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6V Fuel Sender on 12V Jeep.... eh?

Discussion in 'Flat Fender Tech' started by evanjm, Oct 9, 2006.

  1. Oct 9, 2006
    evanjm

    evanjm Yeah, it's got an F-head.

    Leesburg, VA
    Joined:
    Sep 13, 2006
    Messages:
    408
    My '48 2A has been converted over to 12V by the previous owner. I put in a new fuel tank and want to put in a new sending unit. The only ones I can find, however, are 6V.

    What I want to know is how do I get this to work? Isn't there some sort of a "reducer" or "resistor" that I can put on the line to make it work?

    Or if someone knows where to get a 12V version, that'd be cool! haha

    Thanks,
    Evan
     
    evanjm, Oct 9, 2006
    #1
  2. Oct 9, 2006
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,362
    Re: 6V Fuel Sender on 2V Jeep.... eh?

    6 volt, 12 volt, or 24 volt. All of the fuel gauges can use the same sending unit. The only difference is the gauge.
     
    scott milliner, Oct 9, 2006
    #2
  3. Oct 9, 2006
    neptco19

    neptco19 That guy....

    Athens, GA
    Joined:
    Sep 26, 2003
    Messages:
    1,381
    Re: 6V Fuel Sender on 2V Jeep.... eh?

    I know when I ordered my replacement tank they had the original tank with the 5 screw hole sendig unit (6volt) and they had a 6 screw hole sending unit (12 volt). So there is some diff. in the 6 vs 12 volt sending units.
     
    neptco19, Oct 9, 2006
    #3
  4. Oct 9, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    Re: 6V Fuel Sender on 2V Jeep.... eh?

    It's not the sending unit, it's the gauge; All the sending unit is is a rheostat to change the resistance value. If you want to use a 6v gauge in a 12v vehicle, you need to add a voltage-dropping resistor in the line to make the gauge happy. All the jeep parts places carry them.
     
    w3srl, Oct 9, 2006
    #4
  5. Oct 10, 2006
    evanjm

    evanjm Yeah, it's got an F-head.

    Leesburg, VA
    Joined:
    Sep 13, 2006
    Messages:
    408
    Re: 6V Fuel Sender on 2V Jeep.... eh?

    interesting. so if I get the sending unit listed as 6v it will work with a fuel gauge listed as 12v?
     
    evanjm, Oct 10, 2006
    #5
  6. Oct 10, 2006
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,128
    Re: 6V Fuel Sender on 2V Jeep.... eh?

    Not just any 12 volt guage, its one that is going to have to match up with the stock sender's resistance range. Do a search, someone recently posted a part number of, IIRC, an Autometer guage that works with the stock sender.

    H.
     
    Howard Eisenhauer, Oct 10, 2006
    #6
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