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                           RotaxEngines-List Digest Archive
                                      ---
                     Total Messages Posted Thu 03/17/11: 3
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Today's Message Index:
----------------------
 
     1. 03:46 AM - Re: 912 ULS oil leak  (Remi Guerner)
     2. 04:51 AM - Re: Purging 912ULS oil system with oil thermostat installed  (Catz631@aol.com)
     3. 05:46 AM - Re: Purging 912 not required?  (bjones@dmv.com)
 
 
 
________________________________  Message 1  _____________________________________


Time: 03:46:17 AM PST US
Subject: RotaxEngines-List: Re: 912 ULS oil leak
From: "Remi Guerner" <air.guerner@orange.fr>


Thank you Roger for your response. 
I have tried your first suggestion (retorquing the studs) in the past without success.
I will try it again using the latest torquing instructions from Rotax
but I doubt it will be effective.
Your second suggestion  is away from the point :  re-sealing the surface between
the cylinder barrel and the head would only help in case of hot gases leaking
from the combustion chamber, which is not what I experienced.   In my case,
I believe the leaking oil is coming from either the crankcase or from inside the
valve cover, then it flows along the cylinder studs and escape between the
barrel and the head. 
Regards
Remi


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=334159#334159


________________________________  Message 2  _____________________________________


Time: 04:51:10 AM PST US
From: Catz631@aol.com
Subject: Re: RotaxEngines-List: Purging 912ULS oil system with oil thermostat installed

Lucian,
 I bought a small low pressure regulator at Harbour Freight and made  my 
own kit for low air pressure on the oil tank. Attached it at the end of  the 
hose with a quick disconnect
 Also,I have done the valve lifter check on my engine at least 5  times 
because of the problem I was having with the prop flipping backwards about  3 
revolutions at shutdown.( I thought about putting Velcro to fasten  my cowl 
vs Dzus buttons) I fixed that problem by removing the  Warp and  installing a 
lighter Kiev prop. The valve covers have been  removed that many times and 
the old seals reused. They have not leaked so I  don't think you will have a 
problem.
 Be careful you don,t drop the valve covers.
                                           Dick Maddux
                                          Milton,Fl  

________________________________  Message 3  _____________________________________


Time: 05:46:24 AM PST US
Subject: Re: RotaxEngines-List: Purging 912  not required?
From: bjones@dmv.com


If anyone figures out what year or serial number was the cut off for not
needeing to do the oil purge please post it.

Thanks

BJ
earely 912

> Lucian,
>  I bought a small low pressure regulator at Harbour Freight and made  my
> own kit for low air pressure on the oil tank. Attached it at the end of
> the
> hose with a quick disconnect
>  Also,I have done the valve lifter check on my engine at least 5  times
> because of the problem I was having with the prop flipping backwards about
>  3
> revolutions at shutdown.( I thought about putting Velcro to fasten  my
> cowl
> vs Dzus buttons) I fixed that problem by removing the  Warp and
> installing a
> lighter Kiev prop. The valve covers have been  removed that many times and
> the old seals reused. They have not leaked so I  don't think you will have
> a
> problem.
>  Be careful you don,t drop the valve covers.
>                                            Dick Maddux
>                                           Milton,Fl


 

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