Today's Message Index:
----------------------
1. 04:58 AM - Re: More on ethanol (catz631@aol.com)
2. 05:02 AM - Re: oozing valve covers (catz631@aol.com)
3. 05:12 AM - Re: oozing valve covers (Thom Riddle)
4. 05:54 AM - Re: oozing valve covers (rampil)
5. 06:32 AM - Re: oozing valve covers (Ollie Washburn)
6. 06:56 AM - Re: More on ethanol (lucien)
7. 07:07 AM - Re: oozing valve covers (lucien)
8. 08:06 AM - Re: oozing valve covers (Roger Lee)
9. 08:40 AM - Re: oozing valve covers (lucien)
10. 08:52 AM - Re: oozing valve covers (Thom Riddle)
11. 09:29 AM - Re: oozing valve covers (Roger Lee)
12. 10:56 AM - Exhaust wrap/insulation ? (Geoff Heap)
13. 11:42 AM - Re: Exhaust wrap/insulation ? (Richard Girard)
14. 11:43 AM - Re: Exhaust wrap/insulation ? (Bob Borger)
15. 01:39 PM - Re: Exhaust wrap/insulation ? (Roger Lee)
16. 04:44 PM - Re: Re: Exhaust wrap/insulation ? (Richard Girard)
17. 05:03 PM - Re: More on ethanol (Noel Loveys)
18. 05:05 PM - Re: oozing valve covers (Noel Loveys)
19. 05:45 PM - Re: More on ethanol (Richard Girard)
20. 05:51 PM - Re: oozing valve covers (Richard Girard)
21. 06:00 PM - Re: Re: oozing valve covers (Noel Loveys)
22. 06:12 PM - Re: Exhaust wrap/insulation ? (Noel Loveys)
23. 07:49 PM - Re: Exhaust wrap/insulation ? (Roger Lee)
24. 09:59 PM - Re: Re: Exhaust wrap/insulation ? (Kevin Klinefelter)
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| Subject: | Re: More on ethanol |
Dave,
You are a lucky man. This ethanol is creating real havoc with my British
cars. They backfire,buck ,snort, and have a hell of a time till they get up
to speed. Never had that problem before ethanol ! I have had to add octane
booster to my Rotax 912 fuel to keep it from desieling on shutdown. I will now
make that a regular additive. I think if you treat the ethanol like milk
and throw it out (or burn it) before it sours,you will be ok.
Dick Maddux
Kitfox 4
912 UL
Milton,Fl
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| Subject: | Re: oozing valve covers |
Roger,
I have the oozing on my 912UL. Like you said, it is not much, but it is
there and I wipe it down whenever I have the cowl open. I never thought much
about it as my prior engines were Lyc/Cont which is kind of like a Harley and
that generally came with the territory.
Dick Maddux
Kitfox 4
Milton,Fl
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| Subject: | Re: oozing valve covers |
Of the three airplanes I've owned with 912UL engines and the many I've worked on,
never once had the oil ooze problem you asked about.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x31
Write a wise saying and your name will live forever.
- Anonymous
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282199#282199
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| Subject: | Re: oozing valve covers |
I have opened my 912 valve covers a few times and I have not yet
had and leak or seepage.
On the other hand, I do have a small ooze from the front of my
gear box, just enough that I need to clean my windscreen every
4-5 hours
--------
Ira N224XS
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http://forums.matronics.com/viewtopic.php?p=282207#282207
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| Subject: | Re: oozing valve covers |
Yes, all 4 of mine ooze oil. I put in all new O rings at Rotax's hefty price
but they still leaked. Haven't tried the sandpaper route yet. 600+ hrs on
the engine.
Ollie Central FL
On Mon, Jan 18, 2010 at 6:21 PM, Roger Lee <ssadiver1@yahoo.com> wrote:
>
> Hi Guys,
>
> I'm doing a little survey. How many of you with a 912 ul, uls or 914 have
> one or more valve covers that ooze oil? Not necessarily a drip, but a little
> oozing so when you wipe the bottom of the cover it leaves oil on your
> finger. You may not even see it at times or if you have a cowling the high
> speed air coming through the cowling just makes a little mess on the belly
> of the plane. If you can let me know this info it is going to Rotax.
>
> Thanks,
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Repair Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=282149#282149
>
>
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| Subject: | Re: More on ethanol |
[quote="blumax008(at)aol.com"]In a message dated 1/18/2010 6:47:36 A.M. Eastern
Standard Time, dave@cfisher.com writes:
> I have 8 other aircraft at my strip that all are 2 strokes and use regular
grade gas with ethanol or what ever the cheapest station sells. No problems
yet.
>
Keep your fingers crossed. You're an exception to the rule. Are you using any
sort of additive?
> [b]
The 2-strokes are a lot more permissive about fuel, in my experience. Kind of like
turbines, if it burns the motor will run.... Well, not that permissive but,
generally, they'll run fine on any 87 or higher octane gas.
Our 4 strokes are fussier, my 912ULS has dieseled on me once or twice when I got
a bad tank of (still premium) gas (which had no ethanol in it BTW).
But I've been running E10 premium in my 912ULS for about a year now after pure
gas finally went away forever in my area last spring. No problems at all even
up to 10,000' MSL.....
LS
--------
LS
Titan II SS
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| Subject: | Re: oozing valve covers |
Don't mean to jump in, but want to ask: Back in the bad old days when I lived under
the hoods of my cars, I always took leaking valve covers to indicate possible
warping of the heads themselves rather than the covers. Especially on my
air-cooled motorcycles, this was the case more often than not.
I'd be curious to know if in the cases where the covers are starting to leak if
any flatness measurements are being taken on the heads as well to see if this
might be the cause?
Fortunately, my 912 is still leak-free at about 380 hours. But of course, I'm still
on pins and needles waiting for the day when something starts dribbling out
somewhere...... and how much that'll cost me...... ;)
LS
--------
LS
Titan II SS
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| Subject: | Re: oozing valve covers |
These oozing issues seem to be popping up when you get some hours on the plane.
If you try the sanding method you will see the uneven surface of the valve cover.
Once you make a few strokes you will see shiny spots where the sandpaper
has done its job, but you will also see some dull spots and these are low spots
on the cover casting. Sand until the entire mating surface is shiny. It doesn't
take a number of strokes. This isn't a sure fire fix either. We are trying
a few sealants to see which works well. Loctite 574 and 5910 show a lot of promise.
I'll keep you posted. I am trying to get a better handle on how far reaching
the oozing is on the valve covers and we are trying to make sure Rotax stays
informed..
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282233#282233
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| Subject: | Re: oozing valve covers |
Roger Lee wrote:
> These oozing issues seem to be popping up when you get some hours on the plane.
If you try the sanding method you will see the uneven surface of the valve
cover. Once you make a few strokes you will see shiny spots where the sandpaper
has done its job, but you will also see some dull spots and these are low spots
on the cover casting. Sand until the entire mating surface is shiny. It doesn't
take a number of strokes. This isn't a sure fire fix either. We are trying
a few sealants to see which works well. Loctite 574 and 5910 show a lot of
promise. I'll keep you posted. I am trying to get a better handle on how far reaching
the oozing is on the valve covers and we are trying to make sure Rotax
stays informed..
Ah, ok so unevenness is showing up on the cover then?
also, speaking of leaks..... Are there other places that the 912 series eventually
springs leaks over time? I'm curious about if they do start to leak when they
get on in hours and where the leaks typically occur.
Like I said, I'm used to my old cars and motorcycles where oil coming out of somewhere
is just normal after a while (not to mention looking under the cowling
of a lyc/continental here and there).....
Plus a friend of mine has a 912ULS with about 600 hours on it with a considerable
leak at the front. Most of it seems to be coming out where the starter attaches
to the housing on the engine. It's bad enough to wet the engine and get onto
the plane after a while.
He's going to pull it to have it repaired soon (and I plan to help him pull the
motor), but I'm curious what I'm in for too as I put hours on mine ;)
Thanks,
LS
--------
LS
Titan II SS
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| Subject: | Re: oozing valve covers |
None of my 912UL engines, each with over 700 hours, ever had any leaks anywhere.
That said, I was super conscientious about monitoring temperatures and making
sure none ever got near the max allowable.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x31
Write a wise saying and your name will live forever.
- Anonymous
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282247#282247
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| Subject: | Re: oozing valve covers |
The starter does have an "O" ring and it's fairly easy to replace. Part 250-140.
It is a 24.4 mm X 3.10 mm. Maryland Metrics is a good place to buy metric "O"
rings if you aren't locked into genuine Rotax parts and 1/3 the price. Very
unusual for this to part to leak. Check the screws and see if they are tight.
https://ssl.perfora.net/metricshop.com/rfq.htm
http://mdmetric.com/or/fpm80oringsizelisting.pdf
The only places I have really seen leak are the valve covers (usually an ooze),
the oil cooler where the lines attach (these nuts need a wrench put on them once
in a while to double check the tightness) and the gearbox (just needs to be
re-sealed with Loctite 5910).
I have tracked down a few oil seeps that was thought to be coming from one place
and it was really from somewhere else because of the high speed air flowing
through and depositing it somewhere else. This is quite common to to miss this
diagnosis.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282256#282256
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| Subject: | Exhaust wrap/insulation ? |
Hi Guys. I'm worried about the proximity of my exhaust to Coolant tubing
and cowl. Has anyone used something to hold the heat in. A wrap or whatever........Thanks.....Geoff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282280#282280
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| Subject: | Re: Exhaust wrap/insulation ? |
Just my personal opinion, but I'd put firesleeve on the coolant line rather
than wrap the exhaust. An exhaust wrap will hold moisture on the pipes and
cause them to corrode. Even if it doesn't destroy it, you still run the risk
of an exhaust leak that could let carbon monoxide into the cockpit.
For what it's worth.
Rick Girard
On Tue, Jan 19, 2010 at 12:55 PM, Geoff Heap <stol10@comcast.net> wrote:
>
> Hi Guys. I'm worried about the proximity of my exhaust to Coolant tubing
> and cowl. Has anyone used something to hold the heat in. A wrap or
> whatever........Thanks.....Geoff
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=282280#282280
>
>
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| Subject: | Re: Exhaust wrap/insulation ? |
Geoff,
I used Thermoflex tubing over the coolant and oil lines that were close to the
exhaust.
http://www.aircraftspruce.com/catalog/eppages/thermoflex.php
Seems to work quite well.
Bob Borger
Europa XS Monowheel, Intercooled Rotax 914, Airmaster C/S Prop
http://www.europaowners.org/N914XL
On Tuesday, January 19, 2010, at 12:55PM, "Geoff Heap" <stol10@comcast.net> wrote:
>
>Hi Guys. I'm worried about the proximity of my exhaust to Coolant tubing
>and cowl. Has anyone used something to hold the heat in. A wrap or whatever........Thanks.....Geoff
Message 15
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| Subject: | Re: Exhaust wrap/insulation ? |
You can use firesleeve over any line to help reduce radiated or convected heat.
All your oil lines and fuel lines should have this anyway. You can use header
wrap without any issues on the Rotax stainless steel exhaust. Carbonization that
some talk about is an issue with standard steel with more iron content, but
not the same for stainless pipes with more nickel and chrome. Many aircraft
have header wrap. I have it on my CT and have had for 2.5 years and 400 hrs. I
use it as do many CT'ers for the radiated heat on our wires and lines. If you
ever get a break (from vibration) then the wrap is fragile enough and it will
shred where ever the break is. You won't have to guess where a break occurs.
I have seen many Rotax exhaust breaks and most all are from vibration or too much
side stress and vibration when it was installed. None of these had any wrap.
You usually don't get a pin hole type leak with stainless and a side load.
It snaps all the way across and you can hear it in the cabin with a throatier
exhaust sound. Header wrap on an exhaust pipe should not affect any carbon monoxide
in a cabin. Two different animals. Hot exhaust wrap is actually put on damp.
It won't hold the moister and if you were to soak it down it burns off in
a minute after the engine is running. You can buy 50' rolls of header wrap it
places like Checker Auto, Auto Zone or PepBoys. It's about $45-$50. You will
have some left over if you wrap all four pipes. Use a hose clamp on each end.
If you have EGT probes absolutely do not let the wrap cover them or place the
probe over the wrap. It will effect your EGT's and make them higher and fluctuate
by 50-100F. Only over wrap the edges by 1/4"-3/8", you do not want to over
wrap each wind by 1/2 or it will retain too much heat.. Wrap all the way down
and actually under the exhaust springs around the exhaust muffler knuckle. Then
put a hose clamp there. This is also a good way to cut any blow by exhaust
gases down at the knuckle if you have any. Wrap up to them and then start on
the other !
side of
the probe.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=282315#282315
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| Subject: | Re: Exhaust wrap/insulation ? |
Just curious, Roger, how do you get into the wrap to put anti-sieze in the
slip joints?
Rick Girard
On Tue, Jan 19, 2010 at 3:38 PM, Roger Lee <ssadiver1@yahoo.com> wrote:
>
> You can use firesleeve over any line to help reduce radiated or convected
> heat. All your oil lines and fuel lines should have this anyway. You can use
> header wrap without any issues on the Rotax stainless steel exhaust.
> Carbonization that some talk about is an issue with standard steel with more
> iron content, but not the same for stainless pipes with more nickel and
> chrome. Many aircraft have header wrap. I have it on my CT and have had for
> 2.5 years and 400 hrs. I use it as do many CT'ers for the radiated heat on
> our wires and lines. If you ever get a break (from vibration) then the wrap
> is fragile enough and it will shred where ever the break is. You won't have
> to guess where a break occurs. I have seen many Rotax exhaust breaks and
> most all are from vibration or too much side stress and vibration when it
> was installed. None of these had any wrap. You usually don't get a pin hole
> type leak with stainless and a side load. It snaps all the way across and
> you can hear it in t!
> he cabin with a throatier exhaust sound. Header wrap on an exhaust pipe
> should not affect any carbon monoxide in a cabin. Two different animals. Hot
> exhaust wrap is actually put on damp. It won't hold the moister and if you
> were to soak it down it burns off in a minute after the engine is running.
> You can buy 50' rolls of header wrap it places like Checker Auto, Auto Zone
> or PepBoys. It's about $45-$50. You will have some left over if you wrap all
> four pipes. Use a hose clamp on each end. If you have EGT probes absolutely
> do not let the wrap cover them or place the probe over the wrap. It will
> effect your EGT's and make them higher and fluctuate by 50-100F. Only over
> wrap the edges by 1/4"-3/8", you do not want to over wrap each wind by 1/2
> or it will retain too much heat.. Wrap all the way down and actually under
> the exhaust springs around the exhaust muffler knuckle. Then put a hose
> clamp there. This is also a good way to cut any blow by exhaust gases down
> at the knuckle !
> if you have any. Wrap up to them and then start on the other !
> side of
>
> the probe.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Repair Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=282315#282315
>
>
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I've been checking octane boosters and have found that most of them are the
next thing to usless... What are you using for octane boost? BTW if your
English cars are early ones with sidedraft carbs etc you may want to check
the rubber in the carbs etc as they used a natural black rubber that is not
ethanol resistant.
Noel
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of
catz631@aol.com
Sent: January 19, 2010 9:27 AM
Subject: Re: RotaxEngines-List: More on ethanol
Dave,
You are a lucky man. This ethanol is creating real havoc with my British
cars. They backfire,buck ,snort, and have a hell of a time till they get up
to speed. Never had that problem before ethanol ! I have had to add octane
booster to my Rotax 912 fuel to keep it from desieling on shutdown. I will
now make that a regular additive. I think if you treat the ethanol like milk
and throw it out (or burn it) before it sours,you will be ok.
Dick Maddux
Kitfox 4
912 UL
Milton,Fl
Message 18
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| Subject: | oozing valve covers |
Not sure on the Rotax but on the lycoming when they give a torque range it
is always recommended that you use the lowest possible torque. That keeps
the metal in the engine from stretching or warping.
Noel
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of
catz631@aol.com
Sent: January 19, 2010 9:32 AM
Subject: Re: RotaxEngines-List: oozing valve covers
Roger,
I have the oozing on my 912UL. Like you said, it is not much, but it is
there and I wipe it down whenever I have the cowl open. I never thought much
about it as my prior engines were Lyc/Cont which is kind of like a Harley
and that generally came with the territory.
Dick Maddux
Kitfox 4
Milton,Fl
Message 19
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| Subject: | Re: More on ethanol |
Noel, I came to the same conclusion when I tried about every brand availabl
e
on the shelves of the auto parts store in my Shovelhead Harley. Nothing but
Coppertone for spark plugs.
Rick Girard
On Tue, Jan 19, 2010 at 7:02 PM, Noel Loveys <noelloveys@yahoo.ca> wrote:
> I=92ve been checking octane boosters and have found that most of them ar
e
> the next thing to usless... What are you using for octane boost? BTW i
f
> your English cars are early ones with sidedraft carbs etc you may want to
> check the rubber in the carbs etc as they used a natural black rubber tha
t
> is not ethanol resistant.
>
>
> Noel
>
>
> *From:* owner-rotaxengines-list-server@matronics.com [mailto:
> owner-rotaxengines-list-server@matronics.com] *On Behalf Of *
> catz631@aol.com
> *Sent:* January 19, 2010 9:27 AM
>
> *To:* rotaxengines-list@matronics.com
> *Subject:* Re: RotaxEngines-List: More on ethanol
>
>
> Dave,
>
> You are a lucky man. This ethanol is creating real havoc with my British
> cars. They backfire,buck ,snort, and have a hell of a time till they get
up
> to speed. Never had that problem before ethanol ! I have had to add octan
e
> booster to my Rotax 912 fuel to keep it from desieling on shutdown. I wil
l
> now make that a regular additive. I think if you treat the ethanol like m
ilk
> and throw it out (or burn it) before it sours,you will be ok.
>
> Dick Maddux
>
> Kitfox 4
>
> 912 UL
>
> Milton,Fl
>
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| Subject: | Re: oozing valve covers |
For what it's worth, a very long time ago while P & M ing about leaky rocker
box screws an old time Harley mechanic told me to always make sure the
o-ring groove was absolutely clean and dry. His reasoning was that fluids
are incompressible and when caught behind the o-ring, the oil wouldn't give
but the o-ring would, creating a path for a leak to start. Seems to work no
matter the reasoning.
Rick Girard
On Tue, Jan 19, 2010 at 7:04 PM, Noel Loveys <noelloveys@yahoo.ca> wrote:
> Not sure on the Rotax but on the lycoming when they give a torque range
> it is always recommended that you use the lowest possible torque. That
> keeps the metal in the engine from stretching or warping.
>
>
> Noel
>
>
> *From:* owner-rotaxengines-list-server@matronics.com [mailto:
> owner-rotaxengines-list-server@matronics.com] *On Behalf Of *
> catz631@aol.com
> *Sent:* January 19, 2010 9:32 AM
> *To:* rotaxengines-list@matronics.com
> *Subject:* Re: RotaxEngines-List: oozing valve covers
>
>
> Roger,
>
> I have the oozing on my 912UL. Like you said, it is not much, but it is
> there and I wipe it down whenever I have the cowl open. I never thought much
> about it as my prior engines were Lyc/Cont which is kind of like a Harley
> and that generally came with the territory.
>
> Dick Maddux
>
> Kitfox 4
>
> Milton,Fl
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?RotaxEngines-List*
>
> **
>
> **
>
> **
>
> *http://forums.matronics.com*
>
> **
>
> **
>
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Message 21
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| Subject: | Re: oozing valve covers |
If you want to see oil consumption and the more than occasional drop blowing
around just check out any radial!
Noel
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of lucien
Sent: January 19, 2010 1:10 PM
Subject: RotaxEngines-List: Re: oozing valve covers
Roger Lee wrote:
> These oozing issues seem to be popping up when you get some hours on the
plane. If you try the sanding method you will see the uneven surface of the
valve cover. Once you make a few strokes you will see shiny spots where the
sandpaper has done its job, but you will also see some dull spots and these
are low spots on the cover casting. Sand until the entire mating surface is
shiny. It doesn't take a number of strokes. This isn't a sure fire fix
either. We are trying a few sealants to see which works well. Loctite 574
and 5910 show a lot of promise. I'll keep you posted. I am trying to get a
better handle on how far reaching the oozing is on the valve covers and we
are trying to make sure Rotax stays informed..
Ah, ok so unevenness is showing up on the cover then?
also, speaking of leaks..... Are there other places that the 912 series
eventually springs leaks over time? I'm curious about if they do start to
leak when they get on in hours and where the leaks typically occur.
Like I said, I'm used to my old cars and motorcycles where oil coming out of
somewhere is just normal after a while (not to mention looking under the
cowling of a lyc/continental here and there).....
Plus a friend of mine has a 912ULS with about 600 hours on it with a
considerable leak at the front. Most of it seems to be coming out where the
starter attaches to the housing on the engine. It's bad enough to wet the
engine and get onto the plane after a while.
He's going to pull it to have it repaired soon (and I plan to help him pull
the motor), but I'm curious what I'm in for too as I put hours on mine ;)
Thanks,
LS
--------
LS
Titan II SS
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| Subject: | Exhaust wrap/insulation ? |
Exhaust wraps look great on motorcycles but they can cause a great increase
of internal temperatures.
Noel
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of Richard
Girard
Sent: January 19, 2010 4:10 PM
Subject: Re: RotaxEngines-List: Exhaust wrap/insulation ?
Just my personal opinion, but I'd put firesleeve on the coolant line rather
than wrap the exhaust. An exhaust wrap will hold moisture on the pipes and
cause them to corrode. Even if it doesn't destroy it, you still run the risk
of an exhaust leak that could let carbon monoxide into the cockpit.
For what it's worth.
Rick Girard
On Tue, Jan 19, 2010 at 12:55 PM, Geoff Heap <stol10@comcast.net> wrote:
Hi Guys. I'm worried about the proximity of my exhaust to Coolant tubing
and cowl. Has anyone used something to hold the heat in. A wrap or
whatever........Thanks.....Geoff
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| Subject: | Re: Exhaust wrap/insulation ? |
On our exhaust we are only covering about 15" of exhaust so it does not effect
EGT's at all. You wrap from the exhaust port at the cylinder and only down over
the knuckle by the springs. I have done many and have never had any issues or
complaints and I keep doing more as people keep requesting it. I have one to
do Jan. 30 from a guy out of San Antonio. I'll pull the engine and put on a firewall
blanket, Matco brakes, pull the wings for an inspection and an engine
inspection.
Just don't cover or have the wrap around the EGT probes. To apply anti-seize you
loosen the clamp at the knuckle slide the wrap up some and drop or pull away
the muffler an few inches. Then pull the wrap back the 1"-1.5" you moved it and
re-clamp. If you land and pull off your cowling would you grab your exhaust
pipe? Not with any common since no one would, but with the wrap I can put my
hand on it. They Mfg. of the wrap claims it reduces radiated heat by 70%. I don't
know how accurate that number is, but what a difference.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
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| Subject: | Re: Exhaust wrap/insulation ? |
so what is this wrap called? where canI get it?
----- Original Message -----
From: "Roger Lee" <ssadiver1@yahoo.com>
Sent: Tuesday, January 19, 2010 7:49 PM
Subject: RotaxEngines-List: Re: Exhaust wrap/insulation ?
>
> On our exhaust we are only covering about 15" of exhaust so it does not
> effect EGT's at all. You wrap from the exhaust port at the cylinder and
> only down over the knuckle by the springs. I have done many and have never
> had any issues or complaints and I keep doing more as people keep
> requesting it. I have one to do Jan. 30 from a guy out of San Antonio.
> I'll pull the engine and put on a firewall blanket, Matco brakes, pull the
> wings for an inspection and an engine inspection.
> Just don't cover or have the wrap around the EGT probes. To apply
> anti-seize you loosen the clamp at the knuckle slide the wrap up some and
> drop or pull away the muffler an few inches. Then pull the wrap back the
> 1"-1.5" you moved it and re-clamp. If you land and pull off your cowling
> would you grab your exhaust pipe? Not with any common since no one would,
> but with the wrap I can put my hand on it. They Mfg. of the wrap claims it
> reduces radiated heat by 70%. I don't know how accurate that number is,
> but what a difference.
>
> --------
> Roger Lee
> Tucson, Az.
> Light Sport Repairman - Maintenance Rated
> Rotax Repair Center
> 520-574-1080
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=282377#282377
>
>
>
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