I have only picked up this discussion at this point. However for what
it's worth I found that it took about 20 hours of engine running before
the engine was fully run in. During this time 120 degC was reached
fairly quickly during full power climbs. Also if you are getting
coolant overheat with low oil temperatures the most likely culprit is
air locks in the coolant system.
Nigel Charles
>----Original Message----
>From: frans@paardnatuurlijk.nl
>Date: 25/04/2009 11:45
>To: <europa-list@matronics.com>
>Subj: Re: Europa-List: First engine run; what is normal?
>
<frans@paardnatuurlijk.nl>
>
>Frans Veldman wrote:
>
>>> You may get slightly better cooling on the ground by coarsening
your
>>> prop to push more air though the radiators.
>>
>> Ah, ok. That might be helpfull. Have conducted all my tests so far
with
>> the prop on fine. Will try this today.
>
>Started up today with a cold engine, ambient temperature around 15
>degrees Celcius, pop slightly on coarse, ran 2000 rpm until boiling
>point. Got 13 minutes out of it...
>
>Is that normal?
>
>The bad thing is that after these 13 minutes I think the oil is still
>somewhat too cold to ask for full power...
>
>Hate to think about warmer weather.
>
>I guess I have to modify the cowling, and use the lower part of the
>cowling as a ramp for the radiators. This will probably give more
drag
>in flight, but I think I need to be able to spend more time on the
>ground before take off. And being able to conduct a run up would also
be
>nice.
>
>--
>Frans Veldman
>
>
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