Posted by KEITH FORBES on January 29, 2008, 6:28 pm, in reply to "Re: excessive oil pressure"
75.157.4.237
check your pvc,valve cover breather air filter!
for some strange reason i replaced a k&n filter with new and asimilar problem went away,keith
--Previous Message--
: Not really - sounds like your oil pump is
: working fine but you must have a restriction
: somewhere in the system that is causing high
: pressure behind it. I'm not sure where you
: connected the manual guage but the fist
: thing I would check is your filter. If it is
: clogged at all it will result in high
: pressure. The pump is made to pump a
: predetermined amount of oil thru the crank
: and filter then up thru the top of the
: engine giving it pressure as it is
: restricted in the ports and filter. If there
: is a retriction in the filter or any parts
: of the engine it will increase the pressure
: due to the pump still pushing the same
: volume thru the system.
: Sorry for the long answer.
:
: --Previous Message--
: I have a 67 Olds Cutlass Supreme with a
: 400ci/auto. It has not been driven much
: since 95 and I purchased the vehicle 9
: months ago. There has been some leaking from
: the engine and trans and I thought the
: gaskets hav dried out some. I had put approx
: 300 miles on it and she runs smooth and
: quite. All of a sudden oll started blowing
: out from the oil filter adapter so I
: replaced the gasket. The first thing that I
: check in was crankcase pressure and there is
: no blow-by and the pcv ssystem including
: hose is good. I hooked up a manual oil
: pressure gage and it reads 50psi at idel and
: increased to 75psi at 3000rpm. I'm thinking
: it must be the oil pump...Am I on the right
: track or what advise can you give me.
: Thanks, Dave
:
:
:
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