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Possibility, Perry. However, when I lost my
front cover oil "O" ring the pressure did decrease to 27 psi, but,
the oil temperature did not climb. I suspect that if John's oil
pressure is low and the oil temps are high that implies either a restriction in
the lubrication system or perhaps a failing oil pump. Since, it appears he had
replaced his oil filter before this incident - that would be where I would start
looking for the cause
FWIW
Ed Anderson
Maybe it's that oil oring in the
front cover? Wasn't the engine recently opened up?
DaveLeonard
wrote:
Very sorry to hear that John. Interested to hear what happened.
Dave Leonard
Today I changed the plugs, oil and filter. Engine seemed to be
running well.
Oil pressure 87 on the runup. I didn't hear anything unusual, but an
observer on the ground said I had a misfire or two on the take-off roll.
I did a pattern. Oil pressure 65 on the downwind at 3600 rpm. After a low
pass, which apparently sounded sweet from the ground I headed south a few
miles and climbed above the class C. By the time I was over the field at
5000' the oil pressure was 24 at 3500 rpm, coolant temp was 230
and oil 220
(much higher than usual). I began a descent. At minimum throttle
temps went
back below 200, but oil pressure was around 20 - 25. Engine began running
rough. Richer mixture smoothed it out. I had the mixture at a 4
pm setting.
Anything leaner and it faltered. Switched off one set of injectors (the
primaries I think) and it ran better.
On short final at idle oil pressure was in single digits, and as I taxied
back to the hangar it was actually reading negative.
Y'know - I'm getting really sick of this.
John (hoping for a positive attitude in the morning)
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