Today's Message Index:
----------------------
1. 05:01 AM - Re: 912 UL -- easily flooded when hot (Thom Riddle)
2. 05:35 AM - Re: 912 UL -- easily flooded when hot (Dave Austin)
3. 06:43 AM - Exhaust spring wear (Roger Lee)
4. 06:48 AM - Mag Ground (Vic Peters)
5. 06:59 AM - Re: Exhaust spring wear (Pete Christensen)
6. 07:06 AM - Re: Exhaust spring wear (TheWanderingWench)
7. 07:09 AM - Fw: Kolb-List: hanger break-in (Jack)
8. 07:41 AM - Kolb-List: hanger break-in (Jack)
9. 08:07 AM - Re: Exhaust spring wear (Bob Comperini)
10. 09:33 AM - Re: Mag Ground (Richard Girard)
11. 09:54 AM - Re: Mag Ground (Gordon)
12. 04:30 PM - Re: Mag Ground (Richard Girard)
13. 07:52 PM - TLR46a TCU Program (pestar)
14. 10:57 PM - Re: TLR46a TCU Program (PHILLIPS I)
15. 11:49 PM - Re: TLR46a TCU Program (Gilles Thesee)
Message 1
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| Subject: | Re: 912 UL -- easily flooded when hot |
Ernest,
There is another possible cause of your hot start problem.
Make absolutely certain that your "choke" (starting carb) is closing completely
when the choke control is closed. I.E., make sure the chokes are hitting their
stops when choke is off.
I've seen this so often it is the first thing I look for with a hot start problem.
--------
Thom Riddle
Buffalo, NY (9G0)
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x32
Opportunity is missed by most people because it is dressed in overalls and looks
like work.
- Thomas A. Edison
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340251#340251
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| Subject: | Re: 912 UL -- easily flooded when hot |
Don,
I had that problem for some time and after many other efforts I reduced
the plug gaps to 22 thou and the problem disappeared.
Dave Austin 601HDS 912UL
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| Subject: | Exhaust spring wear |
Hi All,
While I was doing another rubber hose replacement on a relatively higher time plane
I noticed the springs are worn almost half way through where they connect
over the loop on the exhaust pipe and muffler. I have seen this many times before
and had forgot to mention something before. They do not need to be worn all
the way through before they just break off and you will never know when it
will fail. I used to own a Kolb MK III a long time ago and one did break before
I caught it at 800 hrs. All the Rotax 912's have spring wear. When your plane
gets to approximately 800 hrs. you need to toss the 8 exhaust springs and replace
them. The vibration can and will eat right through the spring hook. You
don't have to take anything else off, just pull the springs. Safety wire them
and then re-apply the high temp silicone on the spring. There are two ways to
apply silicone. The first way is to actually fill the inside of the spring with
silicone. The second way and the one I use is to apply the silicone on the
outside of the spring from top to bottom. Make it at least 3/8" wide and 1/4"
tall. You need to give it some strength anbody by making it wide and tall enough
to work. I thin little bead is worthless. Work it in between the spring coils.
This is to dampen the vibration to the spring and help prevent premature spring
breakage and help with the wear I just mentioned above.
I have 720 hrs on my plane and they are worn half way through on 3 springs and
a quarter the way through on the others.
p.s.
You can have faster exhaust spring wear so these should always be checked as the
engine builds time, but I usually see the problem right around 700-800 hrs.
Just keep an eye on yours.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340277#340277
Message 4
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All,
In the past I have run my 912UL without plugs and or wires not
connected to fill gas lines and bring up oil press. didn't know
it was a no no.
If I have caused a problem what would the symptoms be?
--------
Vic
912ul Xtra
Maine
Too old to cut the mustard but not the cheese.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340279#340279
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| Subject: | Re: Exhaust spring wear |
I replaced my springs last summer because they were worn quite a bit
nearly 1/2 through (maybe 580 hours). I had one of the new springs
break on my tripthis year to Sun N Fun. I had the silicon and safety
wire on the springs so they held until I noticed the broken spring
immediately upon arriving home. I'm guessing that I damaged the spring
with my vice grips when I installed it. Probably gouged the spring (or
the tornado did it. ;>)
Pete
Kitfox III , (early 912 going on 650 hours)
On 5/18/2011 8:40 AM, Roger Lee wrote:
> --> RotaxEngines-List message posted by: "Roger Lee"<ssadiver1@yahoo.c
om>
>
> Hi All,
>
> While I was doing another rubber hose replacement on a relatively highe
r time plane I noticed the springs are worn almost half way through where
they connect over the loop on the exhaust pipe and muffler. I have seen
this many times before and had forgot to mention something before. They d
o not need to be worn all the way through before they just break off and
you will never know when it will fail. I used to own a Kolb MK III a lon
g time ago and one did break before I caught it at 800 hrs. All the Rotax
912's have spring wear. When your plane gets to approximately 800 hrs. y
ou need to toss the 8 exhaust springs and replace them. The vibration can
and will eat right through the spring hook. You don't have to take anyth
ing else off, just pull the springs. Safety wire them and then re-apply t
he high temp silicone on the spring. There are two ways to apply silicone
=2E The first way is to actually fill the inside of the spring with silic
one. The second way and the one I use is to !
> apply the silicone on the outside of the spring from top to bottom. M
ake it at least 3/8" wide and 1/4" tall. You need to give it some strengt
h anbody by making it wide and tall enough to work. I thin little bead is
worthless. Work it in between the spring coils. This is to dampen the vi
bration to the spring and help prevent premature spring breakage and help
with the wear I just mentioned above.
>
> I have 720 hrs on my plane and they are worn half way through on 3 spri
ngs and a quarter the way through on the others.
>
> p.s.
> You can have faster exhaust spring wear so these should always be check
ed as the engine builds time, but I usually see the problem right around
700-800 hrs. Just keep an eye on yours.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Repair Center
> Home 520-574-1080 TRY HOME FIRST
> Cell 520-349-7056
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=340277#340277
>
>
===========
===========
===========
===========
>
>
Message 6
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| Subject: | Re: Exhaust spring wear |
Hi Roger -
My springs don't last anywhere near as long - usually about 150 hrs, even w
ith high temp silicone. Even though I keep my Drifter hangared, the springs
rust. I think it's because we're on the rainy side of the Oregon Cascades,
with lots of humidity. Checking them is part of my pre-flight, and I chang
e them at every annual.
Arty Trost
Maxair Drifter
Sandy, Oregon
www.LessonsFromTheEdge.com/uladventure2009.htm
=0A
=0A
--- On Wed, 5/18/11, Roger Lee <ssadiver1@yahoo.com> wrote:
Hi All,
While I was doing another rubber hose replacement on a relatively higher ti
me plane I noticed the springs are worn almost half way through where they
connect over the loop on the exhaust pipe and muffler. I have seen this man
y times before and had forgot to mention something before. They do not need
to be worn all the way through before they just break off and you will nev
er know when it will fail. I used to own a Kolb MK III- a long time ago a
nd one did break before I caught it at 800 hrs. All the Rotax 912's have sp
ring wear. When your plane gets to approximately 800 hrs. you need to toss
the 8 exhaust springs and replace them. The vibration can and will eat righ
t through the spring hook. You don't have to take anything else off, just p
ull the springs. Safety wire them and then re-apply the high temp silicone
on the spring. There are two ways to apply silicone. The first way is to ac
tually fill the inside of the spring with silicone. The second way
and the one I use is to !
apply the silicone on the outside of the spring from top to bottom. Make i
t at least 3/8" wide and 1/4" tall. You need to give it some strength anbod
y by making it wide and tall enough to work. I thin little bead is worthles
s. Work it in between the spring coils. This is to dampen the vibration to
the spring and help prevent premature spring breakage and help with the wea
r I just mentioned above.
I have 720 hrs on my plane and they are worn half way through on 3 springs
and a quarter the way through on the others.
p.s.
You can have faster exhaust spring wear so these should always be checked a
s the engine builds time, but I usually see the problem right around 700-80
0 hrs. Just keep an eye on yours.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
Home 520-574-1080- TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340277#340277
le, List Admin.
Message 7
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| Subject: | Fwd: Kolb-List: hanger break-in |
-------- Original Message --------
Subject: Kolb-List: hanger break-in
From: Ralph B <rstar447@gmail.com>
Thought you guys might be interested in this posted on the Kolb-List.
--> Kolb-List message posted by: "Ralph B"<rstar447@gmail.com>
I have some sad news to report. Mark's hanger at Forest Lake (25D in Minnesota)
was broken into last night and my Kolbra was targeted. The thieves stole the
engine, battery, aircraft seatbelts, and all avionics by unbolting and cutting
off the engine cable and unscrewing the panel and cutting off the wires to all
the instruments. Mark's large snowblower, tools, and battery charger were also
stolen. Mark just finished building his new RANS S-7 and he is worried that
his fuel may have been compromised although his airplane looked intact.
They got in through the locked door and then opened the bi-fold hanger door to
bring a hoist and vehicle into the hanger. This was all done under the cover of
darkness. Mark called the police this morning and they have the engine serial
number (#4400582). The Warp Drive tapered prop was also stolen (#T9433). The
engine had a Titan exhaust system with a specially-made prop spacer. This polished
aluminum prop spacer is very large and is one-of-a-kind.
If anyone has any information on this please contact me or local law enforcement
(651-325-6461 Forest Lake Police Department). Please be on the lookout for anyone
who has recently acquired a used 912UL 80hp engine. The instruments, include
an EIS, transponder, Microair radio, ASI, altimeter, and compass.
I would appreciate it if you could forward this to other lists that I am not aware
of.
Here are some pictures ...
Thanks for any information about this theft,
Ralph Burlingame
Mound, Minnesota
--------
Ralph B
Original Firestar 447
N91493 E-AB
1000 hours
24 years flying it
Kolbra 912UL
N20386
3 years flying it
150 hrs
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340179#340179
Attachments:
http://forums.matronics.com//files/what_the_panel_looked_like__786.jpg
http://forums.matronics.com//files/missing_panel__174.jpg
http://forums.matronics.com//files/missing_engine__101.jpg
http://forums.matronics.com//files/kolbra_engine_stolen__104.jpg
http://forums.matronics.com//files/everything_gone__837.jpg
Message 8
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| Subject: | Kolb-List: hanger break-in |
-
Tried to send this before but went back to Kolb List.
-> Kolb-List message posted by: "Ralph B" <rstar447@gmail.com>
I have some sad news to report. Mark's hanger at Forest Lake (25D in
Minnesota) was broken into last night and my Kolbra was targeted. The
thieves stole the engine, battery, aircraft seatbelts, and all avionics
by unbolting and cutting off the engine cable and unscrewing the panel
and cutting off the wires to all the instruments. Mark's large
snowblower, tools, and battery charger were also stolen. Mark just
finished building his new RANS S-7 and he is worried that his fuel may
have been compromised although his airplane looked intact.
They got in through the locked door and then opened the bi-fold hanger
door to bring a hoist and vehicle into the hanger. This was all done
under the cover of darkness. Mark called the police this morning and
they have the engine serial number (#4400582). The Warp Drive tapered
prop was also stolen (#T9433). The engine had a Titan exhaust system
with a specially-made prop spacer. This polished aluminum prop spacer is
very large and is one-of-a-kind. If anyone has any information on this
please contact me or local law enforcement (651-325-6461 Forest Lake
Police Department). Please be on the lookout for anyone who has recently
acquired a used 912UL 80hp engine. The instruments, include an EIS,
transponder, Microair radio, ASI, altimeter, and compass.
I would appreciate it if you could forward this to other lists that I
am not aware of.
Here are some pictures ...
Thanks for any information about this theft,
Ralph Burlingame
Mound, Minnesota
--------
Ralph B
Original Firestar 447
N91493 E-AB
1000 hours
24 years flying it
Kolbra 912UL
N20386
3 years flying it
150 hrs
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340179#340179
Attachments:
http://forums.matronics.com//files/what_the_panel_looked_like__786.jpg
http://forums.matronics.com//files/missing_panel__174.jpg
http://forums.matronics.com//files/missing_engine__101.jpg
http://forums.matronics.com//files/kolbra_engine_stolen__104.jpg
http://forums.matronics.com//files/everything_gone__837.jpg
Message 9
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| Subject: | Re: Exhaust spring wear |
RE Spring breakage...
I wonder if these springs would be any better than the Rotax springs: http://jbmindustries.com/ROTAX.htm
Their two-stroke carb/plug boots, are WAY better than the crappy Rotax boots.
--
Bob Comperini
e-mail: bob@fly-ul.com
WWW: http://www.fly-ul.com
Message 10
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Vic, If your ignitions are still working you got away with it. There's a
diode in the circuitry that takes the current when a plug tries to fire
ungrounded and gets cooked. With it gone the ignition will be dead and since
it's encapsulated the only fix is to replace the ignition module.
Rick Girard
On Wed, May 18, 2011 at 8:46 AM, Vic Peters <vicsv@myfairpoint.net> wrote:
> vicsv@myfairpoint.net>
>
> All,
> In the past I have run my 912UL without plugs and or wires not
> connected to fill gas lines and bring up oil press. didn't know
> it was a no no.
> If I have caused a problem what would the symptoms be?
>
> --------
> Vic
> 912ul Xtra
> Maine
> Too old to cut the mustard but not the cheese.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=340279#340279
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 11
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That's interesting, so is the diode suppose to protect the circuitry? If
so it doesn't seem well thought out.
Gordon
----- Original Message -----
From: Richard Girard
To: rotaxengines-list@matronics.com
Sent: Wednesday, May 18, 2011 12:30 PM
Subject: Re: RotaxEngines-List: Mag Ground
Vic, If your ignitions are still working you got away with it. There's
a diode in the circuitry that takes the current when a plug tries to
fire ungrounded and gets cooked. With it gone the ignition will be dead
and since it's encapsulated the only fix is to replace the ignition
module.
Rick Girard
On Wed, May 18, 2011 at 8:46 AM, Vic Peters <vicsv@myfairpoint.net>
wrote:
<vicsv@myfairpoint.net>
All,
In the past I have run my 912UL without plugs and or wires not
connected to fill gas lines and bring up oil press. didn't know
it was a no no.
If I have caused a problem what would the symptoms be?
--------
Vic
912ul Xtra
Maine
Too old to cut the mustard but not the cheese.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340279#340279
==========
-List"
target="_blank">http://www.matronics.com/Navigator?RotaxEngines-List
==========
http://forums.matronics.com
==========
le, List Admin.
="_blank">http://www.matronics.com/contribution
==========
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be
unhappy.
- Groucho Marx
Message 12
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Gordon, No it's just the part of the module that gets damaged if it attempts
to fire an ungrounded spark plug.
Rick
On Wed, May 18, 2011 at 11:51 AM, Gordon <cscsail@gmavt.net> wrote:
> That's interesting, so is the diode suppose to protect the circuitry? If
> so it doesn't seem well thought out.
> Gordon
>
> ----- Original Message -----
> *From:* Richard Girard <aslsa.rng@gmail.com>
> *To:* rotaxengines-list@matronics.com
> *Sent:* Wednesday, May 18, 2011 12:30 PM
> *Subject:* Re: RotaxEngines-List: Mag Ground
>
> Vic, If your ignitions are still working you got away with it. There's a
> diode in the circuitry that takes the current when a plug tries to fire
> ungrounded and gets cooked. With it gone the ignition will be dead and since
> it's encapsulated the only fix is to replace the ignition module.
>
> Rick Girard
>
> On Wed, May 18, 2011 at 8:46 AM, Vic Peters <vicsv@myfairpoint.net> wrote:
>
>> vicsv@myfairpoint.net>
>>
>> All,
>> In the past I have run my 912UL without plugs and or wires not
>> connected to fill gas lines and bring up oil press. didn't know
>> it was a no no.
>> If I have caused a problem what would the symptoms be?
>>
>> --------
>> Vic
>> 912ul Xtra
>> Maine
>> Too old to cut the mustard but not the cheese.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=340279#340279
>>
>>
>>
>>
>>
>>
>>
>> ==========
>> -List" target="_blank">
>> http://www.matronics.com/Navigator?RotaxEngines-List
>> ==========
>> http://forums.matronics.com
>> ==========
>> le, List Admin.
>> ="_blank">http://www.matronics.com/contribution
>> ==========
>>
>>
>>
>>
>
>
> --
> Zulu Delta
> Mk IIIC
> Thanks, Homer GBYM
>
> It isn't necessary to have relatives in Kansas City in order to be unhappy.
> - Groucho Marx
>
>
> *
>
> href="http://www.matronics.com/Navigator?RotaxEngines-List">http://www.matronics.com/Navigator?RotaxEngines-List
> href="http://forums.matronics.com">http://forums.matronics.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/c*
>
> *
>
> *
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 13
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| Subject: | TLR46a TCU Program |
I have the correct program for the serial number of my Rotax 914 however I am having
problems connecting to the TCU. I have tried the following from 2 different
laptops and 2 different USB to DB9 serial plugs and 2 different OS (XP &
Windows 7) 2 x different cables (straight and crossover) and all combinations
in between and continue to get the dreaded
ERROR: Serial I/O continue with any key.. Battery is up to whack.
The Rotax documentation tells me nothing about what ports speeds the serial port
should be set at - default is 9600 whether the cable should be straight or crossed
over.
Would appreciate any pointers from anybody who has used this program.
I am setting up my 914 (new) and having disconnected the wastegate servo unit
need to re-calibrate as I cannot pull maximum manifold pressure as the waste gate
is opening as I go up in revs. The Australian/New Zealand agents tell me
that I need to re-calibrate as a starter.
I thought I knew computers but this is frustrating the !@# out of me.
Thanks
Peter Armstrong
Auckland, New Zealand
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=340348#340348
Message 14
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| Subject: | Re: TLR46a TCU Program |
Hi Peter
perhaps not a great help but a good number of usb to serial adaptors are not
compatible, I use a old Windows 98 now with XP laptop with built in serial
with no problem, I would try and Purchase or borrow a old machine from
somebody as a way around your problem,
Regards
Ivor
G-IVER
On 19 May 2011 03:47, pestar <peter@reivernet.com> wrote:
>
> I have the correct program for the serial number of my Rotax 914 however I
> am having problems connecting to the TCU. I have tried the following from 2
> different laptops and 2 different USB to DB9 serial plugs and 2 different OS
> (XP & Windows 7) 2 x different cables (straight and crossover) and all
> combinations in between and continue to get the dreaded
>
> ERROR: Serial I/O continue with any key.. Battery is up to whack.
>
> The Rotax documentation tells me nothing about what ports speeds the serial
> port should be set at - default is 9600 whether the cable should be straight
> or crossed over.
>
> Would appreciate any pointers from anybody who has used this program.
>
> I am setting up my 914 (new) and having disconnected the wastegate servo
> unit need to re-calibrate as I cannot pull maximum manifold pressure as the
> waste gate is opening as I go up in revs. The Australian/New Zealand agents
> tell me that I need to re-calibrate as a starter.
>
> I thought I knew computers but this is frustrating the !@# out of me.
>
> Thanks
>
> Peter Armstrong
> Auckland, New Zealand
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=340348#340348
>
>
Message 15
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| Subject: | Re: TLR46a TCU Program |
pestar a crit :
>
> I have the correct program for the serial number of my Rotax 914 however I am
having problems connecting to the TCU. I have tried the following from 2 different
laptops and 2 different USB to DB9 serial plugs and 2 different OS (XP
& Windows 7) 2 x different cables (straight and crossover) and all combinations
in between and continue to get the dreaded
>
> ERROR: Serial I/O continue with any key.. Battery is up to whack.
>
> The Rotax documentation tells me nothing about what ports speeds the serial port
should be set at - default is 9600 whether the cable should be straight or
crossed over.
>
> Would appreciate any pointers from anybody who has used this program.
>
> I am setting up my 914 (new) and having disconnected the wastegate servo unit
need to re-calibrate as I cannot pull maximum manifold pressure as the waste
gate is opening as I go up in revs. The Australian/New Zealand agents tell me
that I need to re-calibrate as a starter.
>
Peter,
Last year I used an old desktop and - I seem to remember - a straight
cable. Will tell you what the OS was when I go to the hangar. During the
build, my laptop had a serial port and XP pro OS.
The calibration is for telling the system what the throttle position is,
nothing to do with the wastegate servo and cable. We changed the
wastegate cable last summer, and had no problem adjusting it without
recalibration.
You may want to ask NP at Dyn'Aero for the correct cable procedure.
Best regards,
--
Gilles
http://contrails.free.fr
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