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I fly a Kitfox mod IV 1200 with a 912 80horse. At shutdown I noticed oil on the starter. Eventually I determined that the leak was actually AT the starter so I removed it. I replaced all the o rings and reinstalled the starter.
The leak is still there.
Anyone had this problem?
P.S. Normally starter maintenance requires engine removal from the Kitfox model IV. I have an access panel in my firewall that facilitates starter maintenance without engine removal.
  • Re: 912 leaking at or near starter

    by » 11 years ago


    Hi Jay

    Is the oil leak definitely from the starter motor or is it from the crank case joint just below the motor where there is an oil way passing through the crankcase joint.

    I know it is difficult trying to pin point an oil leak exactly, but this point does seem to leak out of the blue on some engines.

    Has the engine had a sprag clutch replaced recently?

    Mark

    Thank you said by: jay white

  • Re: 912 leaking at or near starter

    by » 11 years ago


    The leak is definately at the starter. I had my A&P friend verify with me that the location was correct. We looked at the diagram in the book and there is only one (1) o ring on each spacer for the through bolts. I installed one on each side of the spacer (two per spacer) as that is what I dissasembled. So, ... maybe the new orings are too much thickness? I"ll do it again. Not till next oil change though, the plane goes in for annual then.

  • Re: 912 leaking at or near starter

    by » 11 years ago


    Hi Jay,
    Some planes can leak from the starter "O" ring and migrate along a bolt, but many times what you may think is a starter leak is really on the case and it needs to be re-sealed.

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


  • Re: 912 leaking at or near starter

    by » 11 years ago


    Roger, if it is a case leak, isnt that pretty much an automatic rebuild requirement?

  • Re: 912 leaking at or near starter

    by » 11 years ago


    Hi Jay,

    I was only talking about the electrical housing and starter. You don't need a rebuild to just re-seal this area.

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


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