oil leak from distributor??? need part number help

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  • Mr. Burns
    No R3VLimiter
    • Aug 2011
    • 3516

    #1

    oil leak from distributor??? need part number help

    I get a couple drops of oil overnight from my M20b25.

    I think I've sourced the leak to the distributor, and from what I know there should be a rubber seal\ring in which prevents this leak.

    I wanted to look up the PN, but real oem is showing there is none?

    Originally posted by flyboyx
    i have watched my dog lick himself off a few times
  • LJ851
    R3V OG
    • Nov 2010
    • 7918

    #2
    The dist cap is not supposed to have oil in it. Oil leaks from the front of the head are the camshaft oil seal and the oring around the carrier for the cam oil seal.
    Lorin


    Originally posted by slammin.e28
    The M30 is God's engine.

    Comment

    • Mr. Burns
      No R3VLimiter
      • Aug 2011
      • 3516

      #3
      a sh*t.

      this will be a much bigger job than I had anticipated

      thx
      Originally posted by flyboyx
      i have watched my dog lick himself off a few times

      Comment

      • mpowerful
        E30 Fanatic
        • Jul 2013
        • 1273

        #4
        yeah basically gotta take the timing belt down to do it since the camshaft pulley has to be taken off.

        Im bored so.... Anyway ..... http://www.pelicanparts.com/catalog/..._pg1.htm#item0
        Last edited by mpowerful; 04-21-2014, 04:03 PM.

        Comment

        • Mr. Burns
          No R3VLimiter
          • Aug 2011
          • 3516

          #5
          It's only a couple drops nightly. I think I'll turn a blind eye to it till swap time
          Originally posted by flyboyx
          i have watched my dog lick himself off a few times

          Comment

          • LJ851
            R3V OG
            • Nov 2010
            • 7918

            #6
            How old are the 4 rubber plugs that seal the rocker shaft notches under the valve cover? Maybe you are lucky and its them leaking.
            Lorin


            Originally posted by slammin.e28
            The M30 is God's engine.

            Comment

            • Mr. Burns
              No R3VLimiter
              • Aug 2011
              • 3516

              #7
              Originally posted by LJ851
              How old are the 4 rubber plugs that seal the rocker shaft notches under the valve cover? Maybe you are lucky and its them leaking.
              couldn't tell ya...

              I'll have another look and try to pinpoint it a little more
              Originally posted by flyboyx
              i have watched my dog lick himself off a few times

              Comment

              • Mr. Burns
                No R3VLimiter
                • Aug 2011
                • 3516

                #8
                Originally posted by mpowerful
                yeah basically gotta take the timing belt down to do it since the camshaft pulley has to be taken off.

                Im bored so.... Anyway ..... http://www.pelicanparts.com/catalog/..._pg1.htm#item0
                thx!
                Originally posted by flyboyx
                i have watched my dog lick himself off a few times

                Comment

                • mpowerful
                  E30 Fanatic
                  • Jul 2013
                  • 1273

                  #9
                  Mine seeps a little too because i was in a hurry to do the belt when i got my car and didnt change the seals. Number 14 in the first diagram should keep the oil out of the actual cap. As far as amount....mine is so slow there is no perceptible (ok maybe 1-2mm) oil loss on dipstick at 5k mile oil change intervals.

                  Comment

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