I have (ahem) a friend (ahem) who was a little careless with a can of WD40 on the motor of a Hornby HST. Under DC, it would run fitfully, but after removing the body it became obvious that arcing was going on around the armature. I have tried to clean the comutator and carbon brushes with spirit, but is seems to make no difference. I was so confident that the cleaning would fix the problem that I installed a Lenz Gold decoder....but.... it's just as bad as ever
two questions :
- Have I - ahem sorry - has my friend wrecked the motor beyond repair or is there something to be done?
- How do you get the thing apart? - there are two clips which partly release the plate at the top of the motor, but I can't see how to release the bottom part so I can remover the armature and thoroughly clean it.
Adrian