DUI Distributor Wiring Help

[Nomad127]

I need some help her guys. I've recently purchased a '73 CJ5 and I'm quickly finding out that the PO is a complete knucklehead....of course. Previously, the red wire from the distributor was loosely connected to one or both wires coming from the main wiring bundle (i.e. rats nest) but I'm not sure which one or both. Any help would be greatly appreciated.

 

[Cheepjeep85]

To run the dizzy all you need is one ignition switched pos wire this can be taken off of the solenoid on the fender, if your wiring harness is a hack job. Im not 100% sure on those two wires you have there. But if it were mine id cap those and pull it from the solenoid.

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[Nomad127]

That would make sense. There isn't a wire going from the solenoid to the distro and I don't have a tach so that's not it either. Which part of the solenoid do I attach it to?

 

[Cheepjeep85]

One of the small terminals on the side I can't remember which one. One is "start" the other is "run", get you a test light and test each terminal.

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[Nomad127]

Thank you, Sir.

 

[BusaDave9]

That wire need 12 volts only when the jeep is running. Make sure you aren't just running 12 volts from the battery.

 

[73CJ]

Stock

DUI wiring

Check out: Classic Inlines - DUI Distributor Installation

 

[BusaDave9]

DUI wiring

Check out: Classic Inlines - DUI Distributor Installation

Cool
So the ignition no longer turns on the ignition directly. It turns on a relay that powers the distributor with a more direct wire to the battery. A higher voltage at the distributor means a hotter spark.
Good idea.

 

[Nomad127]

I now have the hot wire running from the relay to the dizzy like in the DUI version of 73CJ's diagram. Still haven't figured out what the other wires go to but I now know they have to be connected together to get any ignition. Thanks for all your help guys.

 

[Cheepjeep85]

Yeah wiring it into the solenoid does give it a more direct line to the battery but still controlled by the igntion switch. That'd the way I wired my hei, my current tfi setup is wired the same way.

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