Quote Originally Posted by cowanrg View Post
cool, this is good information and pretty much what I expected. I will first try to shim the motor mount forward/backward to see if I can get the belt riding in the right spot. Then I need to address the bore on the motor pulley. It's definitely not concentric. I should have done them on a lathe, but I don't have a lathe, yet.

CRO-WD40, can you explain what you mean:

"You can shim the motor equaly so you can fit the straight edge inside to measure whats not parallel.

Then remove those shims and add them where they are needed."
the picture you posted.... in that configuration you can't place a straight edge to measure parallelism because there is no room between the pulleys.

If you shim the motor by lets say 20mm equally on all sides to lift it so you have enough room to slip in straight edge in between the pulleys.
You press the straight edge on the side of one pulley and measure the gap on the other pulley with feeler gauge.

Then you remove those 20mm and add required shims that you measured.