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Help: Monster Oil Leak

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  • Help: Monster Oil Leak

    Gentlemen,

    I have acquired a 1989 M3. Having owned an 88 for almost 3 yrs now, I am very familiar with the e30 m3.

    Right now my 89 has a huge oil leak. As in if you idle it and it sits for a few days in my garage a puddle (6-8") forms below it.

    The PO stated that the timing cover was not sealed up correctly during the 2.5L rebuild. Can a leaky timing chain cover cause this much oil? The rest of the engine looks clean.

    What other areas should I check out. The oil filter head? What is the PN for the filter head rebuild kit?

    I know, I should clean up the oil then determine where the leak is coming from. I'm just hoping it's isn't the timing cover and I'm currently out of town on business.

    Thanks,

    Bernard

  • #2
    it could be from the timing cover...it could be from anywhere....

    clean it up and look...

    usual suspects....upper oil pan gasket....oil filter housing

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    • #3
      It sounds like The leak is pressurised , so look for a failed oil pressure sensor or leak in the oil filter flange area.
      Start from the highest point and work your way down if the leak is not obvious.
      It should be , because it is big.
      m

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      • #4
        I had a crack in the timing cover where the bolt for the generator clamp goes.

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