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In replacing fuel lines for 912iS fuel injected I have heard a number of techniques for getting the old fuel line off and putting the new fuel lines on. For removal cutting with knife, heating to soften/loosen to get off combo? Putting on heat to soften? 

With all my rotax maintenance I would really appreciate some advice from experience.

  • Re: Best fuel line removal and installation?

    by » 3 months ago


    For older lines, using a New Xacto/Razor Blade, I find that cutting it along the length of the connection deep enough to sever the reinforcing braid but not deep enough to scratch the connector usually works.
    Once it is cut 60-80% of the way through, a little leverage will usually cause it to split the rest of the way.

    If the Hose is newer and not very brittle and still has a lot of flex, Partially slitting the hose will relieve most of the grip, and a little WD-40 in the joint will usually allow you to pull it off.

    Heat and fuel lines make me nervous.
    Some idiot will try it with a propane torch.
    Even the glowing elements in an Electric heat gun are way above the Auto-Ignition Point of gasoline.
    A wayward splatter of fuel on the heat gun will cause your day will go bad quickly!

     


    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Bill.Hertzel@Yahoo.com
    Clicking the "Thank You" is Always Appreciated.


    Thank you said by: Paul Hamilton

  • Re: Best fuel line removal and installation?

    by » 3 months ago


    I like Bill have to slit hoses at times too.


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


  • Re: Best fuel line removal and installation?

    by » 3 months ago


    Hi Paul

    I assume you are referring to the fuel pump rubber lines?  If so be very careful in cutting any of them.  Just slit the outer layers and try to leave a tiny bit.  If you push the cutter too deep it may leave a score mark on the fitting that could be an issue later.  to push on the new lines is normally not an issue.  Avoid any solvents, good ole spit works well.  (yes try some plain water if you're sensitive) 

    Cheers


  • Re: Best fuel line removal and installation?

    by » 3 months ago


    Universal lube = spit.  :)  

    Use it all the time. LOL


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


  • Re: Best fuel line removal and installation?

    by » 3 months ago


    😮😮


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