Hi,

I can't find a resource anywhere that tells me whether the relief valve
fits tightly or loosely in the relief valve cylinder. I took mine out
to investigate a leak.

I put a dowel in the relief valve, thinking that it would fit tightly
enough for me to pull the dowel out - but it wasn't. The relief valve
fits very loosely.

I had to slide the spring over a screwdriver and use the screwdriver to
carefully push the relief valve in until it felt like it was seated
(still wiggled) - slide the spring up and depress, then screw in the
plug.

There aren't any instructions anywhere that I can find on doing this in
the Bentley, so I'm not sure I did it right. After putting everything
back together, the engine seemed to overheat quickly. This may be
because I didn't think of priming the engine before letting it fire up.
The oil light went out after a few moments at idle.

The oil pressure light goes off when the engine starts up - and doesn't
flicker or come on at 2k rpm.

I'm using a Mann oil filter and 20w50.

Conrad