Michael Horowitz wrote:

My A-65 had the lower half redone.
At operating temp. and at idle, the oil pressure is certainly below
15PSI and may be below 10.
I asked the company that did the work and they replied "we don't worry
about low pressure at idle".
Continental says a minimum of 10PSI.
I'll get my A&P to put a real pressure gauge on to see what the
pressure is.
In your experience, does idle typically produce less than 15PSI or am
I looking at a problem?


spring oil pressure relief valve P/N 21352

Just install a new spring and you get higher oil press.
I do that and my pressure jump to the high side of the normal range.
It cost me 2 euros (2.6$) for this paperless new spring.
The new spring was 1" longer than the 40 year old one.

If it don't work, you may suspect your engine bearings are in poor
condition.

By
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Pub: http://www.slowfood.fr/france
Philippe Vessaire ҿӬ