PRACTICE. PRACTICE. PRACTICE. Such was the advice of my guitar teacher when I was a kid. We all know that I did not practice because I have not been to Carnegie Hall. I have been practicing soldering.
I used the forsaken motor. As you can see the wire to one of the brush holders is beginning to fray and the connection is definitely in peril . I wanted to practice working in this small space and I wanted to see how close I would have to work to the field core. Pretty close, but it did not get hot. Here you see that the "original" repair is almost desoldered. I tried to free the white wire up some more, but could only get about another 1/4 inch freed up.
This is my whole set up: At the bottom of the photo you can just see the hemostat holding the wire steady. With the motor up on blocks I have plenty of room to get underneath the wires and solder. I have the alligator clip there as a "heat sink" to keep the heat from traveling to the field core. That is not an original idea. I am following Rain's advice (http://vssmb.blogspot.com/)