Can you give me some guidelines how to do it?
My idea is:
1- Remove all shims and let the rotor to center itself into the magnetic field.
2- Mark the rotor outside the can and add shims both sides before the bearing to keep the rotor in its place.
Also, as it is now, there are some slack (around 0.7mm) and when I go full throttle the rotor moves a little further to the outside (pinion side). If I center the rotor with shims to avoid this movement, will the motor work better or not?