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68 cj5 generator wiring

Discussion in 'Early CJ5 and CJ6 Tech' started by jaysplace, Jul 14, 2013.

  1. Jul 14, 2013
    jaysplace

    jaysplace Member

    North, South...
    Joined:
    Jul 1, 2013
    Messages:
    80
    I tried a search and looked at tons of stuff but couldn't find the one thing I needed. On my regulator I have a small gray wire that runs into the tub under the dash and wondered if anybody knows where it goes or what it does? I have pics but not sure if they'll help in this case due to the PO chopping everything he could in an attempt to act smart.[​IMG]
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    [​IMG]
    The wire in question is on the top arm terminal and runs across the firewall and into the tub.
     
    jaysplace, Jul 14, 2013
    #1
  2. Jul 14, 2013
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,124
    There should be a wire from the regulator armature terminal to the "generator" light on the instrument cluster, the other wire from the light goes to the ignition switch "ignition" terminal. What happens is that when the generator isn't producing power the armature is effectively at ground potential, power from the ignition switch flows through the light to the armature & it lights up. When the generator is producing full power the arm terminal is at full potential, same voltage that's applied to the battery & ignition switch so no juice flows & the light is off.

    Here's a wiring diagram, top to bottom the regulator is armature, field & battery. The fourth wire to the mounting tap is a ground jumper to equalize the ground potential betwen the genny & regulator- things will work without it but they work better with.


    H.[​IMG]
     
    Howard Eisenhauer, Jul 14, 2013
    #2
    NH Charlie likes this.
  3. Jul 14, 2013
    jaysplace

    jaysplace Member

    North, South...
    Joined:
    Jul 1, 2013
    Messages:
    80
    Thanks for the info. I looked at several diagrams but none of them mentioned the wire to the light. The rest of it I can do myself but that wire had me stumped.
    jay
     
    jaysplace, Jul 14, 2013
    #3
  4. May 1, 2022
    NH Charlie

    NH Charlie Member

    New Hampshire
    Joined:
    Mar 23, 2022
    Messages:
    66
    Thanks you Howard, this old thread will come in handy as I put my Jeep back together.
     
    NH Charlie, May 1, 2022
    #4
  5. May 1, 2022
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,124
    You're Welcome :)
     
    Howard Eisenhauer, May 1, 2022
    #5
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