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High oil temp on 912UL

in 912 / 914 Technical Questions 8 years ago

  • Re: High oil temp on 912UL

    by » 7 years ago

    Earthing (ground wire connections) can cause temp and pressure fluctuations or just irregular readings. These do need to be checked occasionally if you start to notice changes.

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

      
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  • Re: High oil temp on 912UL

    by » 7 years ago

    Hi Roger,
    you have recommended to insert a spring into the hoses occasionally. Do you mind posting a link which type of spring you have used yourself internet past. Although a "spring" does not sound like rocket science it seems a broad term. I'd be interested. Thanks a lot.
    Peter
      
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  • Re: High oil temp on 912UL

    by » 7 years ago

    Just look on line. I use a stainless steel 4" long by 1/2" OD compression spring. A 6" long spring will work even better. A 15/32" spring will also work. I hate to say this, but the folks in the US may find these springs at Ace Hardware. I mark the reduced radius mid point on the outside of the hose on the fire sleeve. I remove the metal 90 degree fitting and put a bit of oil on the spring. I then use a 12" long 1/4" extension that I have for my 1/4" socket drive wrench. I put a set of vise grips on the small end so I have something to push and pull the extension with and then just push the spring down into the hose where I want it. That hose will never pinch down again at the bend. I have used 11/16" OD springs in the 17mm coolant hoses also to keep them from pinching down on some engine applications.
    Both these work extremely well.

    I have reduced a lot of high oil temp issues with this where hoses make just a little too tight a bend.

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

      
    Report

  • Re: High oil temp on 912UL

    by » 7 years ago

    A little suggestion when installing such a spring in the hose(s): At the very end of each spring, bend the end tip inward a bit so that it does not exert any radial pressure on the inner surface of the hose. Also, round off the end tip. We don't want the tip of the spring to wear any holes in the hose!
      
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  • Re: High oil temp on 912UL

    by » 2 years ago

    Hi Gordon, lm thinking y does the 912 engine series have so many problems with oil temp & pressure. I’m thinking is the oil we use is not sufficient enough for the engine,Q, is there a oil we can use besides shell sport 4

      
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