Charging issue with 71 Satellite.

[LEADDIN]

It is me again. Same car different issue. American Autowire Power Plus 20 harness I just Installed. Car left Saturday and showed back up on a tow truck Sunday. Customer went on a highway cruise then stopped for 20 minutes then car wouldn't start. Had to get a jump start. Car got here and here is what I found. Alternator is full power even with key in my pocket. I learned from my late thread and got pictures. I also learned the alternator is external voltage regulated. How do I tie the regulator into the system? Plus solve the alternator issue. Just noticed this alternator is holding power with negative cable off battery. Pictures in my reply.

 

[LEADDIN]

Here is the voltage regulator. Brown wire on left post on alternator Is from the fuse box labeled alternator ignition.

 

[JG71B]

Get a fsm and be certain things are going to and fro as designed. Also, is that a well known company that makes the harness?

 

[LEADDIN]

Get a fsm and be certain things are going to and fro as designed. Also, is that a well known company that makes the harness?

Fsm won't help went down that road with my earlier electrical thread. I know the wiring is not routed right since my voltage regulator is not tied into the system. Yes American Autowire is well known. At the 2 shops I work at all we use is American Autowire harnesses.

 

[JG71B]

Ever install one in a mopar before this?? I mentioned the fsm thinking you could use it to just wire in the regulator as designed. Sounds like more goin though. No experience with the aftermarket harnesses, thats all I got sorry! I do know when I had low voltage similar to that and the battery wouldnt charge, I had the same Chinese regulator, new. Didnt last a month

 

[RJRENTON]

WHAT alternator are you using??? It appears to be a later Nipondenso design rather than an origional Mopar isolated field round back alternator that was standard for a '71 model. Your pix show a firewall mounted regulator with nothing connected to it. Does the alternator have an internal regulator like a Powermaster unit? Remember that the battery post connection of the alternator ALWAYS has 12 volts on this point when the battery is connected. Never heard of your wiring harness supplier.....do you have the correct harness??
BOB RENTON

 

[451Mopar]

If the smaller red wire on the alternator is going from the alternator output to a field brush, that is wrong. Only the large output going to the battery should be on the output terminal.

If the Key-On-Ignition is the Brown wire, it should goto a field brush like it is, and also to the voltage regulator (usually Blue wire on the triangle connector).
The Blue power wire to the regulator serves two purposes. 1 - It powers up the regulator, and 2 - it senses the voltage it is regulating to.
The green wire from the regulator connector would go back to the other alternator field brush.
The regulator controls the fiels current through the green wire to ground using the regulator case as the ground connector, so make sure the regulator case has a good ground.

 

[LEADDIN]

I am not talking down to any of you just acknowledging y'all one at a time respectively. I appreciate y'alls help. TRULY DO.

Ever install one in a mopar before this?? I mentioned the fsm thinking you could use it to just wire in the regulator as designed. Sounds like more goin though. No experience with the aftermarket harnesses, thats all I got sorry! I do know when I had low voltage similar to that and the battery wouldnt charge, I had the same Chinese regulator, new. Didnt last a month

I have installed a handful of this companies harnesses in Chevrolet's and Ford's. This is the first MOPAR I have EVER done a wiring harness on. Not the last. I got a 69 Roadrunner to do next. I did go and look at a fsm and a wiring schematic and I got even more lost.

WHAT alternator are you using??? It appears to be a later Nipondenso design rather than an origional Mopar isolated field round back alternator that was standard for a '71 model. Your pix show a firewall mounted regulator with nothing connected to it. Does the alternator have an internal regulator like a Powermaster unit? Remember that the battery post connection of the alternator ALWAYS has 12 volts on this point when the battery is connected. Never heard of your wiring harness supplier.....do you have the correct harness??
BOB RENTON

Yes a Nipondenso design. Customer is deciding if Powermaster is the way he wants to go. I took the harness out of the brand new box.

If the smaller red wire on the alternator is going from the alternator output to a field brush, that is wrong. Only the large output going to the battery should be on the output terminal.

If the Key-On-Ignition is the Brown wire, it should goto a field brush like it is, and also to the voltage regulator (usually Blue wire on the triangle connector).
The Blue power wire to the regulator serves two purposes. 1 - It powers up the regulator, and 2 - it senses the voltage it is regulating to.
The green wire from the regulator connector would go back to the other alternator field brush.
The regulator controls the fiels current through the green wire to ground using the regulator case as the ground connector, so make sure the regulator case has a good ground.

Thank you. I am going to run the wiring the way you say till the customer decides on if he wants to change to a Powermaster.