making wiring harness from scratch

Electrical and Ignition

  1. Riddler

    Riddler Project EH-Body

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    No problem. If you know someone who does CAD work they could make some for you. Then it's just a matter of getting a hot glue gun and black glue.

    Riddler
     
  2. mech1nxh

    mech1nxh CUSTOM TITLE FABO Gold Member

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    X2 Riddler, :-D THX !!

    Done custom wiring for eons, boy oh boy would this have saved me some
    grief!!
     
  3. slantsixdan

    slantsixdan =..=

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    That SpliSeal setup looks pretty slick! Also take a look at the Posi-Lock line of connectors, taps, fuseholders and such. I like 'em a lot; see the Allpar article.

    For factory-type terminals and parts, peruse pages 43 and 44 of the Terminal Supply Co catalogue.
     
  4. mech1nxh

    mech1nxh CUSTOM TITLE FABO Gold Member

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    Looks like the Deutsch line of products. (which I have used many, many of.)

    For simplicity very nice, longevity, quite another issue.

    I mean no lack of respect slantsixdan, just my experience .

    The absolute Bane of current flow (read performance) is voltage drop
    through connectors.
     
  5. slantsixdan

    slantsixdan =..=

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    My oldest installations of the Posi-Locks that I still have in service were done in 1997 and are still fully intact without voltage drop or other problems. I don't know how similar or different they are to the Deutsch connectors you've used, but it sounds like you have not used the Posi-Locks. So I'll make ya a deal: I won't comment on the Deutsch line 'til I have some experience with them, and...! ;-)
     
  6. Super T

    Super T Thisfieldistooshort

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    Does anybody know where to source new replacement connectors for all the stock connectors? I will be building a complete car harness from scratch and would prefer not to reuse the 35 year old connectors. My only option so far is to buy a complete new harness from Year One for $250 and cut it apart - for obvious reasons, I'd rather not pay them to build it just so I can tear it up.
     
  7. blue missile

    blue missile Well-Known Member

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    Super T,
    you can use the old plastic, just pull the brass and go to www.riwire.com and get new brass either crimp or solder. I think ours is listed under the Ford blades in components.
    Andrew
     
  8. slantsixdan

    slantsixdan =..=

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    Read post #28 in this very thread.
     
  9. superchargeddrt

    superchargeddrt Well-Known Member

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    Hey Guy's

    I don't know if this helps but theses are the wiring diagrams from my 1969 Dart original service manual. Sorry that they are not perfect because they are scanned from a book.

    Enjoy

    LR Dart Dash Wiring 1 of 2.jpg

    LR Dart Dash Wiring 2 of 2.jpg

    LR Engine Compartment Wiring 1969 Dart.jpg

    LR Front End Wiring 1969 Dart.jpg
     
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    • blue missile

      blue missile Well-Known Member

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      Hey Guys,
      I thought I would up date the progress on the harness.
      I have the stuff starting to accumulate, thanks to the posts here I have sources for the rest of the connectors, I just still have to find reasonable priced male halfs to the round mil-spec bulkhead connectors in the pic. On average these connectors cost around $50ea, I got the females BCs for $3.
      The blue connector is a 30pin for the console wiring harness allowing me to work on that at a separate time. The spools are the traveler cable, and the other stuff is the rear lighting harness and high Amp relay modules.
      Andrew

      wiring supplies 003.jpg

      wiring supplies 004.jpg

      wiring supplies 001.jpg

      wiring supplies 002.jpg
       
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      • Super T

        Super T Thisfieldistooshort

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        Damn, I missed that 28 :) Thanks, that helps a lot. I plan on a military 24-pin twist-lock instead of the factory 3x8 pin connectors. But the actual device connectors will be a huge help!
         
      • blue missile

        blue missile Well-Known Member

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        I hesitate to resurrect this thread because of someone who has already participated.
        But,..... here are the progress pics from the wiring harness work.
        I first labeled all of the conductors (more than 30) and then disassembled the factory connectors to reuse the crimp ends.
        In most cases I increased the size of the wire a couple of gauges. I reassigned some of the conductors Im not using for the airbag to the horn. This allowed me to split the feeds from the paddle shifters, so that the up shifters are separate from the down shifters circuit wise. I can always recombine them at the other end.
        Because I still dont know what it will take to integrate the paddles with the 545RFE its easier to leave myself all possible options.
        Andrew

        View attachment Photo327.jpg

        View attachment Photo343.jpg
         
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        • 4spdragtop

          4spdragtop CONGRATS NORTH AMERICA! FABO Gold Member

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          Bump for a very informative thread, any updates?
          I'm planning on DIY our 67 and 69 cuda dash harness.
          Factory 67 manual doesnt have a barracuda schematic for reference, but I have the supplement. BUT supplement doesnt give wire gauge sizes??
          The Valiant schematic has the gauges, I would think they are same as barracuda?
           
        • matthon

          matthon Well-Known Member

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          Fyi, I used a combo of existing harnesses with a Painless 7 fuse block, which replaced my stock fuse block.
          Added pos and neg hubs.
          Even with only 7 fuses, I have a stereo, efi, and items that were not originally fused are now, like the heater and light switch.
          I posted it all here, somewhere.
          Bought this laminated colored diagram years ago, which was a great tool.

          20180108_215235.jpg
           
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          • 4spdragtop

            4spdragtop CONGRATS NORTH AMERICA! FABO Gold Member

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            Ok couple questions while I stock up supplies.
            1. I have a good selection of 14 gauge wire. Is it ok to sub this in where the 16 gauge is called for? Bigger is better, but I wasnt sure how much more "awkward" it would make the harness? Also I believe most connectors are the same size 14 vs 16?
            Question 2. What are the open ended connectors called in dash? Pic attached
            Thanks
            Steve

            20200122_135851.jpg
             
          • 340demon72

            340demon72 FABO Gold Member FABO Gold Member

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            Hey 4spdragtop

            A little about factory service manual wiring diagrams. You can tell the wire gauge by the circuit identifier. Here's a section of the '72 Demon rear harness diagram. In the circuit identifier B2-18V, the B2 is the circuit name (so you can follow it page to page if necessary) and the 18V denotes 18 gauge wire, Violet in color. You might see a color identifier such as ODGN* that would be Orange with a Dark Green tracer. The wire gauge is predicated on the fuse protecting it and the expected draw, of course. So you should be able to get the info you need from a similar car/year wiring schematic by looking at corresponding lights, gauges, accessories etc.

            Wiring Diagram 1.jpg

            Wire color.jpg
             
            Last edited: Jan 22, 2020
          • sport74

            sport74 Well-Known Member

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            Just here to learn
             
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