simplyconnected - I have a question about the procedure you discussed. My generator is putting out about 1 volt. I pulled it and found that a brush spring was broken and the arm that pushed down on the brush was loose inside the generator. I saw no damage to anything so I replaced the spring and put it together after cleaning up the commutator. I decided to try polarizing the generator by removing the field wire at theregulator and touching it to the battery connection at the regulator. It instantly became too hot to hold.....a lot of current flowing. In your answer below you talk about the same connection being made for up to two minutes. Does this indicate I have a shorted filed winding?