I had the same symptoms, Danny, when my 912S was new. The Rotax oil
pressure gauge also twitched violently, before settling down at about 2.5
bar. However, 350 hours later, it no longer twitches and it runs at about
3.75 bar when hot in the cruise. I can only imagine the pressure relief
valve ball has eventually bedded into its seat. BTW, my previous engine was
a 912 (80 HP) which ran at 4 bar constantly all its life (800 hrs) and the
oil pipes and cooler were exactly the same from one engine to the other, so
I don't believe any of the pipes were collapsing due to suction.
I hope that helps,
William
----- Original Message -----
From: <danny@mcwalterscafe.co.uk>
Sent: Monday, April 30, 2007 3:45 PM
Subject: Europa-List: oil pressure
> <danny@mcwalterscafe.co.uk>
>
> Hi All,
> Can some one tell me if its normal for the oil pressure to drop
> when revving up the engine. After start up the pressure immediately
> reaches 4.5 bar, but when I throttle up it drops to 2.5. Is this strange /
> normal ? With all the talk about Rotax not liking oil starvation its a
> bit concerning .
>
> Cheers Danny
>
>
> --
> 269.6.2/779 - Release Date: 28/04/2007 15:32
>
>
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