Oil preasure?

[Phil Payne]

> Where is this oil pressure relief valve and what does it look like?

Underneath and very front of the engine there's a single wire attached via a cross-head screw.
Unscrew the wire (it's the oil temperature gauge sender) and then screw out the sender itself.
Sitting on top is a spring, and on top of that is a piston.

Clean everything thoroughly.  Above all, the piston must drop out under gravity.  First time
you might have to fetch it out with a telescopic magnetic retriever, but you have to clean it
and wipe out the hole so it moves completely without resistance.

Remember which way up it goes, too.

--
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
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