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Sorry, I don't know the internals just that one spade will tell the alternator to increase output. Other than that I am flying blind. The parts store may have more info on it.
For the two spades T1 and T2 that connector clips to; T1 should be from the ing switch and T2 should be the voltage drop sense (the green wire) Problem is I can't find a diagram that shows which is which.
The green wire coming out of the voltage regulator (blue connector) runs to the back of the alternator. On the off chance that this wire is broken/melted/messed up you may want to back stab your ground to the green wire at the alternator connection. Just be aware that the two field wires are...
Did a little more digging on your alternator and from the back of the case it does look like the small stud is for a ground wire (I would verify that). The other thing I noticed is that the Field wires are marked F1 and F2. From your pictures it looks like the FLD wire is hooked in correctly...
Just so you know, there is not a lot of info on the web about this alternator and the wiring for it. I am not that familiar with this unit so I am only giving my experience info. You may want to go to the supplier and ask about the purpose for the small screw but if it was meant to be a ground...
Sorry about that. From what I found about your alternator, it should be case grounded so no ground wire to the little screw. Speaking of grounds, it looks like your alternator mounting brackets are brand new or at least have fresh paint on them. Being that the alternator is case grounded...
Just so we are on the same page you grounded the green wire in the blue voltage regulator connector to a good ground. Increased the engine RPM but got no increase in voltage at the battery. Correct
I see that my memory is not that good anymore, maybe 1975 was when Mopar switched to a shunted unit. IDK But now you have me thinking about it so I will have to hit the history books to find the date they were dropped.
Anyway a great source of information on the site when it comes to...
Okay here is video of how to take the voltage regulator out of the loop. You really only need to watch it until about 2:30 after that he starts doing some things that we don't care about. If you get good alternator output then you can be pretty sure it is the regulator or the regulator ground...
Quick question, your alternator, is that a REMY 20036? I ask because it only has one FLD stab with two wires going to it. I thought they are normally two separate FLD wire stabs.
You already have my first suspect in your hand. If the alternator tested fine at the shop, then one of the first variables not at the shop and only on your car would be your voltage regulator. That is where I would start assuming you already did all the load tests with you car running (all...