1. I don't have a freezer big enough and I don't think ice would be cold enough, though maybe some dry ice
2. Tried tightening it down to begin with, but I'll try it again
3. Never heard of kroil, but will look it up, did try the chisel to begin with
4. Reversed the directions. Put the chain under the cog and tried to roll the wheel forward.
Like 75 bucks for the wheels if I cant get the cog loose. with the cog they would be 250 with tax at retail.