350 oil filter canister

dhermesc · Mar 26, 2017

What makes an oil filter canister leak out the top through the bolt hole.

Janicholson · Mar 26, 2017

It needs a copper ring at the bolt head. Jim

jeffcat · Mar 26, 2017

Copper ring is original. VW had a copper. Crush ring for their oil plugs. Go to your local well stocked NAPA or such with the bolt and get some thick nylon washers that are made just for this purpose. Pick up a couple. I have a 300U with the same set up.

D Slater · Mar 27, 2017

Other than a bad seal ring over tightening can deform the canister bolt hole. Sign of being deformed is canister being sunk in at bolt hole instead of protruding.

dhermesc · Mar 27, 2017

That's what I'm afraid may have happened after the copper ring was lost at the last oil change. It was leaking slightly then one of the boys said it was leaking really bad - I think he attempted to fix the slight leak by tightening the bolt and deforming the upper lip. I'll check it out when I take it apart tonight.

Thanks for all the replies.

rustyfarmall · Mar 27, 2017

I've heard that the copper gasket from a spark plug will work. I've never tried it myself.

pete 23 · Mar 27, 2017

I have straightened out many oil and fuel filter canisters over the years. A little ingenuity with a properly sized rod , pipe or bolt, what ever to push it back up to protrude and then smoothing it out with file or whatever to get a nice flat smooth surface.

350 oil filter canister

dhermesc

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Janicholson

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jeffcat

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D Slater

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dhermesc

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rustyfarmall

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pete 23

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