J1, J2 motor key not fitting in raceway

Just posting my experience with j1/j2 since I only found 1 other instance of this in the search.

J1 key on the motor was not fitting in the keyway even though it appeared to be all the way in. Not recommending this, but I wrapped it in wire harness tape to protect the shaft, then squeezed the key in with needle nose pliers evenly. it went in fine after that

Fast forward to J2, I ran into the same issue.. this motor is much bigger, and it looked like it was all the way in.. problem is you don't really know, but there's a 90% chance if it's not going in the keyway that the key is just not pressed in far enough.

I tried using a clamp, did not work. tried freezing it, tried tapping it in with the side of my pliers, ultimately I had to go buy digital calipers and confirmed like another poster that it was sticking out 1mm too far. I then bought a vise, wrapped it in electrical tape as the guide mentioned, and pressed it in pretty hard. after this it went in fine.

Unfortunately I was so focused on trying to get the motor in that I installed it slightly off to where the screw holes don't align, and now need to find a way to tap the motor back out and reinstall it. So word of warning be careful on that step!

Edit: Got the motor back out by having my son pull/wiggle the motor as I tapped in a screwdriver that had a socket slightly smaller than the diameter of the motor shaft, I wrapped it in electrical tape then tapped it with a rubber mallet. Took a lot of force, but it seems fine afterwards.