GM Alternator

Will,

I am running a one wire 105 amp GM alternator with the internal regulator which I bought through BNR Parts. The model I purchased was CS 130 D. It ran $100 plus shipping. I know that Eastwood’s and some of the vendors also sell a similar GM alternator.

I believe my “generator light” is working properly but since this is my first Pantera and the fact that it came in pieces, I am just assuming. My car is not here at the house, but from memory the light on the dash will light when the ignition key is turned one click but once the motor is running the light turns off. Is this the way it is supposed to function?

By the way, I spoke to Quella about the belt alignment with this alternator and he said that they shave down the main mounting ear slightly and then space it back slightly so that the alignment is straight.

Let me know if I can provide anymore information.

Yes, the gen light should be on when the key is "on" but the motor not running. It should go off when the motor is running. It's supposed to illuminate if the belt breaks or if the alt stops working.
Will

Will,

I installed the GM si12 alt. I'll email you all the details tomorrow.

Thanks,
EA

Will,

I had a chance to run down and work on my Pantera a little tonight. The generator light works just as I described previously.
I forgot to mention in my earlier post that I am running the alternator relocation bracket that moves the alternator behind the passenger seat firewall. This is the bracket that some of the vendors sell when you install the bulkhead reduction kit. I don’t know if this makes a difference in the model number of the alternator you use or not but I thought I would pass it on.

quote:

do you have 1 wire going from the existing 4 pin regulator plug to the "field" tab on the alternator?

Will,

With the CS-130 alternator, you only need to connect one wire to the 4 pin connector. Connect the charge indicator light wire to the "L" terminal.

John

anyone using/installing a GM alternator should read the tech articals at madelectrical.com a lot of good info about GM alt. with internal voltage regulator CRX MAN