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  • wiring for 78 cj

    Does anyone know where I can find a wiring diagram that can be followed? I have a Haynes manual but the wiring diagram is not very clear. I am having some problems with the electrical in my 78 CJ7 304. I replaced the coil, solenoid and plug wires but still no fire. The rotor turns and there is good electrical flow. Guess the distributor has a problem. Any ideas.

  • #2
    all from a 78 factory service manual

    http://img.photobucket.com/albums/v1...lin/engine.gif
    http://img.photobucket.com/albums/v1...n/image002.gif
    http://img.photobucket.com/albums/v1...ash_wiring.gif
    http://img.photobucket.com/albums/v1...jeep_dwg_4.jpg
    http://img.photobucket.com/albums/v1...wiringlist.jpg
    http://img.photobucket.com/albums/v1...wiringassc.jpg

    did you try the box for the dizzy

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    • #3
      Fire...

      Fuzz to the rescue with the drawings again!!!

      After you check to make sure voltage is in all the places that it's supposed to be, try the little electronic ignition pack thingy... Good luck!

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      • #4
        haines has that same diagram. ive got a haynes manual for my CJ5 and the wiring diagrams are all in there..some times i do need a magnafying glass to see em though i know. especially when they get to a 78..its too packed. my 74 CJ5 has a 73 diagram which means no fuse block which is great.

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        • #5
          Still having any problems?
          I have a 78, ripped the wiring away from it relentlessly.
          Rewired according to my specs.

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          • #6
            I have a 78 also, done away with everything. GM HEI distributor, one wire and your done. Absolutlely awesome way to go.

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            • #7
              I Just dealt with the no-fire issue with my 79 CJ7, and I have a brand new painless harness-the only way to go. Definitely check your electronic ignition module (the box on the fender). I went thru a new TFI coil and two ignition boxes in the last week. I guess the coil could have just been bad, but two NAPA ignition boxes? something fishy goin on...

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