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water inlet tube angle

in 912 / 914 Technical Questions 7 years ago

  • Re: water inlet tube angle

    by » 7 years ago

    Ok, I"ll reseach the part numbers etc. Attached is a pick from the top of the orientation of the old water reservoir. The new res is a different design with different angles (none of which are helping) I went to flight design website search and saw the spring video. Thanks. It may be exactly what I need. Yes the engine did come with one 90 degree but it doesn't fit all the applications I will need. If I can bend it without a collapse and keep stress off the part, I"ll do it. I"ll keep you posted on progress, Also, I will hang the motor and do the plumbing with the install as near real life as possible. that is a good call too. Thanks guys.
    DSC_0026.JPG (You do not have access to download this file.)
      
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  • Re: water inlet tube angle

    by » 7 years ago

    It looks pretty close to the same if you clocked the yellow end to 10 o'clock instead of 11. You can use any straight 17mm with a spring and it will work just fine.

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

      
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  • Re: water inlet tube angle

    by » 7 years ago

    I"ll change the clock position. Funny, Kmach suggested hanging the engine so I started to do that, it was a great idea. But as you can see, the old engine, does not match the new engine dimensions, this just keeps getting more fun.
    DSC_0027.JPG (You do not have access to download this file.)
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  • Re: water inlet tube angle

    by » 7 years ago

    hello,
    I also needed to remove and refit the coolant elbows in the flanges; the ones on the cylinder heads. The Rotax Manual says to use "Loctite 243" for fitting them. Given the large amount of play and the fact that 243 is a thread "lock" rather than thread "seal", I started some research and found that the rotax-owner video calls for "Loctite 648", which is pretty expensive and not rated as a thread seal either, plus, the data sheet indicates that 648 looses strength over time in Glycol. So I contacted Loctite customer service and they were adamant in recommending "Loctite 577" for this application. I have now done 2 of the elbows with "648" and will do the last one with "577". Curious to know what other people's experiences are. I can already tell you that excessive and hardened 648 is very difficult to remove from the aluminium flange sealing surface.
      
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  • Re: water inlet tube angle

    by » 7 years ago

    I've been using 648 for 13 years. I've never had a leak or the tube ever come loose. When I need to remove it just heat it with a heat gun or a small butane torch.
    Coolant shouldn't be getting into the threads.

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

      
    Report
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