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Thread: Brake hose compatability

  1. #1
    Senior Member 109JB's Avatar
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    Default Brake hose compatability

    Working on plumbing my brakes which will use nylaflow for 99.9%, but to connect to my remote reservoir I need to use a 1 inch long hose. I'll be using mil-h-8606 fluid and am thinking a piece of tygon fuel hose will fit the bill. Some information I found indicates an A rating for resistance to mineral based oil, do I think it would be fine but wondered if anyone else has experience in this regard.

    Thanks
    John Brannen
    Morris, IL
    Sonerai IIL (Single Seat)
    Kitfox 3/4 1050 - Rotax 582 (Back Flying and sold)
    Kitfox IV 1050 - Rotax 582 (sold)
    Kitfox IV 1200 Speedster - Rotax 912 UL (project)
    Piper Twin Comanche (Sold)
    Glasair 1 FT (Waiting to start)

  2. #2
    Senior Member Maverick's Avatar
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    Default Re: Brake hose compatability

    I'm not familiar with the IV but why wouldn't you go all the way to the reservoir with the nyloflow?
    EAA, AOPA
    KF5 (N49FK & N36KJ)
    Phoenix, AZ

  3. #3
    Senior Member PapuaPilot's Avatar
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    Default Re: Brake hose compatability

    Quote Originally Posted by 109JB View Post
    Working on plumbing my brakes which will use nylaflow for 99.9%, but to connect to my remote reservoir I need to use a 1 inch long hose. I'll be using mil-h-8606 fluid and am thinking a piece of tygon fuel hose will fit the bill. Some information I found indicates an A rating for resistance to mineral based oil, do I think it would be fine but wondered if anyone else has experience in this regard.

    Thanks
    Did you mean MIL-H-5606?

    I would second Maverick's question. If possible go with Nylaflow all the way. If you add a couple unions to change it to Tygon you are adding 4 more places for potential leaks. Using the KISS method is usually the best.

    Tygon would probably work with the fluid, but it does quickly go from flexible to stiff. I am using it for the fuel return line from the header tank to the fuel tank and it has gotten very stiff.
    Phil Nelson
    A&P-IA, Maintenance Instructor
    KF 5 Outback, Cont. IO-240
    Flying since 2016

  4. #4
    Senior Member 109JB's Avatar
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    Default Re: Brake hose compatability

    It has nothing to do with being a IV or a 5 or 7. The reservoir I am using has a hose barb so using nylaflow to the reservoir isn't possible. I just need 1 inch of hose to connect the reservoir to the nylaflow. And yes i meant mil-h-5606. Just a typo.
    John Brannen
    Morris, IL
    Sonerai IIL (Single Seat)
    Kitfox 3/4 1050 - Rotax 582 (Back Flying and sold)
    Kitfox IV 1050 - Rotax 582 (sold)
    Kitfox IV 1200 Speedster - Rotax 912 UL (project)
    Piper Twin Comanche (Sold)
    Glasair 1 FT (Waiting to start)

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