[morzh]

I thought of waiting another day for the PB Blaster to work, but realized I am against a long shaft inside the pulley, so I would be better off holding the shaft and twisting the pulley instead of just trying to pull it off.

So..I took stubby needlnose pliers that could get to the shaft (space between the triangular plate and the motor cover is narrow). To not scratch the shaft I took two thin wood chips, taped them to the tips of the needlenose (just to hold them in place 'till I reach the shaft), 

   

then inserted them between the plate and cover, squeezed,  twisted the pulley and it came off.

Then I straightened up the bent plate using two pieces of wood and a vise, and finished flattening between two large allen wrenches as anvils inside the vise. It is as straight as it has ever been.

   
   
   

Then I took the motor apart, cleaned the bushings, put Kluber oil inside.
Reassembled the motor.
I will put it back when the grommets come.