Removing the stock pulley from the 3" CIM

[Gabe]

BE VERY CAREFUL WITH HEAT!!! Just tried this method and both motors are now permanently damaged (The two motors arrived yesterday). The heat apparently loosened the adhesive that locks the armature to the shaft, and the shafts moved inward about 3/16". A Mapp gas torch was used to heat the pinion, and then a pin punch was used to hammer the shaft from the pinion. It didn't work. I then became frustrated and hammered the pinion on an anvil, which did work. The pinion to brittle enough to crack it with a hammer. I highly reccomend breaking the pinion to remove it rather than the application of heat, which may prove disastrous.

[Kirk]

Originally Posted by Gabe

BE VERY CAREFUL WITH HEAT!!! Just tried this method and both motors are now permanently damaged (The two motors arrived yesterday). The heat apparently loosened the adhesive that locks the armature to the shaft, and the shafts moved inward about 3/16". A Mapp gas torch was used to heat the pinion, and then a pin punch was used to hammer the shaft from the pinion. It didn't work. I then became frustrated and hammered the pinion on an anvil, which did work. The pinion to brittle enough to crack it with a hammer. I highly reccomend breaking the pinion to remove it rather than the application of heat, which may prove disastrous.

That is exactly why we use the nut splitter. Takes 30 sec and there is little to no risk of damage to the motor/shaft. Its well worth the $5-10 for the tool.

[Gabe]

Originally Posted by Kirk

That is exactly why we use the nut splitter. Takes 30 sec and there is little to no risk of damage to the motor/shaft. Its well worth the $5-10 for the tool.

I like using the nut splitter, and have used it before. Just that this time I did not have it around and I really needed it then and there, so I tried using heat.