Steve, You are confusing oil pressure relief valve with the oil filter
bypass valve. The bolt you removed was the banjo bolt (the tube from the
block to the oil filter housing, is held by it ). The oil pressure valve is
a little lower and in front of hollow bolt with the tube. It looks like
bolt with a hump in the center, and no tube. Remove that bolt and a spring
and cap will come out, that is what Frank told you to clean.
What you cleaned was the oil filter bypass, this is in case your filter
is clogged oil will still flow. Some filters have this built in and in
others it is in the housing. You don't want to mix the two. One or the
other needs to be there but two or none is bad.
If you really did pull the pressure relief valve and there was no spring
or cup your oil pressure would be a lot lower. Good luck.
Crash
> I had my workshop manual along, and saw the drawing of the relief spring
and
> cup. That was my first thought, that the relief valve had become plugged
> somehow. But, when I removed the 1" hollow bolt on the side of the block,
> there was nothing underneath it but a copper washer--- no spring and no
cup.
> I even probed inside the hole with a screwdriver to make sure. But, it
has
> been like that for at least the last 15 years and 40,000 miles with no
> problem. I motored the engine with the starter while the 1" bolt and the
> filter head were off the car. All I got out of the holes was used motor
> oil.
>
> Isn't the relief valve built into the oil filter head on the 1275? There
is
> a spring-loaded ball in the filter head that is inside the area sealed by
> the oil filter seal. I can push it down easy enough, and I found a
service
> station with compressed air and nozzle, and I blew air through it. It
seems
> O.K. The ball is bright and shiny, and it isn't stuck.
>
> ??
>
> Steve
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