I have a 1977 CJ-5 (number six of seven CJ's). Pretty much I have done a lot of user friendlier modifications over the years (since 1991).
"Mr. Jeep" is my daily driver. "Willy", my 1946 Willy's gets driven every chance I get.
I have many diagrams, some that may aid you, sometimes it is hard to know how yours has been modified, things could be tricky.
I got rid of the original Prestolite parts that always gave me some kind of trouble always at the worst of times.
I upgraded to the Motorcraft system which came to be in 1979 in CJs. This is the best thing I ever did for Mr. Jeep, it never gives me trouble.
Recently I aided another guy on here, I made him a few diagrams so that he could tie into his 1977 wiring and upgrade his ignition to Motorcraft also.
For now, I am sending a few diagrams I made for him about the ignition, maybe you will understand them, if not just ask me!
1976-1978 used Prestolite - there was no resistance wire, I use a ballast resistor to take its place. This allows me to keep everything else to 1979 parts (If I need something, I tell them it is for a 1979). I could have went with another type coil, but that just complicates the whole show. I use the KISS method whenever possible, "Keep It Simple Stupid".
Here are some diagrams, I can make some specifically for you if you need them.
Need help with the alternator connections?
I hope I can help!
The Medic
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Sunday, July 8th, 2018 AT 9:25 PM