i'm a new member from sedona,az and 1st time shopsmith owner.
i bought a mark VII last winter ( not working; motor would only buzz, not hum)and have been reading the mark VII repair threads with great interest. with the help from these threads and comments from jpg, robinson and others i was able to get it running (bad start relay).
it runs quite well although noisier than i thought it would be (i've never been close to a shopsmith before).
but when i turn the speed up to approx 1800 rpm it tends to keep going up; sometimes to 3600,sometimes all the way up. the detent pins and springs appear to be functioning properly.
i've moved the fan sheave to 3 different positions but the speed moved the same or worse. i don't remember seeing a thrust spacer between the fan sheave and the motor (i didn't see one on JPG's teardown and rebuild thread.
how do you align the motor belt without one; what are it's dim's?
are there any other known causes for this speedup (my motor belt's width is .504". i have ordered new belts for it).
lastly, thanks for all the great posts. they have been MOST helpful.
Smithy SuperShop 720, Craftsman RAS, Ridgid TS2412 Table Saw,
Delta 12" planer