Can you clean up the rear of the engine so that all traces of leaky
oil are gone. Then run the engine and try to locate where the oil
leak is starting from?
Look at the oil sending unit for splits too.
Unless the oil filer is cracked from excessive pressure the engine
can handle it. But oil pressure usually drops when the oil heats up.
70- 80 at both idle and 60 MPH seems abnormal. Can you verify the
pressure readings with a mechanical oil gauge? What weight oil is in
the engine?
Thanks,
Gary H.
-------Original Message-------
I have a 440 that just broke a lose and started leaking oil at rear
of
engine. I thought it was rear main seal leak and had it replaced.
Mechanic said the old seal looked fine, had silicon(black). It held
about 15 miles and broke a lose again. I bought this car in Little
Rock, Drove it 50 miles on other side of Fort Worth and back to
southeastern NC at 3000 RPM (70 MPH) and it only used 2 quarts of
oil.
It shows 70- 80 lbs oil pressure at idle and at 60 MPH. I've never
had
that much pressure on any motor I've had. Do you think it could be
leaking at back of block at cam or lifter bore plugs and what do
you
think about replacing oil pump with less pressure? If you think the
pressure is too high, what oil pump do you recommend. This problem
is
starting to get to be a real pain and expensive. Thanks.
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