fuel sending unit

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  1. Garry

    Garry Well-Known Member

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    Anyone know where to find a NOS fuel sending unit for a 64 barracuda . china repops are junk , improper ohm readings for mopar . need one real bad.
     
  2. toolmanmike

    toolmanmike Moderator Staff Member FABO Gold Member

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    Looking for a sender? You need to start a parts wanted thread.
     
  3. wheelsport

    wheelsport Well-Known Member

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    I bought mine from Rock Auto.
    AUTOTECNICA DG0514087 {#4051004, DG0514087} Info
    5/16" outlet w/o return. This unit has the proper ohmage of 10 empty and 80 full. $49.79
     
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    • 66jim

      66jim Well-Known Member

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      Please report back on its accuracy, I see is the correct empty/full resistance but everywhere in between empty/full? I don't think anyone manufactures one that works properly.
       
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      • wheelsport

        wheelsport Well-Known Member

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        Go to Rock Auto and check the numbers are all there.
         
      • 66jim

        66jim Well-Known Member

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        I see on Rock Auto the rheostat ranges from 10-80 ohms. i installed an aftermarket similar Chinese sender and yeah it reads empty and full but anywhere else is no mans land. The rheostat (variable resistor) is wound in an even or linear fashion unlike the original which is uneven shaped or non linear.
         
      • 67Dart273

        67Dart273 FABO Gold Member FABO Gold Member

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        ^I'm doubtful^ Nobody I know of has found a source for "modern manufacture" senders that have the proper what is called "taper." The resistor is NOT linear originally, it is a NON linear taper design, and all the repops anybody else has found are all "more linear" meaning, not accurate through the range. It is not just the beginning and ending resistances.
         
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        • pishta

          pishta I know I'm right....

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          rewind your old one. The original had a triangular bobbin the wire was wrapped around to emulate the shape of the tank (fat bottom, narrow top in volume) so the sender had shorter wraps and wider apart where the float is highest because the float swing faster when there is less fuel volume changing level. the shorter wraps reflet smaller changes in the gauge. When the full footprint of the tank is now the fuel level (1/2 full?) after it gets under the spare well. then the change gets smaller and the wires get finer spaced. I belieive that's the case trying to visualize my old one that had the sense wire wrap rotted off and the wiper was jacked too.
           
        • Brooks James

          Brooks James VET, CPT, Huey Medevac Pilot FABO Gold Member

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          You can buy an adjudtable resistor and keep ur stock gauge
           
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          • 66jim

            66jim Well-Known Member

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            There is a lot more to it than just adding a variable resistor.
             
          • Brooks James

            Brooks James VET, CPT, Huey Medevac Pilot FABO Gold Member

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            OK Will byte, educate me !!
             
          • 66jim

            66jim Well-Known Member

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            Search this topic on aftermarket sender problems, it has been an ongoing issue for years. The fix I believe is either an NOS sender or extra circuitry in line with the aftermarket sender to correct this linear resistance difference. The extra circuitry I
            think is called Meter Match. This is the extent of my knowledge of this.
             
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