Quote Originally Posted by kb2vxa View Post
Either that or a brush lost contact, possible commutator burn from arcing, so when you replaced them you restored contact. I've had that happen a couple of times.
That's the best guess I can come up with as well.

"Of course, when it comes to things like this, I am not a reasonable man, always sure that I can coax high performance out of pretty much any machine with my superior operating skills."
Sounds like a Tim Taylor quote!
We have some things in common. I repowered the garbage disposal with a Harley motor.