I have 1991 318is. The engine continues to have a major oil leak behind my oil filter housing after twice replacing the housing gasket and o-ring recently. I’m seeing a stream of oil running down from behind the housing and then spreading out onto the oil pan and ground shortly after the engine starts running. Prior to my recent OFH gasket installs, the OFH and mating surfaces were super clean, and the new gasket was lightly coated with Permatex Ultra Grey (next time I’ll try the spray). Also the o-ring was lightly lubed, OFH pressed firmly onto timing case, and then the bolts were sequentially torqued to spec in X pattern, etc.
The last time I pulled the OFH off, the housing’s male plug, which the o-ring 11421709513 slides onto, gave me trouble. This plug detached from the housing and stayed stuck in the timing case. I wiggled this plug out of the case and then pressed it back into the OF housing, but the detachment worries me. I think that OFH male plug is messed up and it's not sealing correctly. I need a new strategy before I start my third gasket and o-ring replacement. Suggestions?
The last time I pulled the OFH off, the housing’s male plug, which the o-ring 11421709513 slides onto, gave me trouble. This plug detached from the housing and stayed stuck in the timing case. I wiggled this plug out of the case and then pressed it back into the OF housing, but the detachment worries me. I think that OFH male plug is messed up and it's not sealing correctly. I need a new strategy before I start my third gasket and o-ring replacement. Suggestions?
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