Gas Tank Sending Unit

Discussion in 'Fuel and Air Systems' started by TF360, Sep 28, 2018.

  1. TF360

    TF360 Well-Known Member

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    Has anyone had success with a aftermarket sending unit? If you installed one and it works properly with your gauge-let me know what brand you installed. Or do none of them work right? Thanks
     
  2. mvh

    mvh FABO Gold Member FABO Gold Member

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    AFAIK none of them work right. They are "generic" in the sense that the windings on the board are a linear progression -- the factory ones had a varying winding pattern to compensate for the internal shape of the tank (which has the spare tire cutout in the upper half). They also use a different pivot point for the float arm, and the arm is shorter. You would practically need to interpose a custom computer algorithm to make it read correctly on the gauge. Save your old ones and rebuild them! Even if the board is crap, you could use it as a pattern to wind a new board that would at least be close to accurate.
     
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    • 340joe

      340joe Active Member

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      JOHN WOLF & CO. INC.
      36420 BILTMORE PLACE
      UNIT #1
      WILLOUGHBY,OHIO
      44094
      440-942-0083
      Call these people they fixed mine works great
      340joe
       
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      • Dana67Dart

        Dana67Dart Most undignified way to get to Colorado!

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        One of the problems I experienced with aftermarket was the throw was less than OE and would read full for 1/4 to 1/2 tank. no way to adjust for that with a add on gauge adjuster. ( same for the bottom end after the fuel level would be below the float)

        A member here setup a display that shows this... do a search, it was in the last few months.
         
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        • TF360

          TF360 Well-Known Member

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          340 joe- He fixed your old one?
           
        • crewchief

          crewchief A & P Mechanic

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          I have found that aftermarket sending units are linear. Mopar sending units are all non-linear. If you have an old OEM one, you can get them rebuilt. Here's a pic of the non-linear type.
           

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        • Ott

          Ott FABO Gold Member FABO Gold Member

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          Has anyone tried a floatless sending unit like the Tanks Inc. one?
           
        • famous bob

          famous bob mopar misfit

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          So what does it cost ??