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                           RotaxEngines-List Digest Archive
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                     Total Messages Posted Tue 05/25/10: 1
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Today's Message Index:
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     1. 01:57 PM - Re: "Burping" The Oil System in the 912 Engine  (bjones@dmv.com)
 
 
 
________________________________  Message 1  _____________________________________


Time: 01:57:05 PM PST US
Subject: Re: RotaxEngines-List: "Burping" The Oil System in the 912 Engine
From: bjones@dmv.com


Rotating the prop ONLY in the normal operating direction May be advised in
order to 1. fill oil tank to check oil level properly, 2. prevent pushing
air into oil delivery passages due to turning prop backwards, and 3.
prevent air from being sucked into oil passages because header tank is
empty and suction tube might draw air instead of oil. At least these are
the explanations  I recall from the Lockwood maint course.
BJ
N154K

> Am I correct in my understanding that the only reason Rotax states on page
> 10-15 of the Operators Manual to rotate the prop several times in the
> direction of engine rotation until one hears the "burp" or "murmur" in the
> oil tank is to return oil to the tank to check for the proper level in the
> tank? Some have inferred that you must do this every time before starting
> the engine to assure proper lubrication through out the engine. My
> interpretation of the Rotax instructions on page 10-15 of their Operation
> Manual is that this is to assure that you have the correct oil level in
> the tank, and for no other reason.
>
> Hugh McKay
> Allegro 2000
> Rotax 912 UL


 

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