stator

Just a quick question, can anyone tell me if I need to pull the engine to remove the stator cover? I know the service manual tells you to pull the engine out to "service" the stator but I just want the cover off.

I am at trying to remove the rotor to get to the stator. I have the OEM tool to pull the rotor. My question is how much torque is needed to get this apart? It seems like I am using a lot of force without any movement, I don't want to damage anything.