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Thread: 2R5 - Fuel gauge dilemma

  1. #1
    Commander Member
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    2R5 - Fuel gauge dilemma

    Gentlemen,


    I have a 1951 2R5 pickup. Recently I had the fuel tank that I got from Ted Jensen (845-224-7934) completely reconditioned by Mark at Steve’s Classic Cars in Milford, Ohio (513-722-1758, 513-312-1880.) Ted's gas tank was a gem and it needed very little done to it to get it in A-1 condition again. Steve’s Classic Cars also replaced the float/ gas tank level sensor that fits inside the tank.


    I filled the tank up and the fuel gauge needle read 'left of empty.' The needle slowly started to rise and then it stopped at around 1/4 tank. Then the needle 'jumped' to about 1/2 tank, where it stopped again. Next the needle rose slowly and steadily; then it jumped to 7/8 full. The needle rose to 'right of full'; stayed there a while, then went all the way to empty again.


    My truck was sitting on flat ground and the fuel was not sloshing around. Also, the float/ gas tank level sensor is new and I'm certain it's the correct part for the tank. Can the fuel gauge needle be lubricated with WD40? Should I try that at all?


    Why is the fuel gauge needle 'jumping' rather than rising slowly and steadily as I thought it should?


    Where's the problem that I can't decipher and what's the fix?


    Thanks for your helpful replies.


    Mark in Ohio
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    Last edited by mkibler; 01-04-2019 at 09:49 AM. Reason: added new info

  2. #2
    President Member Commander Eddie's Avatar
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    I would check for a bad ground.
    Ed Sallia
    Dundee, OR

    Sol Lucet Omnibus

  3. #3
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    Thanks Ed,

    We'll start there. I'm curious what other ideas the other guys might have.

    Mark in Ohio

  4. #4
    Silver Hawk Member
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    Agree with Eddie. The intermittentcy strongly suggests bad ground.

  5. #5
    Golden Hawk Member StudeRich's Avatar
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    Are you running 6 Volts Positive Ground or 12 Volts Negative Ground, and did you communicate that to the Tank Repair Co.?
    StudeRich
    Second Generation Stude Driver,
    Proud '54 Starliner Owner




  6. #6
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    Quote Originally Posted by StudeRich View Post
    Are you running 6 Volts Positive Ground or 12 Volts Negative Ground, and did you communicate that to the Tank Repair Co.?
    .
    I'm not sure what information I should communicate to them. Why does it matter whether it's a positive or negative ground system when restoring a gas tank Thanks for your reply. Now I'm curious.

    Mark in Ohio

  7. #7
    Golden Hawk Member StudeRich's Avatar
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    Very simply, because THEY replaced the Sending Unit! How many OHM's was it?

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