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Tach with 5 wires???

Discussion in 'The Hokey Ass Message Board' started by mustang552, Jul 8, 2011.

  1. mustang552
    Joined: Nov 29, 2008
    Posts: 170

    mustang552
    BANNED

    Can someone tell me how to wire an old (I think SUN, no name or numbers anywhere inside or out) tach? It has a red, a white, a blue, a yellow, and a black. I hooked up the red to 12 volts, the black to ground, and the green to the distributor side of the coil. did not work. I can't find anything on it on the internet. Please help!
     
  2. 4dFord/SC
    Joined: Sep 12, 2004
    Posts: 832

    4dFord/SC
    Member

    A picture would help. At a guess, blue is for the light.
     
  3. Jobe
    Joined: Oct 19, 2004
    Posts: 1,248

    Jobe
    Member
    from Austin, Tx

    If it's an old tach it probably needs the transformer or whatever the other part was called that came with them.
     
  4. Normal Norman
    Joined: Aug 9, 2006
    Posts: 510

    Normal Norman
    Member
    from Goshen IN.

    I had an older tach not long ago(not a sun) that had 5 wires. The usual 3 went to +, coil,and ground. The remaining 2 went to light and ground for the light. I had to remove the unit from the cup to figure out what went where. Perty easy after that. Normal Norman
     
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  5. smarg
    Joined: Nov 18, 2008
    Posts: 1,069

    smarg
    Member

    Nailed it. This stuff called technology did away with that extra stuff. :D

    You would be better off buying a new retro sweep tach or whatever it is.
     

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