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Thread: Oil leak

  1. #1
    Registered User
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    Dec 2009
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    Huntington Beach CA
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    90

    Oil leak

    Can you tell me where this oil is leaking from?

    001.JPG

  2. #2
    That appears to be a leaking valve cover gasket to me.

    Clean it all up. Spray it with a white powdery antiperspirant spray. then the brown stain in the white powder will become obvious as to its source.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  3. #3
    Followed by the usual cautions of not "fixing" it by over-tightening the bolts and stripping the center one.
    Lee A. Dickinson - Danielsville, GA USA
    MOA 80364 | RA 29650 | ABC 3480 | IBA 8914
    1992 R100RS - 1993 K1100RS - 2013 R1200GS

  4. #4
    Looks like a pre-'75 head? If those are exposed stud tubes that I see through the head fins, you may have oil leaking around the tubes, between the steel tube and the aluminum. The O-rings under the rocker tower sleeves are supposed to control that. BMW no longer sells the right O-ring for that spot, but I can dig the dimensions out if that is the problem.

    You need to pull off one rocker at a time, slide the sleeves off the towers, and see if you have O-rings under there.

    Some of this may be described on my website.
    Anton Largiader 72724
    Tech articles
    Virginia Motorrad Werkstatt BMW motorcycle service and repair in central Virginia

  5. #5
    Registered User
    Join Date
    Dec 2009
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    Huntington Beach CA
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    90
    Thanks for the help. I've replaced the valve cover, cleaned it up and will watch it. If it's still leaking, I'll check the o rings.

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