Today's Message Index:
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1. 03:51 AM - Re: Nitrile Float Bowl Gasket (PHILLIPS I)
2. 05:05 AM - Re: High EGT's (Catz631@aol.com)
3. 05:06 AM - Re: High EGT's (Dan Billingsley)
Message 1
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| Subject: | Re: Nitrile Float Bowl Gasket |
I have also brought 4 to try out, I have always had a slight weepage/stain
around the bowl, and it would be nice to eliminate it,
ivor
On 25 May 2012 00:52, Robert Borger <rlborger@mac.com> wrote:
> Rotax 9xx folks,
>
> FWIW, I located a source of Nitrile float bowl gaskets for the Bing 64
> carbs on the Rotax 912 & 914 engines.
>
> Supposed to be superior to both the paper and cork gaskets:
>
>
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320625111138#ht_1255wt_1165
>
> I have ordered a pair of them to see how they will work and will let the
> lists know what I find out.
>
> Blue skies & tailwinds,
> Bob Borger
> Europa XS Tri, Rotax 914, Airmaster C/S Prop.
> Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP
> 3705 Lynchburg Dr.
> Corinth, TX 76208-5331
> Cel: 817-992-1117
> rlborger@mac.com
>
>
Message 2
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Worry ..No. Investigate yes. Some good tips here Dan.(Swapping probes,etc)
Also give Roger a call as he is very good on these engines.
In the 912 classes I attended,they specifically mentioned that EGT is not
a critical factor such as in a two stroke and don't put too much into
it.(Oil press,temps,etc are.)It will vary greatly with rpm, fuel mixture,etc
You could of course give Lockwood a call on their technical phone line
which I have done on occasion.
With the low time you have on your engine ,I think it is not likely (not
impossible) that you have a problem with the engine. The EGT indication
system COULD be at fault( or probe locations,etc)
Dick Maddux
912 UL
Milton,Fl
Message 3
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Thank you all for your replies and ideas. I was able to get to the airport
yesterday for a short time and pulled a couple plugs. The left side showed
the even tan/grey color and the right side (the hot indicated side) showed
a plug that was darker from the end of the threads to the electrodes. Didn'
t have enough time to pull any others, but that somewhat confirmed my senso
rs were not-lying to me. I called and spoke with Roger at length last nig
ht and he had some good thoughts on how to approach / troubleshoot...thanks
Roger!-=0AI know many put off the idea of being concerned with the EGT's
, however, I am certainly with Barry on this one. I installed these sensors
along with an engine monitor, they did their job, and I now know one side
of the engine is running 200F hotter than the other side. The Rotax manual
lists 1620F as the MAX and the highest temp I saw was 1635F (I went back an
d listened to my digital recording I call out my numbers into instead of wr
iting things down). I'm glad I had them hooked up as I can now look for a p
roblem before it becomes-catastrophic.=0AThanks to all again=0ADan=0AMesa
, AZ=0A=0A=0A=0A>________________________________=0A> From: FLYaDIVE <flyad
ive@gmail.com>=0A>To: rotaxengines-list@matronics.com =0A>Sent: Thursday, M
ay 24, 2012 6:13 PM=0A>Subject: Re: RotaxEngines-List: High EGT's=0A> =0A>
=0A>Dan:=0A>=0A>Run the engine in the manufactures suggested operational ra
nge. -=0A>Monitor the EGT & CHT(if you have them). -Yea, yea, yea, I kn
ow you are water cooled and all cylinders should be the same... SHOULD BE!
=0A>Do some tests as Richard suggested - This is to rule out the probes as
being a problem.=0A>BUT! -If you still see a 200 F differance between one
side of the engine and the other. -And personally even at lower RPM's -
There is something wrong when you have that high a EGT and with that wide o
f a temperature spread (200 F). -YES WORRY!=0A>Otherwise throw away the E
GT gauge and taHell with indicators --- Ignorance is bliss.=0A>=0A>=0A>Barr
y=0A>=0A>=0A>=0A>=0A>On Thu, May 24, 2012 at 7:42 AM, <Catz631@aol.com> wro
te:=0A>=0A>Dan,=0A>>-I wouldn't worry too much about the EGT's .Rpm's and
carb needle setting will have an effect on the readings=0A>>-You should
definately -not be cruising below 5000 rpm. The engine is designed to run
above 5000. I was taught this in the 3 Rotax engine courses I have attende
d...which I very strongly advise you to try to put in your schedule if you
want to maintain your engine properly.=0A>>----------
-------------------------
--------- =0A>>--------------
---------------------- Dick Mad
dux=0A>>----------------------
-------------- Fox 4=0A>>-------
-------------------------
---- Milton,Fl=0A>>ist" target="_blank">http://www.matronics.com/
Navigator?RotaxEngines-List=0Atp://forums.matronics.com=0A_blank">http://ww
====== =0A>=0A>
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