Yup, another fuel gage question......

Electrical & Ignition

  1. koosh

    koosh Well-Known Member

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    Anybody ever say the hell with broken original gas gage, and just buy an aftermarket fuel gage? If so, where/what did u buy, and do you have to change sender also?
    Thanks!
     
  2. dadsbee

    dadsbee Well-Known Member

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    Usually nothing wrong with the gauge, it's the new repop senders that everyone is fighting as the rheostat isn't wrapped correctly.
     
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    • koosh

      koosh Well-Known Member

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      So buy another sender? Any one sell a GOOD one?
       
    • dadsbee

      dadsbee Well-Known Member

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      Like Hen's teeth to find. Easy to verify your gauge works, just ground the sender wire to see it sweep, or better yet put a 10 ohm resister between the wire and ground and it should say full.
       
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      • Dibbons

        Dibbons Well-Known Member

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        Make sure to check your float. When my gauge began to mark empty for no reason, I later found the float had filled with fuel, making it ineffective as a float thereafter.
         
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        • koosh

          koosh Well-Known Member

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          I grounded sender from where wire attaches to it to body, fuel gage went to full....unhook ground, gage goes empty...should b about 1/2 tank presently....replaced voltage limiter too
           
        • koosh

          koosh Well-Known Member

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          I assume u would have to empty tank and remove sender unit to check that?
           
        • dadsbee

          dadsbee Well-Known Member

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          So there is nothing wrong with your gauge. Are you grounding the sender wire back at the tank.. or at the instrument panel. If panel, do it at the tank end to make sure you don't just have a wire issue. If your gauges work, your voltage limiter is fine and didn't need replacing.
           
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          • Dibbons

            Dibbons Well-Known Member

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            Yes, unfortunately I had to extract a lot of fuel first, than pull the sending unit. At least we didn't have to drop the fuel tank ('72 Bbody).
             
          • koosh

            koosh Well-Known Member

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            I clipped a wire to the terminal on the sender.....(original wire left on), and ran to fresh body ground on frame....
             
          • dadsbee

            dadsbee Well-Known Member

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            Okay good, now make sure you have a zero ohm ground path from the tanks SENDER HOUSING to the frame. There's a bonding "clip" about 6" long that should go from the sender fuel outlet to the fuel line (to cross the rubber joint). Sender gets it's ground from the fuel line being clamped to the frame. Quick check use that same ground point you just used and jumper to the SENDER face plate... see if your gauge now shows 1/2 tank or what ever fuel you have in it.
            beerestoration2018 285.JPG
             
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            • koosh

              koosh Well-Known Member

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              Will do! Unfortunately will be tomorrow nite, but stay tuned and thanks again!
               
            • moparnation74

              moparnation74 FBBO Gold Member FBBO Gold Member

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              The sender can be removed w/o removing the tank.....just make sure your fuel level is below the sender opening.......

              I have yet to have or hear of a new sender working properly out of the box and installed....
               
            • koosh

              koosh Well-Known Member

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              If i did decide to buy a new sender, is there one out there preffered?
               
            • 65-440

              65-440 Well-Known Member

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              I've been contemplating getting one from Bill Rolik, have heard his were spot on. My brand new el cheapo one has been nothing but trouble. Shitty reading from day 1 ....
               
            • moparnation74

              moparnation74 FBBO Gold Member FBBO Gold Member

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              I have gotten one from Everyone in the industry and they are all the same.......
               
            • 65-440

              65-440 Well-Known Member

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              Bill Rolik too ?
               
            • moparnation74

              moparnation74 FBBO Gold Member FBBO Gold Member

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              That's correct....
               
            • 65-440

              65-440 Well-Known Member

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              Well damn, I was hoping his stuff was the answer to a properly reading fuel tank .....
               
            • Jeremy Nelson

              Jeremy Nelson Member

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              Not to jack this thread but the gauge on my ‘69 RR shows way past full. Gauge comes up when you turn the key on and down when the key is off. It seems to just read excessively high. They gent who I bought the car from has said that it works just goes way out passed full when the tank is full. Says it’s close to empty at between 3/4 and full. Any of you have this problem?