Oil gauge

[CHEF_GOLF]

I have a 93 pre serp chim. The oil gauge keeps flicking off the scale under hard acceleration when I depress the clutch to change gear. Any ideas.
Also is the oil gauge a pressure gauge or oil temp

[Bassfiend229hp]

It's a pressure gauge ...

[jojackson4]

And you have a foobard sender or a st earth

[CHEF_GOLF]

Where do I find the earth

[jojackson4]

Std it's throw the sender body no ptfe

[s p a c e m a n]

Its normally between Venus and Mars

[chris1972]

New sender time. Mine did the same.

[spend]

It's an ETB sender on the side of the oil pump, quick check of the wire to make sure its not worn bare & shorting may be worthwhile. They cost @£30 direct from ETB instruments, easy to replace - the tiny bolt on ring term for the wiring is probably trickier than removing & bolting in the sender.

If there is a short in the loom wiring causing the problem it will be a real PITA to find, try & make sure where the loom goes behind the engine & around the heater duct is not chaffing on anything (may have to lift the plenum top it's pretty cramped in that area).