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Gas gauge 57 silver hawk

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  • Electrical: Gas gauge 57 silver hawk

    Hows it going guys? Im going to be working on my grandmas 57 silverhawk now the weather is getting better and 1 of the first things I was looking in to doing is fixing the gas gauge. I was just woundering if there is a need for a wiring diagram or is it just a simple power through a potentiometer through gauge set up. And if anyone knows where to find 1. Thanks

  • #2
    It is plenty simple, there is a hot (12V) when Ignition on, wire from the Ignition switch to the BOTTOM Term. of the Gauge (Dash Unit).

    There is a wire to the Tank Unit on the Top Term. that gets a REGULATED amount of "Ground" (resistence) from the sender based on fuel level, so no actual "Power".

    The important thing since New Dash Units are not available is finding a Stewart Warner (or other) Replacement (aftermarket) Fuel Gauge that matches the OHM rating of a Studebaker (SW) sending Unit. I believe they are 33 Ohms Empty and 240 Ohms Full.

    If you Ground the Sender Wire at the tank, through the hole in the Trunk floor, you should get a "Full" reading, if not it is the wire or the Dash Unit that is defective.
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner

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    • #3
      Thanks for the help! Hopefully ill get into it this week.

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      • #4
        You can by a rebuilt fuel gauge from Brent Hagen for $75. I bought one from him last year and it works like a champ! The fuel gauge for Hawk model years 1956-1961 is the same.

        http://www.1956goldenhawk.com/hagen/

        look under the "rebuilt parts" section on that page.

        Also: make sure you have the shell of the gas gauge grounded when you are checking your gauge. I thought mine didn't work and it turned out that even though I had it hooked up right it wasn't grounded properly (since the dash is fiberglass and doesn't provide a ground).

        Good luck!
        -Ross
        sigpic
        1961 Flamingo Studebaker Hawk

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