TR2/3/3A fuel pump oil leak

[TFB]

I have a small drip at the fuel pump.I have replaced the gasket with a high quality material homemade gasket ,but still some drips.
Are there seals on the primer lever shaft or is it just a tight fit in the body,as I now suspect that's possible source.I have never had pump apart and rebuild kits don't show anything that looks like seals for small shaft for the primer.
Thanks
Tom

 

[bammons]

In addition to the gasket at the block there is a gasket at the top of the fuel bowl and also a diaphragm underneath the top cover which may need changing if it has been a long time. Get a fuel pump rebuild kit and change them out it is not difficult. Leakage can also occur at the fuel line connections. Bruce

 

[Hamish Racing]

There should be a rubber type gasket to the block that the fuel pump lever just slides through with a small drain hole at the bottom back to the block that prevents excess oil getting to the pump.
mine had one just can’t find the pictures now.

 

[TFB]

Thanks Bruce,I think the bowl gasket and diaphragm would be gas leaks or no pumping.
Thanks Hammish.The gasket pictured in rebuild kit just shows bottom notch for lever,no small hole.It seems the hinge pin may be leaking but further inspection necessary.
Tom

 

[Hamish Racing]

Can I point you to this thread on the tr register forum where it has my pictures of the seal. Which I’m sure can be made.
and other advice on this issue

Fuel pump oil leak

The fuel pump is leaking oil from the pivot shaft. I would much prefer to fix it than put on an after market one. Any ideas welcome.

www.tr-register.co.uk

 

[TFB]

Thanks Hammish.That split gasket is completely different than shown in moss kit for tr3 ,so now not even sure what pump base I have as its been years since gasket replaced.Im still not sure what the missing kit seal is that seems to be for diaphragm ,not hinge pin.
A dab of sealer May do the trick.
Someone mentioned excessive crank case pressure but with the draft tube I think that's impossible.
Thanks again
Tom

 

[sp53]

TRF sold a kit that included a seal in there premium kits, looked like a rubber umbrella.

 

[TFB]

Thanks,Still not sure where this umbrella looking seal goes but good to know to get the premium kit for a future rebuild.
I believe the hinge pin's only seal is a tight fit in the body and if sealed I think it would take two seals.
Thanks
Tom