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rough engine..

in 912 / 914 Technical Questions 13 years ago

  • Re: rough engine..

    by » 13 years ago

    I will need to take a hard look . I might need to fold the wings to get in there. Should I run a Y so it will go into both tanks?
      
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  • Re: rough engine..

    by » 13 years ago

    Hi Ryan,

    Bob is right about using a recirculation line, but you can plumb it from the fuel distribution block with a brass fitting (there is a port already there) and just run it down into the top of the gascolator or if you chose back to the tank. Most gascolator's are setup for this arrangement. A fuel pressure gauge is a nice thing to have.

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

      
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  • Re: rough engine..

    by » 13 years ago

    This plane was built by the Rans employee club. There is no block in the fuel system. They used a brass T. The fuel system comes from the tanks to a T, single line to a drain, then a shut off, from there to through the firewall into a fuel filter. From there to the gasolator. From there out of the gasolator to the fuel pump, out of fuel pump to a fuel brass T to the carbs. Can I buy one of those blocks and tie it in. I don't think I have another port in the gasolator.
      
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  • Re: rough engine..

    by » 13 years ago

    Yes you can buy that. It's a Rotax part. One input from the fuel pump, and four outputs: one for each carb, and two with restrictors in them to be used for fuel gauge and return line.
      
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  • Re: rough engine..

    by » 13 years ago

    Most gascolator's have the third port. It is on top and some people use that hole as a mounting spot, but it is actually a third port. Actually the hose you mention through the firewall should stop on one side and have a metal barbed tube fitting that penetrates the firewall then the hose is reconnected on the other side. Hose should not be a straight through for obvious reasons. It's a safety issue. The early Flight Design fleet ended up changing this in an SB. I'm doing one as we speak today and installing a firewall blanket.

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

      
    Report
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