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Oil leak from exhaust manifold stud?

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    Oil leak from exhaust manifold stud?



    Looks like I have a leak from the rear manifold stud. Anyone else have this issue?


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    #2
    Has the head been rebuilt? That's where the oil goes when the valve seals are leaky - drips down the inside of the port and seeps out the stud hole.
    john@m20guru.com
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      #3
      ^ making me glad I just replaced my valve seals :)


      it's a Kenny Powers quote on wheels

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        #4
        Oil leak from exhaust manifold stud?

        Originally posted by ForcedFirebird View Post
        Has the head been rebuilt? That's where the oil goes when the valve seals are leaky - drips down the inside of the port and seeps out the stud hole.


        No it hasnít. Do I need to pull the head to replace the valve seals?
        Last edited by Rev Run D; 06-05-2019, 12:11 AM.

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          #5
          It is possible to do with the head on if you fill each cylinder with shop air as you work on it, but without removing the rocker arm I imagine it's a real pain, if not impossible on some valves. In my opinion, it's not worth taking the head off for valve stem seals alone. I let a lot slide, though.
          '84 318i M10B18 | 93whp/90ftlbs | 147- Safari Beige | MS2E w/ LC, 2-Step

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