Today's Message Index:
----------------------
1. 12:47 AM - re IFR upgrade (SRGraham)
2. 06:25 AM - Re: Magnito Issue Maybe.... (bmiles)
3. 07:22 AM - Re: Re: Magnito Issue Maybe.... (A. Dennis Savarese)
4. 02:25 PM - FOD Barrier (Jim Bowerman)
5. 03:07 PM - Re: Re: Magnito Issue Maybe.... (Yak Pilot)
6. 04:44 PM - Re: FOD Barrier (Roger Baker)
7. 06:50 PM - Re: [Fraud?] Re: Re: Magnito Issue Maybe.... (Richard.Goode)
8. 09:10 PM - CWAM Mi-24D Now Airworthy (Jon Boede)
Message 1
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Thanks guys,
Ill chase the options & report back
SG
Dr Stewart Graham MBBS FRACP Consultant Rheumatologist
Prov No. 462449A ABN-79105443463
Main Office: Suite1, 7 High St. Launceston, Tas 7250.
Clinics: Queenstown, King island, Burnie & Devonport
Email: srgrheumatology@bigpond.com Ph: 0363348631 Fax: 0363348547
Message 2
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| Subject: | Re: Magnito Issue Maybe.... |
I tried advancing the throttle on each Mag and the engine just about dies. Before
it dies it makes a pop popping noise as if (my guess) Sparks are jumping.
My fuel filter is good, diaphragm in the carburetor was checked about a month ago,
and I have never changed the fuel lines, maybe Ernie did before I bought the
plane.
A friend of mine thinks it's the harness and that we should replace it....
Any thoughts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=294297#294297
Message 3
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| Subject: | Re: Magnito Issue Maybe.... |
Please consider doing the automotive conversion kit. It solves the
wiring harness problems that are prevalent in both the Housai and M14
engines. You can read about it and download the instructions from my
web site, http://www.yak-52.com/plug_conversion.htm or you can call me
to discuss the conversion.
Dennis
----- Original Message -----
From: bmiles
To: yak-list@matronics.com
Sent: Thursday, April 15, 2010 8:23 AM
Subject: Yak-List: Re: Magnito Issue Maybe....
I tried advancing the throttle on each Mag and the engine just about
dies. Before it dies it makes a pop popping noise as if (my guess)
Sparks are jumping.
My fuel filter is good, diaphragm in the carburetor was checked about
a month ago, and I have never changed the fuel lines, maybe Ernie did
before I bought the plane.
A friend of mine thinks it's the harness and that we should replace
it....
Any thoughts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=294297#294297
Message 4
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Can someone tell me where I can purchase a FOD barrier for a Yak 52?
Jim Bowerman
jbowerman@fastspot.net
Message 5
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| Subject: | Re: Magnito Issue Maybe.... |
It is hard to believe it is an ignition issue if it is doing it on both mag
s equally bad.- You also mentioned earlier that if you leave it on BOTH m
ags operating, you can advance the throttle, it pops a lot, and then seems
to run better and work correctly.-
-
Is this true?- Can you advance the throttle and get PAST this popping and
then it runs OK?-
-
Try advancing the throttle very very VERY slowly and see if it impacts how
things happen and give a very detailed report of what happens.- Step by s
tep.- You simply can't say too much, but you can easily say too little an
d leave out an important detail.-
-
To ME, this sounds like the engine is going lean as you advance the throttl
e.- The POP POP sound is probably the engine going lean and having some k
ind of backfire, or pop in the exhaust itself.--It just FEELS like it i
s fuel related.-
-
If you can just CREEP the throttle forward a tiny bit at a time and get by
this and then when it gets up to a certain RPM it starts running better, it
IS a fuel thing almost certainly.-
-
Two things... take a VERY VERY close look at your intake tubes!- If you h
ave an intake drain kit, make darn certain that all those lines are good an
d there are NO LEAKS!- When the engine is at idle it is drawing a vacuum
and as you advance the throttle, if you have a massive leak, you will draw
in fresh air, the engine cylinder will go lean, and it will POP.- Once yo
u get past that a bit, you will develop more positive pressure in the tube
and it will start to richen up and fire because of the blower.-
-
These are all wild ass guesses based on just my own past experience with in
take leaks on a number of different engines.- I mean, look CAREFULLY for
any kind of intake leak.- Flange nuts, joints, big cracks, splits... I me
an look CAREFULLY!-
-
Second... it might be something really bad wrong in the carb.-
-
A lot of people are more expert than me on this kind of problem.- However
, the more details you can give will end up giving you more accurate feedba
ck.- They are not there, they can not hear or see what is happening, so i
t is all on you really.-
-
One clue to me is the manifold pressure bouncing up and down when it starts
popping.- This is to me an indication of an intake backfire.-
-
But all this could be totally wrong.
-
Mark Bitterlich
-
p.s.- A very dangerous trick to find this kind of thing is to have the en
gine idling, and then using very very quick and brief shots, squirt in some
-starter fluid around intake areas where there may be a leak.- If you h
ave it at idle and all of a sudden the sound of the engine changes, you hav
e an intake leak right there.- A lot of people use WD-40 instead to do th
is, which is not quite as dangerous.- I am not saying you should do this,
as it is possible to cause a disaster in the process.- Starting fluid is
ether and man oh man... you are literally playing with fire.- I have NEV
ER done this on an aircraft engine.- NEVER!-- I have done it on car r
acing engines, and they are a lot safer.- In any case, I would NEVER use
the starter fluid idea on an aircraft engine, just too damn dangerous.- W
D-40... maybe.-
-
--- On Thu, 4/15/10, bmiles <miles@wambua.com> wrote:
From: bmiles <miles@wambua.com>
Subject: Yak-List: Re: Magnito Issue Maybe....
I tried advancing the throttle on each Mag and the engine just about dies.
- Before it dies it makes a pop popping noise as if- (my guess) Sparks
are jumping.
My fuel filter is good, diaphragm in the carburetor was checked about a mon
th ago, and I have never changed the fuel lines, maybe Ernie did before I b
ought the plane.
A friend of mine thinks it's the harness and that we should replace it....
Any thoughts
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=294297#294297
le, List Admin.
Message 6
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Vladimir Yastremski 619-379-1860
On Apr 15, 2010, at 2:20 PM, Jim Bowerman wrote:
>
> Can someone tell me where I can purchase a FOD barrier for a Yak 52?
>
> Jim Bowerman
> jbowerman@fastspot.net
>
>
>
>
>
Roger E. Baker, Managing Director
Panadero Energy Components, LLC
dba PEC AirAssist
760/809-5506
760/730-9244
760/454-4595 fax
f4ffm2@roadrunner.com
Message 7
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| Subject: | Re: Magnito Issue Maybe.... |
My own view is that over 80% of problems on these engines is down to
high tension electrics.Totally inexplicable behaviour to the mag
switches is not unusual!
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
I'm currently in Sri Lanka but this Mail is working,and my local phone
is +94 779 132 160.
----- Original Message -----
From: Yak Pilot
To: yak-list@matronics.com
Sent: Friday, April 16, 2010 3:37 AM
Subject: [Fraud?] Re: Yak-List: Re: Magnito Issue Maybe....
It is hard to believe it is an ignition issue if it is doing it
on both mags equally bad. You also mentioned earlier that if you leave
it on BOTH mags operating, you can advance the throttle, it pops a lot,
and then seems to run better and work correctly.
Is this true? Can you advance the throttle and get PAST this
popping and then it runs OK?
Try advancing the throttle very very VERY slowly and see if it
impacts how things happen and give a very detailed report of what
happens. Step by step. You simply can't say too much, but you can
easily say too little and leave out an important detail.
To ME, this sounds like the engine is going lean as you advance
the throttle. The POP POP sound is probably the engine going lean and
having some kind of backfire, or pop in the exhaust itself. It just
FEELS like it is fuel related.
If you can just CREEP the throttle forward a tiny bit at a time
and get by this and then when it gets up to a certain RPM it starts
running better, it IS a fuel thing almost certainly.
Two things... take a VERY VERY close look at your intake tubes!
If you have an intake drain kit, make darn certain that all those lines
are good and there are NO LEAKS! When the engine is at idle it is
drawing a vacuum and as you advance the throttle, if you have a massive
leak, you will draw in fresh air, the engine cylinder will go lean, and
it will POP. Once you get past that a bit, you will develop more
positive pressure in the tube and it will start to richen up and fire
because of the blower.
These are all wild ass guesses based on just my own past
experience with intake leaks on a number of different engines. I mean,
look CAREFULLY for any kind of intake leak. Flange nuts, joints, big
cracks, splits... I mean look CAREFULLY!
Second... it might be something really bad wrong in the carb.
A lot of people are more expert than me on this kind of problem.
However, the more details you can give will end up giving you more
accurate feedback. They are not there, they can not hear or see what is
happening, so it is all on you really.
One clue to me is the manifold pressure bouncing up and down
when it starts popping. This is to me an indication of an intake
backfire.
But all this could be totally wrong.
Mark Bitterlich
p.s. A very dangerous trick to find this kind of thing is to
have the engine idling, and then using very very quick and brief shots,
squirt in some starter fluid around intake areas where there may be a
leak. If you have it at idle and all of a sudden the sound of the
engine changes, you have an intake leak right there. A lot of people
use WD-40 instead to do this, which is not quite as dangerous. I am not
saying you should do this, as it is possible to cause a disaster in the
process. Starting fluid is ether and man oh man... you are literally
playing with fire. I have NEVER done this on an aircraft engine.
NEVER! I have done it on car racing engines, and they are a lot safer.
In any case, I would NEVER use the starter fluid idea on an aircraft
engine, just too damn dangerous. WD-40... maybe.
--- On Thu, 4/15/10, bmiles <miles@wambua.com> wrote:
From: bmiles <miles@wambua.com>
Subject: Yak-List: Re: Magnito Issue Maybe....
To: yak-list@matronics.com
Date: Thursday, April 15, 2010, 9:23 AM
detected a possible fraud attempt from "us.mc507.mail.yahoo.com"
claiming to be miles@wambua.com>
I tried advancing the throttle on each Mag and the engine just
about dies. Before it dies it makes a pop popping noise as if (my
guess) Sparks are jumping.
My fuel filter is good, diaphragm in the carburetor was
checked about a month ago, and I have never changed the fuel lines,
maybe Ernie did before I bought the plane.
A friend of mine thinks it's the harness and that we should
replace it....
Any thoughts
Read this topic online here:
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Message 8
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| Subject: | CWAM Mi-24D Now Airworthy |
The FAA issued a ex/ex airworthiness certificate for the Cold War Air Museu
m's Mi-24D Hind today.
Absolutely the baddest aircraft I've ever seen in the air... makes you want
to dive for cover in anticipation of muzzle flashes at all times. :-)
http://blog.cwam.org/2010/04/mi-24d-hind-at-cold-war-air-museum-now.html
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