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Unexplained oil leak after oil change

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    Unexplained oil leak after oil change

    Morning folks! So I've noticed a small oil leak from the timing side of my F22A1, It began right after an oil change. I spilled some oil from the filter and forgot to clean it up, and assumed it was just that. but its been like 3 months now and its still dripping occasionally. Not sure of its the oil pan, or from behind the timing cover, but it seems to be pooling and dripping from the little spout on the timing cover This is very odd, because I replaced nearly every major seal on the engine over the course of 4 years. I replaced the TB and water pump 4 years ago, and I replaced every seal found behind the timing cover, minus the valve cover gasket. Last year I replaced the oil pan gasket, and the rear main seal. I used either OEM or high quality aftermarket seals for all of them.

    If I had installed the seals wrong they would have started leaking right away, not 4 years later. My main suspect is the oil pan gasket and the valve cover gasket. The OP gasket was installed wrong and I reused it after only a few hours of installing it the first time. The valve cover gasket was installed 9 years ago by my mechanic, and it was disturbed twice during the timing belt job 4 years ago. Could the valve cover gasket be leaking only from the cam pulley side? Its dry everywhere else.


    Betty and Betzi died for our sins


    #2
    Did you happen to switch to a new brand of oil?
    Modern synthetics tend to make seals a bit more leaky...

    I'd say your guess of the valve cover gasket/cam seal is likely. The spot where the gasket rolls over the cam journal is often the first to leak. Pop the upper timing cover and take a looksie.

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