Engine Oil Leak

BobnLesley

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1 Dec 2005
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Our engine (Volvo MD6A) suffers from a persistent leak at the interface between the oil filter (disposable canister type) and engine. We've tried over and under-tightening them to no avail. Some makes of filter (Crossland) have managed to provide a better seal than others, but there's is always some degree of leak and it appears to be getting worse. Any suggetions?
 

orizaba

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28 Jun 2007
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is the threaded stub fixed,some of them unscrew and if not screwed back tightmay cause a problem,had it occur on a few lorries.the only other thing i can think is that the housing that the filter goes up to is distorted,maybe the crossland filter had a slightly softer rubber and so took up the slack
maybe its been twisted in the past,
i assume you smear the rubber on the filter with oil or grease before fitting .
is it possible that it has an old rubber left in the housing and you are tightning to that instead of the ally/steel face
 

pbeard

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10 Oct 2005
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I once had a similar leak and found that previously someone had been heavyhanded with some tooling and had badly scratched the mating surface on the filter housing. It took a while with emery to smooth the indentation out but then the seal took up the surface nicely and it leaked no more! You may need a torch and mirror to have a good look.
 
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