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One crush washer seeps a little in the fuel line crossover banjo. I’ve replace all 5 to proper torque but still a little seepage in the second down washer. Is there a better replacement washer the same size?

9739_1_F7F81EC1-9971-4CB9-BF21-EEE12328F3DC.jpeg (You do not have access to download this file.)
  • Re: Crush washer leak in upper fuel banjo

    by » 12 months ago


    There are two crush washer thickness sizes. Make sure you have the thicker one. Look in the illustrated parts manual. I just had this same issue and it was because of the wrong thickness crush washer in this location.  

    p.s.

    Tighten them tight.


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


  • Re: Crush washer leak in upper fuel banjo

    by » 12 months ago


    One time I got a banjo bolt that was for some reason just a little too long and because of that it would not quite seat properly.


  • Re: Crush washer leak in upper fuel banjo

    by » 12 months ago


    Roger Lee wrote:

    There are two crush washer thickness sizes. Make sure you have the thicker one. Look in the illustrated parts manual. I just had this same issue and it was because of the wrong thickness crush washer in this location.  

    p.s.

    Tighten them tight.

    Thanks,

    I only see one sealing ring 10x14 part 230150 in the illustration for the 912ULS?  Is there a thicker one I’m not seeing?


  • Re: Crush washer leak in upper fuel banjo

    by » 12 months ago


    use this one, 950-143 and it shouldn't leak.

    p.s.

    If it still has an ooze you could apply a thin film of Hylomar Blue sealer on the "O" rings. It does work without any negative affects. Just don't glob it on. Just a thin film on both sides of each crush washer. Guaranteed not to leak. Hylomar Blue is used for fuel, but it is not de-solvable by the fuel so you don't want any just floating around in the system. Use it properly  and it isn't an issue.

    Anything can be used wrong. Even a screwdriver can cause damage.


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


  • Re: Crush washer leak in upper fuel banjo

    by » 12 months ago


    950-143 is the gasket I ordered and still weeps a bit. I’ll try the Hylomar Blue sealant as you suggested and hope for the best.  Thanks again


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