In another thread I've been investigating the standard motors for the 16S (the stock variable speed motor, and the constant-speed motor with the external transistor).  For the sake of future searches I thought I'd gather that all together in a new topic, where we can just discuss the guts of the motors, and taking them apart and fixing them.  I've made a web page for each motor, and am updating them as I learn more.  But there's an initial teardown and rebuild of each so far. Constant speed