Petrol tank cap seal

[a101960]

The rubber seal on my RGS tank has been wrecked by ethanol. The seal has never been very good but now it is swollen and lose. I think that it will be pointless to find and fit another rubber seal. I am now thinking that a teflon seal would perhaps be suitable. Does anyone know of a source for teflon seals?

John

[wilko]

Cut one out of leather.

[duTch]

 Try Cork too, it's what the other stuff superseded

[BSA_54A10]

I have had sucess with 60% to 80% tefflon ( density so it is a bit spongy )
Leather ones seem to work very well if fully oiled up before use.
Cork sheeting fell apart ( what a mess ) in no time flat and a second try with supposed "fuel proof" cork sheet did the same thing over a longer period
I am yet to try "fuel proof" buytyl rubber but as that was the bonding agent in the cork I am not real shore I want to spring for it ( not cheap )

[Jules]

I think you would need a "viton" type of rubber rather than butyl or neoprene, viton was the only quality that resisted all fuels to my knowledge........