I agree with Jeepster, sounds like the alternator is ok. I would pull the cover on the regulator and check the points and inspect the coils. Sometimes you can spot a problem with the coils such as overheating etc. and see if the points are pitted or carboned up. You can clean them with a points file but they never last long after you knock the factory edge off them. I would just replace the regulator if it were me as it is more than likely almost 35 years old anyway.
Mike
|