3G Alternator Upgrade no S (White Wire) Terminal / Connection
I spent about 4 hours today getting my butt kicked by what should have been a very simple alternator swap, and no amount of internet searching on this forum and many other sites every yielded an answer, so I thought I would help the next poor sap out by logging what I found.
My 1-wire power master alternator really struggles at low RPMs, probably due to lack of an exciter wire, so I decided to swap it out for a 3G unit. I ordered the unit in April from Amazon, and as usual it set on the shelf for a while before I got around to doing the work. Since the case was the same as my 1-wire, all I had to do was clock the alternator, and modify the wiring a tiny bit to accommodate the ASI wires. The problem came when I got ready to hook up the Stator Wire (white wire) which should route from the S terminal on the 3-pronged plug back to the alternator on a terminal between the ASI plug and the battery stud. The problem, in every search phrase I looked for was:
3G alternator with no terminal for S wire to plug into
3G alternator missing stator terminal
3G alternator missing white wire connection
You get the idea.
It turns out, that even though the box said I had a part number for a 3G alternator, I had been given a 6G alternator designed to be used with an ECM to regulate the voltage.
Just in case this happens to anyone else.