When the glass (F2TZ9842006A) can be moved by hand, it usually means the motor's drive bushings have degraded to powder or mush. In this particular case, though, I found the motor loose in the t/g. I assume someone changed it, but couldn't get the screws started, and gave up. In another rare case, the plastic outer gear shattered, allowing the bushings to roll around the drive gear's triangular hub.

Owner caption August 2011 · Photo 3823 of 5000