i just bought a new alternator and the three wires that connect from the alternator to the wiring harness are not matching colors. The wires coming from the fuse box are a solid white, a white with red stripe and a black with yellow stripe. The wires from the alternator that go into the back of the couple are a solid white, a white with blue stripe and a white with a green stripe

Three wires coming from fuse box
http://i197.photobucket.com/albums/aa166/billyahl/Picture126.jpg

Three wires going into connector from new alternator
http://i197.photobucket.com/albums/aa166/billyahl/Picture145.jpg

I bought a service manual for it. but they do not mention anything about the color of the wires. The wires coming from the wiring harness are original. i am hoping that they would be the same color on all the 86 trooper TD's. If anyone can look at the three small wire set that goes from the fuse box to the alternator and tell me which of theses wires are plugged in to each of the three connectors.

Pic of connector coming from new alternator
http://i197.photobucket.com/albums/aa166/billyahl/Picture128.jpg

Pics of wires from fuse box after new conn. were added
http://i197.photobucket.com/albums/aa166/billyahl/Picture156.jpg

Service manual illistration
http://i197.photobucket.com/albums/aa166/billyahl/Picture160.jpg

Any Help would be greatly appreciated.

I am up against the same thing with my conversion. I don't know why isuzu didn't put any colors in their wiring diagrams. I have the factory service manuals, and nothing <img src="/forums/images/graemlins/frown.gif" alt="" />

I am going to get it figured out this weekend and I'll let you know though. I think I can figure out what wire is what with my voltmeter.

One should be the exciter (keyed power), probably the larger of the three. One should be the feild, and the other is probably for the dash light.

Are you using the factory Electrical Troubleshooting Manual or the service manual (assuming there are separate manuals for your application; there are for the Trooper I've got)? The ETM has all the wiring information you'll ever need, information the service manual glosses over or omits entirely.

if you still havent got it run to a altinator place they may be able to help you or you can have then switch the electronics on it to just have one lead that goes strait to your battery i had to have my altinator upgraded due to having a 1750w sterio was to much for the old one and the guy just put a regulator with a lead thats strait to + on battery

Taken from another post on my conversion.....might help you.