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Thread: Air Valve- front rear tire R

  1. #1
    Corporal saratoga's Avatar
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    Default Air Valve- front rear tire R

    I'm having trouble building air pressure in M1089.

    After I turn off, I hear hissing from the pictured valve around the bottom gasket. muffled when i cover with hand

    is it stuck or do i need to pull lines off and have rebuilt?
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  2. #2
    4 Star General simp5782's Avatar
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    Relay valve

    Common commercial part. Just replace it.
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Corporal saratoga's Avatar
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    its in the middle of a field. found the relay valve in tm, thanks.
    think there is anything i can do to get out before?
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    4 Star General NDT's Avatar
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    Cage the brakes but for heavens sake not if there are any grades or on public roads.

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    Corporal saratoga's Avatar
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    caged when i towed from govplanet. level grade on property, ill tow with grader

    cant figure out why it went out of no where.
    local guy came over and told me i was engaging trans and releasing brake in wrong order. could i be doing something wrong?

  6. #6
    4 Star General simp5782's Avatar
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    It's got a rubber diaphragm that went out. The rubber is probably 10yrs old if not older. It just gave out and and started venting. Better than it going out and applying air to the brakes locking them up and not venting. This happens alot on trucks primarily used offroad. Junk can get under the flap and cause issues
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

  7. #7
    4 Star General NDT's Avatar
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    The order of brake release/ putting in gear has nothing to do with anything. Simp is right, these parts are old and used low quality non-milspec commercial components to begin with.

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  9. #8
    4 Star General simp5782's Avatar
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    Haldex # N50004D or E. Just google or ebay search. Really any R12 valve would work but you may have to have bushings to adapt to the port size fittings you currently have
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

  10. #9
    Corporal saratoga's Avatar
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    valve is almost same price as rebuild kit. waiting to hear about shipping. is there a trick to get those hoses off?

  11. #10
    4 Star General simp5782's Avatar
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    They are just JIC on the big hoses they will just swivel right off. The 2 or 3 dot fittings should come right off as well.
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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