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Oil leak from exhaust port

in 912 / 914 Technical Questions 11 years ago
Does anyone have any good theories why oil would be leaking from an exhaust port on a 12 hour engine?

All thoughts are welcome.

Mark
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  • Re: Oil leak from exhaust port

    by » 11 years ago

    Have you checked the nut torque yet? Maybe unequal tightening on one side verses the other and the pipe is not square up against the opening. The flared part of the exhaust pipe should seal up against the exhaust port opening. I would loosen it up and move it around slightly then torque it all back up and watch it.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report

  • Re: Oil leak from exhaust port

    by » 11 years ago

    Hi Roger

    Yes they are tight and the joint looks good, Ive never seen this before, at least not on a new engine.

    Mark
      
    Report

  • Re: Oil leak from exhaust port

    by » 11 years ago

    I would still completely loosen it, clean it well and torque everything back up. It could just have some debris between the flared end and the exhaust port.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell

      
    Report
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