I'm looking for advice about my Stainz motor. Towards the end of the summer, the loco (now battery powered) proved difficult to start. Often needed a gentle push to get it going. I've taken it carefully apart, checked everything I can think of, and finally lifted out the motor. (picture attached, in case there are different motors in circulation.) Testing this on its own, with current applied to the two contacts emerging from the can, the same problem is occurring - sometimes it starts, sometimes it doesn't. A gentle twist on the worm gets it going. This applies in both directions. Clearly the problem is something inside the motor can, but I'm very reluctant to launch into dismantling it without some expert advice. Or is it a case of leave well alone until I can find a whole new motor?
Thanks, folks.

Thanks, folks.