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No return line in fuel circuit?

in 912 / 914 Technical Questions 11 years ago

  • Re: No return line in fuel circuit?

    by » 11 years ago

    Ok. I'm still working and trying to apply advises.
    Now it's looks like this.

    Oil cooler in good position, firesleeves on fuel and oil lines and return line to gascolator.
    DSCF2451.JPG (You do not have access to download this file.)
    DSCF2441.JPG (You do not have access to download this file.)
    DSCF2440.JPG (You do not have access to download this file.)
      
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  • Re: No return line in fuel circuit?

    by » 11 years ago

    Starting to look good.

    Read this and see if this helps your hose and fire sleeve installations.
    Your fire sleeve should have clamps. Band-It clamps are preferable, but there are alternatives.

    http://www.rotax-owner.com/rotax-blog/item/21-rotax-5-year-rubber-replacement-the-installation-considerations

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

      
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  • Re: No return line in fuel circuit?

    by » 11 years ago

    I'm going to put clamp's on firesleeves like here (photo1) but it's impossible to put clamps on 5 port "star" fuel splitter.
    It's to tight. The problem is - I'm not able to buy small amount of firesleeve tape in Poland. I'm looking now any alternative. I'm going to test for petrol and fire reaction electric amalgamating tape.
    Zrzutekranu2014-03-3o10.26.06.png (You do not have access to download this file.)
    Zrzutekranu2014-03-3o10.28.14.png (You do not have access to download this file.)
      
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  • Re: No return line in fuel circuit?

    by » 11 years ago

    I have now only a mechanical fuel pump, but am going to install also the Rotax electric fuel pump as a complement on the fuel line behind the gascolator which is seated on the firewall in the engine compartment.

    My idea is to make it simple and not install anything else. No return line, No fuel pressure gauge or anything else.

    The electrical fuel pump would only be used occasionally for example at take offs for a couple of minutes.

    What could go wrong with that?

    I have operated the engine 15 years with only the mechanical fuel pump and no return line and no fuel pressure gauge. Why would i need them if i install the electric pump?
      
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  • Re: No return line in fuel circuit?

    by » 11 years ago

    Here is a good place to buy fire sleeve end wrap tape. It is not expensive and easy to use.

    http://www.americanfiresleeve.com/firesleeve-high-temperature-heat-flame-pyro-resistant-end-wrap-seal-tape-liquid-silicone-rubber-dip-paste-order-now.html

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

      
    Report
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