This is a lot of good stuff. I am going to have to take some time to digest it and see what I want to do. I noticed that based on my description of the spike in the ammeter that you have not suggested a reason for this behavior, leading me to believe that there is no one single reason for this type of behavior and correcting it is not a simple tweak. It puzzles me that I have put two new VR on the tractor and both reacted the same way the ammeter needle went off the chart. This would lead me to believe that the components that make up this circuit do not match and that there may be a mismatch between the VR and the generator. (A circuit generator vs B circuit VR) I really appreciate your help and the information you have provided. The tractor is on hunting property and won't be able to try any of this until I can get back there. The generator only gets very hot when the tractor is running, One final thing I did before leaving the hunting land was I disconnected the field wire on the generator and then ran the tractor. The ammeter then does not move(no spiking), the generator does not get hot, and the voltage across the battery post on the running tractor reads 9-10 volts. I am guessing that would mean the generator is creating a charge, but the VR is not functioning and closing the set of points(because I disconnected the field wire)that causes the ammeter to spike and overheat the generator. Thanks again for you thoughts.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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