Wiring harness replacement - NCRS Discussion Boards

Wiring harness replacement

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  • Randy Adams

    Wiring harness replacement

    This may have been covered before but being fairly new I need to know if it is possible to replace the wiring harnesses with the body on and everything operating. I have no problems now but 40 year old wiring is brittle. How many can I replace with limited mechanical knowledge. I'm not afraid to try.
  • Mike M.
    NCRS Past President
    • May 31, 1974
    • 8365

    #2
    Re: Wiring harness replacement

    go for it. its not neurosurgeon required mentality. simply get a good grasp of the location and routing of the original harness. good luck, mike

    Comment

    • Rob A.
      Expired
      • December 1, 1991
      • 2126

      #3
      Re: Wiring harness replacement

      Take the time to record where all your connections go. I wish I had done that instead of relying on my ability to read the electrical diagrams when installing my new wiring harness. Save your plastic ties, as the replacements I got (from Long Island) are not as soft as the originals and don't fit into the holes in the fenders as tightly as your originals.

      Comment

      • Kent K.
        Extremely Frequent Poster
        • December 1, 1982
        • 1139

        #4
        Re: Wiring harness replacement

        Randy,

        Suggest you replace the harness in steps as you remove the original. Start at the main connections and work your way toward the ends. Another way is to video or photograph everything, check the recordings first for color clarity and a complete understanding with written notes as to what connects where and tag the original harness as you remove it. Lay the reproduction harness out with the tagged original and tag the new one if not tagged by the vendor. Best of luck.

        Kent #6201
        Kent
        1967 327/300 Convert. w/ Air - Duntoved in 1994
        1969 427/435 Coupe - 1 previous owner
        2006 Coupe - Driver & Fun Car !!!
        NCM Founder - Member #718

        Comment

        • Randy Adams

          #5
          Re: Wiring harness replacement

          My big concern is access to the rear lamps. Is the gas tank going to have to come out?

          Comment

          • John H.
            Beyond Control Poster
            • December 1, 1997
            • 16513

            #6
            Re: Wiring harness replacement

            No, but removing the rear valance panel will improve access to the taillight sockets.

            Comment

            • Randy Adams

              #7
              Re: Wiring harness replacement

              All of you are great if you think of anything more please let me know.

              Comment

              • Rick S.
                Expired
                • January 1, 2003
                • 1203

                #8
                Re: Wiring harness replacement

                I replaced my under hood wiring harness on my 67 with no problems just by the simple method of taking off the old connector and immediately replacing it with the new correct connector. The best advice I got was to remove the hood. I also have limited mechanical experience. Rick #39266

                Comment

                • Randy Adams

                  #9
                  Re: Wiring harness replacement

                  Rick, that's what I like to hear.

                  Comment

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