Hornby TT 120 A3 motor end cap conversion.
This has turned out quite well but not as good as the A4 I did last week.
The brushes do touch each other when the end cap is released, so I tried to ease the tension, which resulted in one brush being bent. I managed to get it reasonably straight but think it is rubbing on the commutator end disc sheet.
This is probably the reason that I had to increase the speed from setting 25 to 40 on the controller.
Still, I hope to get more hours from the motor now than I would have with the wipers.