A few years ago, I read a how-to guide on cleaning BL motors. I took my CCCM36 7700kV motor and removed the three endbell screws, and tried to remove it. Something's not letting it come off, so I stopped right there. It's still sitting in storage in a box, but before I tried to take it apart it ran fine. I just wanted to follow the guide to learn how, and I'll look around for more how-to guides to finish the job.
Speaking of, if anyone has some good resources, please share it here!