Question about 1995 Mazda 626

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Probable cause of oil leak upper portion of oil filter

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What upper portion are you talking about? Between housing and engine block? or where filter screws onto filter housing? If its where filter screws on sometimes when you chg. filter and you don't watch what your doing the old rubber Oring will stick on housing and you spin on new filter and it will leak because it will not seal because of the old Oring. Now if its comming from between the housing and block you will have to remove the housing and install a new gasget between engine block and filter housing.

Posted on Feb 24, 2009


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