Oil Screen Crush Gasket Leak

Oil Screen Crush Gasket Leak

The oil screen housing on my 0-200 engine seeps oil even after  both the large and small copper crush gaskets were replaced.  The oil appears to be coming from the area around the larger gasket. Can sealant, in combination with the crush gasket be use?

Thanks

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Re: Oil Screen Crush Gasket Leak

Mike; I assume you are using AN900 copper crush washers.I would look at the parting surfaces of the screen cover,and the engine surface. any little scratch on these will let oil seep past the crush washer.

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Re: Oil Screen Crush Gasket Leak

Willy is right.  Also, a common source of leaks is overtightenign a crush gasket.  It should be screwed in until the gasket touches and then tightened 135 degrees of rotation.  That doesn't seem very tight, but it's the proper amount.

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Re: Oil Screen Crush Gasket Leak

I have worked in five different shops across the country and they all installed the crush gaskets the same way. open side of crush gasket towards the non rotating side.(engine) and tighten to half the thickness of the washer. So far I have never had one leak.

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