Oil pump fibre washer

[Colsbeeza]

Hi Catz,
Yep-sleep on it. A good shot of whisky helps - or kick the dog or cat. Welcome to the Forum Catz.
Col

[Swarfcut]

...And the gasket shown above is what I meant by an extremely *** poor example, best avoided, see Col's comment.

 Swarfy

[Greybeard]

G'day Catz.
The definite answer is the SRM gasket!
Cheers

Yes, I agree.

[JulianS]

Oil pump gaskets.

Left from SRM.

Top right from a new old stock genuine BSA A10 gasket set.

Bottom right type some suppliers are selling. Tiny oil holes to restrict your engine oil supply and risk your engine. Over size mounting holes to allow the gasket to further obstruct the oilways if not correctly aligned.

[Catz]

I went over to see Andrew at Priory Magnetos today and bought two oil pump gaskets one of which i used as it should be and the other i cut out a section and placed it over the stud at the nose end of the pump and tightened the nuts down so the same thickness of gasket is acting on the whole oil pump.
I hope that's the end of the matter and thanks for all input.