Truing grinder wheel
I've had this Harbor Frieght 8" bench grinder for a while, and just recently decided to repalce my trusty 6" Delta with it bolted to the workbench (the Delta just sat there free).
Well, the HF grinder shakes like a lawnmower. I found that by greatly tightening the mounting bolts (to the bench) I could reduce the shaking, but the real problem seems to be that the wheels are out of round (a commong HF grinder wheel problem, I understand). I tried dressing them with a star dresser, to no avail. Then I dismounted the wheels, found the heavy (long) spots, put those up high, pressed down a bit, and tightened up the wheels again. That helps a bit.
Then I took some 1/4" steel stock (Simpson Strong-tie flat washers for foundation work) and tried to use them to help wear down the high spots on the wheels. That may have helped a bit, but I think it might take quite a while to do that. Part of the difficulty is that the tool rests on the grinder are a bit too flimsy and springy to hold a trueing steel to them steadily enough to hit only the high spots.
So... my question is, is there a good in-shop/on-grinder method to true a pedestal grinder wheel?