It's a little hard to tell from your picture but the entire motor assembly should be perfectly plumb with the blade, any deviation in angle is going to put more wear on either side of your belt and ruin it quickly.I have working on tuning up my old saw. Is the motor suppose to be mounted on a angle? This is the best I can get it so far.-no laughing.
I can run it now strait and at a 45 angle without blowing a fuse or throwing the belt. When I tilt or raise the blade it puts more tension on the belt. I had to mount the motor tilted half way to compensate.
Any of you guys have a old saw with a design like this?
Untitled by [email protected], on Flickr
The motor is also supposed to travel with the blade when you miter and adjust on a spring when you raise/lower the blade.
I recommend giving us the model number so we can find you a manual. Take the motor off and lube up and clean the arbor mechanism really well and make sure nuts are tightened properly.