I don't think that'll work, the sealing area is on the outside edge of the copper gasket, not the inner edge like a Dowty seal. I don't recall ever seeing them on fuel systems -Renault use them on sump plugs so there must be some hydrocarbon...
As title, I'm thinking of replacing the copper washers on my diesel spill pipe banjo fittings as I'm finding it difficult to stop minor weeping, If bonded seals are resistant to diesel they would be an ideal solution ?
I didn't refit one when I did the bulkhead, thinning I'd get loads of drain back and I'd have to activate the pump for a while to get any water (this wasn't intentional, I just didn't have th valve)
Curiously, the performance seems no different...
Today I've replaced yet another check valve on my windscreen washers (last one sourced via Brit-Car) fitted 3 months ago, I run 60% screen wash concentrate so bug growth etc isn't an issue) where can I get a good quality one way vale that will...