[Geoff Byron]

Out of a number of old X04 motor locos, I have two which start and run forward OK, but usually won't start backwards without a poke, or a brief burst of forward first.
I have made sure that all contacts are good, I have changed everything I can think of, made sure the comutator is clean but it makes no difference. The problem is definitely the motor, because swapping it with a known good one swaps the fault over. ANY IDEAS? ------- Geoff.

 

[Geoff Byron]

Thanks Doug, I haven't come across a five pole motor yet, but now I know there is one, I will sure be giving it a try. I know the old X04s are a bit rough and ready, but they usually work quite well as long as they are in reasonable condition. (still noisy though) I've found that a Neodymium magnet from Southpole Magnets works wonders on them, but it didn't help with this problem. Thanks again. Geoff.