/10/10, Bill Lang <billlang@live.com.au> wrote:
>
>
>
> From: Bill Lang <billlang@live.com.au>
> Subject: RE: Yak-List: RE: Starter sequence M14
> To: "Yak List" <yak-list@matronics.com>, "Tim Windsor" <fly@topredwarbird
s.com.au>
> Date: Saturday, July 10, 2010, 8:09 AM
>
>
> Thanks Mark,
>
> Unfortunately getting Vlad or Dennis to Sydney is a bit beyond my budget.
>
> I think our next move will be to rig the Scuba air bottle directly to the
spider valve and make small adjustments and port air directly into the spi
der at each correction. That at least will save reassembly of all component
s as we try and turn the engine over, and eliminate in all cases any potent
ial problems upstream.
>
> Bill
>
> Still in need of ideas
>
>
> > Subject: RE: Yak-List: RE: Starter sequence M14
> > Date: Fri, 9 Jul 2010 11:49:46 -0400
> > From: mark.bitterlich@navy.mil
> > To: yak-list@matronics.com
> >
t, MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > When the air-distributor is out of alignment or actually bad, the prop
will tend to move a little bit, sometimes actually rotate backwards, and th
en stop and oscillate with air coming out the exhaust. This sounds to me li
ke exactly what is happening to you. It was mentioned that adjusting this t
hing is "no big deal". You need to hire that person and have them fix it fo
r you!
> >
> > I have seen three Russian mechanics flail around with this thing for ho
urs, and for them, it was indeed quite a BIG deal.
> >
> > If your mechanic can not do it, I am guessing you are going to have to
hire someone to come out and do it for you. Recommend Vladimir Yastremski,
or Dennis.
> >
> > Mark Bitterlich
> >
> > P.s. One other really long shot possibility. Has ANYONE messed around w
ith the Tach Generator timing housing? Have they taken the tach generator o
ff, or messed around inside of that area? It is remotely possible that if t
hey have, there is a gear missing from inside that assy, that actually turn
s the air starting distributor. In other words, make darn sure the air-dist
ributor is actually TURNING when you turn the prop by hand.
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server
@matronics.com] On Behalf Of Bill Lang
> > Sent: Friday, July 09, 2010 7:45 AM
> > To: Yak List; Tim Windsor
> > Subject: Yak-List: RE: Starter sequence M14
> >
> >
> > Pleading to anybody with detailed advice on how to get my M14P starter
to start my M14P
> >
> > Below is the correspondence so far that you good folks have provided. W
e have tried several settings on the starter spider, but to no success. The
prop turns a few pots, quite slowly it seems, but then stops or =F6scillat
es, or blows air out the exhaust
> >
> > We have access to plenty of air. We have tried direct air to the spider
, eliminating all upstream equipment. We have tried 4, 6 8 12 degrees and s
till the prop waffles around. The engine starts first pull manually and is
NEW, with only 50 hours on it. The starter has never worked on this engine.
We are now driven to distraction as a change in setting of the spider is v
ery time consuming as you may know. Any thoughts?
> >
> > Once the engine is warm, the engine (I am told) started first go WITH t
he air starter. Now this may be because;
> >
> > 1. engine warm and very easy to start on first rotation or
> > 2. maybe on a cold engine, valves are sticking cold, and are freed once
warmed. but
> >
> > Mechanic has done cold compression test and all pots exceed required co
mpression limits
> >
> > Just a tought but is it possible for valves to stick on a cold engine a
nd still show good compression on a compression test? I don't want to throw
in a red herring
> >
> > We are stumped
> >
> > Any thoughts suggestions instructions (any from left field) most welcom
e
> >
> > Helpppp!!
> >
> > Bill
> > .......................................................................
...........................................................................
.............
> >
> > Bill,
> >
> >
> > Prop degrees for Housai is 9 degrees, for M14P 8 degrees, both on #4 cy
linder after TDC.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lang
> > Sent: Wednesday, June 02, 2010 9:38 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > The mechanic is working on the spider now. He asked me to ask if anyone
knows the number of degrees of prop rotation from TDC to set the spider at
, or any other advice for setting it. The instuctions from the M14 manual a
re a bit ambiguous. (no access to Housai Manual)
> >
> > Bill
> >
> >
> > _____
> >
> > From: gill.g(at)gpimail.com
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Fri, 9 Apr 2010 09:54:17 -0700
> >
> > If you have access to a Housai manual, it provides better instructions
as it has a diagram. The difference relates to prop gearing. I have reset m
ine twice after engine disassembly and it's not a big deal.
> >
> >
> > Gill
> >
> >
> > From: owner-yak-list-server(at)matronics.com
> > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Yak Pilot
> > Sent: Thursday, April 08, 2010 5:50 PM
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> >
> >
> > GOOD FOR YOU! Good job in finding the proper task cards!
> >
> >
> > Let me run my mouth one last time. First, adjusting this thing is a rea
l pain in the ass. It is hard to get to the nuts and stuff to remove it, it
requires you to get the engine set up perfectly, and then insert the thing
back in and tighten it down. I have been involved in adjusting it twice, a
nd it was a real ass kicker.
> >
> >
> > Next... make darn sure... let me correct that: MAKE DAMN SURE that you
know this is the problem before you remove it from the engine and start try
ing to re-adjust it. Once you remove it, you have no choice but to finish t
he job.
> >
> >
> > I am not kidding when I tell you that a flow restriction in the air sys
tem will cause the exact same problem that you are reporting.
> >
> >
> > Yes, it is most likely that someone messed with this in the past, and j
ust could never get it right again, and this is what you have wrong now. (I
.E.
> > A misadjusted Air Distributor) The odds are good that this is your prob
lem, but as a Tech Rep, my mind always considers the alternatives and you c
an never rule out ANYTHING unless you verify it as a "known good". That sai
d, if your AIR FLOW to this unit is low, it will do the exact same thing yo
u are now reporting.
> >
> >
> > That said, if I was there, I would take my nitrogen bottle with a good
regulator and would connect it DIRECTLY to the line going to the air distri
butor and would set it to 730 PSI and would see what happened when I turned
it on. If the engine does the exact same thing, then you are sure that the
distributor is the problem. However, if the engine spins right around perf
ectly, then you can STOP RIGHT THERE and say "BOY OH BOY IT IS NOT THE AIR
DISTRIBUTOR" and you have saved yourself one HUGE amount of work.
> >
> >
> > Consider this advice carefully.
> >
> >
> > Best regards,
> >
> >
> > Mark Bitterlich
> >
> >
> > --- On Thu, 4/8/10, Bill Lang wrote:
> >
> >
> > From: Bill Lang
> > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > Date: Thursday, April 8, 2010, 7:12 PM
> >
> > Mark
> > Further to my last.. found the ref on George's web site M14 maint Manua
l, task card 204. Hope my guy can do it.
> >
> > Thanks
> > Bill
> >
> > > Subject: RE: Yak-List: Yak 52 Starter Sequence?
> > > Date: Thu, 8 Apr 2010 12:53:38 -0400
> > > From: mark.bitterlich(at)navy.mil
> > > To: yak-list(at)matronics.com
> > >
> > MALS-14 64E"
> > >
> > >
> > >
> > > MOST LIKELY: Your air distributor is out of alignment.
> > >
> > > This is a tedious and exacting job. VERY TEDIOUS AND VERY EXACTING!
> > >
> > > There is a little gear in there with many little itsy tiny teeth that
> > > has to be JUST right.
> > >
> > > I would suggest you contact Dennis Savarese directly, I believe he ha
s
> > > the procedure written out and ready to send. It is addressed in the
> > > maint. Cards for the engine. It might also be at George Coy's web sit
e.
> > > His site is also a wealth of knowledge.
> > >
> > > It is much MUCH more complicated than just spinning it 180 degrees,
> > > SAD TO SAY! Without the instructions, I have seen people mess with
> > > this thing for days. DAYS!
> > >
> > > Just FYI, the thing does more than just put air into a cylinder to
> > > make the piston move. When it is perfectly set up, it not only puts
> > > air into one cylinder to push the piston down, it also sends air to
> > > the lower cylinders WITH THE EXHAUST VALVES OPEN to help push any oil
> > > that is in there right out the exhaust. But it has to be timed
> > > PERFECTLY to the engine, just like the ignition distributor on your
> > > car, or the mag on your airplane. Please excuse the language on the
> > > net, but it is a real SOB to adjust.
> > >
> > > I am sorry that I do not have the instructions to give you, or have
> > > them memorized... But I will tell you to not even think about messing
> > > with it until you have the instructions fully in hand and understand
> > > them perfectly.
> > >
> > > Mark Bitterlich
> > >
> > >
> > > -----Original Message-----
> > > From: owner-yak-list-server(at)matronics.com
> > > [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Bill Lan
g
> > > Sent: Thursday, April 08, 2010 6:30 AM
> > > To: yak-list(at)matronics.com
> > > Subject: Yak-List: Yak 52 Starter Sequence?
> > >
> > >
> > >
> > >
> > > ________________________________
> > >
> > > To: yak-list(at)matronics.com
> > >
> > > Technical advice needed ref starter. I have just purchesed a Yak52
> > > that has apparently had a starter problem since a new engine was inst
alled.
> > > It seems that there is a sequencing problem of the air going into the
> > > cylinders. It turns a few degrees on start, and then air appears to
> > > blow straight through the cylinder to exhaust. Sometimes it turns bac
kwards.
> > > Would it be possible to install the starter spider 180 out? My
> > > mechanic and I would appreciate if anyone has faced this problem and
found a fix.
> > > Is there a mark on the spider or foolproof way of installing the
> > > spider that was overlooked by the original mechanics
> > >
> > > Taa
> > >
> > > Bill
> >
> > /157631292/direct/01/' target='_new'>Need a new place to li===
===================
> &g===============
> >
> >
> >
>
>
> ________________________________
>
> /direct/01/" rel=nofollow target=_blank>Browse profiles for FREE!
>
>
> =nofollow target=_blank>http://www.matronics.com/Navigator?Yak-List
> et=_blank>http://forums.matronics.com
> llow target=_blank>http://www.matronics.com/contribution
>
>
>
>
>
> tp://www.matronics.com/Navigator?Yak-List
> ronics.com
> ww.matronics.com/contribution
>
>
>
> ________________________________
>
> Meet local single=================
>
>
>
Meet local singles online.
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.c
om/Navigator?Yak-List
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Message 9
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| Subject: | Re: Tire Question |
Cleveland nose tire is 600 x 6. FWIW, Doug Sapp has the main wheel
tires and tubes in stock. 1/2 the price of the new Desser tires. You
will have to call Desser for the nose wheel tire and tube though.
Dennis
----- Original Message -----
From: Roger Kemp M.D.
To: yak-list@matronics.com
Sent: Saturday, July 17, 2010 2:40 PM
Subject: RE: Yak-List: Tire Question
<viperdoc@mindspring.com>
Aero Classic Mains 500 x 150
Nose 400 x 150
That is what the YAK 52 uses. If you go on Desser's website they have
a
chart that you can click on to verify what aircraft you are ordering
tires
for.
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of skidmk
Sent: Saturday, July 17, 2010 10:03 AM
To: yak-list@matronics.com
Subject: Yak-List: Tire Question
Hi all,,, just did a search and can't find. size for desser main
wheel
tires on CJ, as well as cleveland size for nose wheel?
Plane at hangar, not due to go there for a week. Need to order tires.
thanks
skidmk
--------
Mike "Skidmk" Bourget
Ottawa, Ontario
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=305178#305178
Message 10
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| Subject: | Re: Tire Question |
Dennis,
Did you mean the 15 / 600 x 6? The regular 600 x 6 is too large, at
least for the CJ. The wheel for the Cessna 337 nose wheel works well
for this.
Warren Hill
On Jul 17, 2010, at 1:45 PM, A. Dennis Savarese wrote:
> Cleveland nose tire is 600 x 6. FWIW, Doug Sapp has the main wheel
tires and tubes in stock. 1/2 the price of the new Desser tires. You
will have to call Desser for the nose wheel tire and tube though.
> Dennis
> ----- Original Message -----
> From: Roger Kemp M.D.
> To: yak-list@matronics.com
> Sent: Saturday, July 17, 2010 2:40 PM
> Subject: RE: Yak-List: Tire Question
>
<viperdoc@mindspring.com>
>
> Aero Classic Mains 500 x 150
> Nose 400 x 150
> That is what the YAK 52 uses. If you go on Desser's website they have
a
> chart that you can click on to verify what aircraft you are ordering
tires
> for.
> Doc
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of skidmk
> Sent: Saturday, July 17, 2010 10:03 AM
> To: yak-list@matronics.com
> Subject: Yak-List: Tire Question
>
>
> Hi all,,, just did a search and can't find. size for desser main
wheel
> tires on CJ, as well as cleveland size for nose wheel?
>
> Plane at hangar, not due to go there for a week. Need to order tires.
>
> thanks
>
> skidmk
>
> --------
> Mike "Skidmk" Bourget
> Ottawa, Ontario
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=305178#305178
>
>
> http://www.matronics==================
======<; via the Web
href="http://forums.matronics.com">http://forums.matronics.com
> _p; generous bsp;
href="http://www.matronics.com/contribution">http://www.matronics.com/c=
===============
>
>
>
>
>
>
Message 11
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| Subject: | Re: RE: Starter sequence M14 |
Hi Scott; sorry , believe you reached the wrong "Bill". Never asked this
=0Aquestion. Good Luck.=0A----------------
-------------------------
-------------------------
-------------------------
-----------=0A Regards:=0A---------
-------------------------
-------------------------
-------------------------
-------------------------
---------------Bill=0A Scully-----
------- =0A=0A=0A=0A=0A=0A________________________________=0A
From: Scott Dierolf <rsdie_1@yahoo.com>=0ATo: yak-list@matronics.com=0ASent
: Sat, July 17, 2010 6:47:15 AM=0ASubject: Re: Yak-List: RE: Starter sequen
ce M14=0A=0A=0ABill,=0A=0AI'm including photo's and the procedure I followe
d on setting the timing for the =0Adistributor. Do not feel that you are th
e only one that has experienced massive =0Afrustration on this task, it too
k me three times just to get it close enough to =0Astart the engine, that i
s where I left it so I can fly this summer. You are =0Adefiantly on the rig
ht course. Be sure to know that you are aligning two =0Aseparate things her
e. =0A=0A=0AHope this helps, the photos are of the setting where I had succ
ess. Hang in =0Athere, and good luck=0A=0AScott Dierolf=0A=0A=0A=0A=0A=0ATi
ming Start Distributor- M14-P-- =0A=0A1)- Turn the propeller shaft un
til the piston of the cylinder number 4 is at 8 =0Adegrees after TDC on pow
er stroke as measured at the propeller shaft. Because =0Athe gear ratio of
the gearbox (0.658) actually the piston is at 12 degrees after =0ATDC if it
is considered the crankshaft angle. Remove the plug and the gasket =0Afrom
the top of the air distributor. =0A=0A-=0A2) Remove the air injection li
nes, supply hose, and tach generator (if =0Ainstalled) from the distributor
body.=0A=0A3) Remove the air distributor assembly.=0A=0A4) Adjust the posi
tion of slide valve of the air distributor on the air =0Adistributor cover
according to the sketch above-=0A=0ALooking inside of the distribution cove
r 9 holes correspond to each air start =0Aline. =0A=0A=0AEach fitting it is
stamped its cylinder number.=0A=0AThe slide valve has to be set with the i
nner window aligned to cylinder #4 with =0Aan opening of 1 millimeter over
the hole in the rotation sense of the slide =0Avalve.- Looking on the ins
ide of the air distributor body the rotation sense of =0Athe slide valve is
counterclockwise.=0A=0A5) Re-align the driving splines such that the air d
istributor can be =0Are-installed without disturbing the alignment of the s
lide valve.=0A=0A6) Install the air distributor and connect the lines, hose
, and tach generator.=0A=0ADO NOT Overtorque the nuts securing the lines to
the distributor fittings.=0A=0A-=0A=0A=0ASITREP=0A-=0A12 Degrees off n
o 4-pot all set. Zero rotation, just a loud POP of air as the =0Astarter
is pushed. Pull started and ran it for half hour. Expecting some =0Arotatio
n with starter, but still the POP of air not turning anything.=0A-=0AVery
frustrating!!=0A-=0AWhat is encouraging is that the movement of the spid
er valve is definitely =0Aeffecting the prop movement on start.=0A-=0A8 d
egrees seemed the best, so will fiddle around there maybe.=0A-=0A-The A
ussie with the 18T and box of matches might like to come over to Cessnock
=0Aand do an overnight stocktake for me=0A-=0AAny One--- Bueller?
=0A=0A=0A
Message 12
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| Subject: | Re: WhirlWind Propellers New composite blades |
Yep, they do look good.
I am running a set of GT blades on our Yak 18T.
Here in Australia we have had a very wet season up North in country that is
designated remote and is normally as dry as hell.
This vast area has had the best rainfall for 20 years.
We decided to spend 10 days flying around this area and combining this with
a fly-in up north before I have to have a shoulder op.
Absolutely spectacular with so much water and we have a Lake Eyre that is
huge and is fed by 3 rivers which have been in flood.
So much so that there are charter operators flying in from all over
Australia and 1 guy has established charter operations near the lake
operating about 5 X 210's, Stationar and 2 Airvans.
I have not done my sums yet, but total flying time was 1458 min, 24.3
hours.
The GT prop without any doubt at all performed just great.
Better speed and a better takeoff performance with a full load out of remote
strips on cattle stations and so on.
I am very pleased.
I would suggest that the Whirlwind would offer a similar performance and
both are worth looking at.
It probably is not before time.
----- Original Message -----
From: "flyinlow4u" <flyinlow4u@yahoo.com>
Sent: Thursday, July 15, 2010 9:19 AM
Subject: Yak-List: WhirlWind Propellers New composite blades
>
> Just trying to get the word out there, these are very nice blades. I have
> a set on my Yak 52.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=304821#304821
>
>
>
Message 13
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| Subject: | Re: YAK starting problems |
I know of the trip that Phil is talking about.
We have just spent 10 days from South Australia flying around the same
areas and encountered some extremely cold mornings.
17 miles out of an outback town (If one could call it that) we
encountered real heavy rain and got down on the deck but decided not
worth the risk.
Landed on a strip at a outback cattle station and spent the night there
only to wake up the next morning to find the 18T down to the axles in
mud from all the overnight rain.
Point is that in the cold weather, ignition OFF and prime whilst someone
turning the prop over and wait for a min or so before starting.
I have never had a problem with cold starts. And we did have some real
cold mornings and the Old Girl sitting outside all night.
Mind you, I am not talking about the freezing temps as in the US, Europe
or the UK, but it still gets dammed cold hear in Australia.
I have a friend that carries out this proceedure every time he starts
his 18T and it fires up instantly.
Cheers,
Chris.
----- Original Message -----
From: Eric Wobschall
To: yak-list@matronics.com
Sent: Sunday, July 11, 2010 9:26 PM
Subject: Re: Yak-List: YAK starting problems
Fun story. Good thing I wore my Australian phraseology guessing hat.
Time spent getting one's 18T running is still a lot more fun than real
work, especially with the right companion.
On Jul 11, 2010, at 6:18 AM, Phil Gower wrote:
Hello all, have been keenly following the latest postings re the
electronic ignition ideas as well as how easy it it to hand prop the
M14P (from Bill Lang).
Have just returned from what was to be a long tour around outback
Australia and it turned out to be 'if I knew then what I know now'
story.
If interested read about it by clicking on the following link:-
http://rappsystemscomau.melbourneitwebsites.com/auth/main/sb/preview/stag
e/page/vh_ykv.html
No doubt the 'old stagers' know about these things but it is posted
here for 'new chums'
Regards, Phil Gower.
p.s. as an electrical engineer if I can offer my services to any
ideas re electronic ignition then I would be happy to assist.
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/Navigator?Yak-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
ontribution
Message 14
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| Subject: | AIR START FIXTURE |
3 pictures for you
INTERESTING FIXTURE FOR HOLDING AIRSTART SLIDE VALVE IN POSITION FOR
ASSEMBLY
IT IS CHINESE, MADE FOR THE HUOSAI ENGINE, BUT WORKS ON THE M14 WITH MY
MOD PLATE.
JOE
1 of 3: Desktop\2010-05-19\2010-07-17\IM001058.jpg
2 of 3: Desktop\2010-05-19\2010-07-17\IM001059.jpg
3 of 3: Desktop\2010-05-19\2010-07-17\IM001060.jpg
These pictures were sent with Picasa, from Google. Try it out here:
http://picasa.google.com/
Message 15
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| Subject: | Re: AIR START FIXTURE |
OK...where do I get one?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=305264#305264
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Hi YAK-Folks,
first of all I want to thank you all for this great forum. It helps me a lot to
solve several problems with my YAK 52 in the past.
Now I have a question to all of you M14P experts.
A few weeks ago, while riding in my YAK with 82% and climbing, after 20 minutes
the engine stops two times short one after another only for a heartbeat. I stopped
climbing immediately and closed the throttle. After that, I noticed a loss
of power, while the engine runs smooth again. After checking the mags, with
no noticeable problems I went back to the airfield, landed and while shutting
down the prob it turned backwards a few cycles, which it hasnt done for the last
120 hours. I pulled the plugs (Dennis automotive conversion kit was installed
two years ago and the plugs were till the last 30 hours) and they have showed
a white surface, so it seems that the mixture was too lean. Therefore I changed
the diaphragm of the carb, which was already inside since the last 25 years
(!). It looks a bit crumpled but without any cracks.
While test running the engine after this with the cowling off, it runs great on
ground and shows every values in an acceptable range. After putting the cowling
back on again I did a test run again and while switching to magneto #2 it stops
intermittently for a second or so and shows also on both magnetos an excessive
drop of rpm, that means round about 6-7%. It was a very hot day with outside
temperatures of about 36C. At the moment it is very hot in Germany....
So, my question is, is it possible, that both coils in the mags went TU (I like
this expression ;-)) while the engine get (very) hot? Any other advices?
Thanks a lot in advance.
Best regards
Stefan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=305269#305269
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