Fuel Pump Gaskets

[bigmalcy]

Dear Collective

I seem to have an oil weep / leak from the fuel pump to engine interface. Should I buy a bespoke gasket or just buy some gasket material and cut one out myself?

 

2nd question - should I be looking for a thick gasket or a thin one? I always think the thick gaskets look better and more likely to seal than the thin ones, but happy to be corrected.

 

TIA

Malcolm

[RogerH]

Hi Malcolm,

I also had a weep from the pump/block joint on my 4A.

You could go for a thick gasket or a couple of thin ones. I used the RTV silcone stuff and it worked.

 

Roger

[stuart]

Be aware if you move the pump outwards it lessens the stroke so slightly lessening the delivery.

Stuart.

[Don H.]

The simple thin paper gasket and scrupulously clean mating surfaces have always worked for me.

 

Perhaps reface the pump casting by some abrasive paper on a glass plate to ensure flatness?

 

I don't like RTV or other curing polymers in places where a piece could plug oilways if it gets into the system.

Edited January 12, 2017 by Don H.

[james christie]

Cornflakes packet is excellent !!

 

James

[bigmalcy]

Thanks fellas

The local Supercheap Auto sells 0.8mm thick oil gasket material so I'll give that a burl. Tempted to try the Cornflakes packet, though

 

The car's not pushed hard so fuel delivery shouldn't be a problem (I hope!). Maybe one day I might consider going electric, too.

 

Also got a small leak from the rear end of the sump (I think) so I'll make up a thick gasket for the sump, too, while I'm at it.

 

Thanks again.