View Full Version : 82 S&S restore....alt. question

09-12-2010, 10:40 PM
prestolite alt.--- four wires go to alt.the main feed is orange. I know the orange goes to large positive terminal on alt.(main feed) The other three are from the external regulator. The black is a case ground to alt. housing. That leaves a tan and a green. The open terminals on the alt are marked aux.and the other is not marked. The wiring diagram is no help because it doesn't show witch is witch. Motor is pcm 351 Windsor. Any help? thanks to all..... love this site ,Steve