Can We Make This 1969 Union Pacific F7 Run? Seized Motor...

This locomotive was found in an eBay lot and didn't seem to wanna run anymore. It was conducting electricity nicely however the motor was pulling over two amps and it wouldn't budge. It was clear the engine was seized but it wasn't clear why since it looked super clean.

Usually this would be caused by lubricant drying out over time, causing it to harden however in this case something had broken inside the motor causing it to carve up its magnet. The shavings of the magnet jammed the motor up badly and it would no longer turn.

I had no idea if the motor would work after being rebuild since there was a chance that the coils had gotten cooked not being able to turn properly but luckily the armature turned out to still be in good shape.