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Thread: Fuel Pressure gauge issue

  1. #1
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    Fuel Pressure gauge issue

    My gaffrig fuel pressure gauge has been working great until last weekend, now when I start it up it pegs to the right and then when I turn the boat off it returns to the off position or all the way to the left. I haven't had a chance to look around the motor I did crawl under the dash and all the wires looked tight.

    Any comments would be appreicated.
    thanks,
    Gregg

  2. #2
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    if it's a 1 wire sender, the sender is lost the internal ground

    if it's a 2 wire sender, then the ground side is interrupted
    Charter Member - WAFNC, SBBR, KWOSG
    1955 Perfect Mate
    1986 Hornet III, 502-415 TRS

    www.donzi.org


  3. #3
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    Quote Originally Posted by BUIZILLA View Post
    if it's a 1 wire sender, the sender is lost the internal ground

    if it's a 2 wire sender, then the ground side is interrupted
    +1 I agree.

    1971 Donzi 18' 2+3
    1985 Eliminator 23' Daytona Offshore - Kevlar hull
    1988 23' Donzi CC F-23 with 250HP EFI Mercury OB
    1989 28' Team Warlock Offshore - single 548CID/600HP
    1990 23' Warlock Offshore - single 525HP
    Bill from Denison, TX - Lake Texoma

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    thanks- do you know where that sender might be located?

  5. #5
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    If electric fuel pump, the sender will be between the pressure regulator and carb.
    If a mechanical fuel pump, between the pump and the carb.
    If it's carbureted.
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

  6. #6
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    Here's the pressure regulator and pressure sender on the TR. The regulator is at the bottom of the blue hose, and the sender is screwed into the right side of it. Two wires are attached to it.
    Attached Images Attached Images
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

  7. #7
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    thank's George for the great information.

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