If you are still having this problem I'd like you to try something. Unplug the voltage regulator (just below the solenoid) while the car is running. There is a remote possibility that a diode inside the alternator is shorted causing this problem. It is a very simple check anyway. Back in the 70's-80's I worked at an electrical shop and we did see this problem a couple of times.
Hey Bob...this thread is pretty old. I would hope he figured out his problem by now. Are you board Ray?...or are you just trying to increase your post count on someones goof?
yeah real old. it turned out to be the solenoid. Sorry I didn't reply that it had been fixed. project still not done haven't done hardly anything in past year. I need a month or so of free time to have it ready for paint, then about 3 months to put it back together. then another week or so to put all the leftover parts in boxes marked with a big "?"
Thanks guys. I replaced the solenoid. 6.1 V to the coil and 0V to it when the key is off. That weas the prob