I can’t seem to stop my aftermarket cartridge type oil filter from leaking around the top seal. I’ve tried 4 times now with varying degrees of no luck. I have checked both the top and the top of the canister for burrs and uneven edges. I’ve tried both rubber and fiber gasket material; I’ve tried varying degrees of tightness. I’m also careful when placing the top on the canister so that it goes on square and does not spin as the bolt is tightened. Any Ideas???


1941 Chevy Master 3/4-Ton
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Born to fish, the truck is only a hobby.