Ron, have ever noticed labels instructing not to charge a dead battery with the engines alternator? The reason is for the alternator to operate it must had a minimum of 12 volts D.C. This voltage is to excite the field coils. Dead battery and no excertation, no out put. Low field coil volts and over worked and overheated coils. In your case the field coils seam to be excited from a failty regulator. Your alternator is trying to motor. Do yourself a favor and go to M/B for a new alternator(you will have to remove your old pulley and install it on the new alternator, and the new one doesn't use the pulley shaft key).Happy Trails Beep Beep from charged up Houston.
no motor in my alternator