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Showing content with the highest reputation on 08/08/19 in all areas

  1. Back to the beginning. If you look at the wiring diagram, the reverse light circuit is tied to the Accessory bus in the fuse panel. The circuit also feeds the wiper motor. Out of the 20 amp fuse (stock) there's a Blue/Red (LR) that runs through the dash harness -> engine bay harness -> wiper motor. There is a Red (R) spliced into the LR at some point that also (stock) runs through the dash harness to the engine bay harness. Stock, the wiring to the reverse switch on the transmission comes out of the loom about the same spot the wiring to the wiper comes out and runs under the trans tunnel on the right side to the switch on the transmission. A Red/Black (RB) comes out the other side of the switch and back along the same path that the Red went out. Once it's back inside the cabin, the RB connects to the body harness and goes back as power (+12v) to the reverse lights. The lights get their ground from back under the hatch (tied to the sheet metal somewhere IIRC) In your case the red should be connected to that 20 amp fuse output that also powers the wiper motor. The black is NOT a ground (if it's coming from the other side of the reverse switch) - it should connect to the Red/Black that's going back to the reverse lights. (I would not do it that way - as it's confusing to anyone else working on the car. Black in a Datsun should always be a ground. If you can't run it RB, use R - then people will at least know it's probably power) (A switch is merely a break in a wire - it is NOT "one side hot, one side ground". So, in this case the Red/Black is just a continuation of the Red wire. The reverse switch is there so the light only comes on when the transmission is in reverse. The reverse switch breaks the wire apart when not in reverse, and "puts the wire back together" when it is in reverse.) This is a very simple part of the process. I just learned most of the above looking at the wiring diagram and remembering how the wires hook up to my transmission. (OK, I have a little stronger background in Z wiring, I admit...) But, If this is too much, you'll need to get someone else OR - like they stated above - spend a good deal of time in learning. IMO an EZWire kit will not make this process simpler but at least it will be new wire - which is always a plus... You'll still need to understand how all these components are wired - and why. The dash harness (there are actually two separate harnesses strapped together as one assembly) is mildly complex - gauges, lighting, multi-function switches, ignition, fuse panel, flashers, stop lamp, hazard switch (OK, now I'm just being an a-Hole...). How do you eat an Elephant? One bite at a time. This can be done - one step at a time.
    1 point
  2. Bend the bar. If you have a press you can bend them pretty easily. Surprisingly easily.
    1 point
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