A few days ago I tried to run my AF 322 Hudson in the garden and it did not run; so I had a run with a C&NW pacific and crane car. I found out that the wiring in the tender of the Hudson was failing so I replaced the wires. Now I did get power to the engine but the E-unit would not work; it was mounted wrongly (by a previous owner?) and a spring from a carbon brush was not springy. It all was repaired and now it runs again, but without smoke-unit which I think is beyond repair.
Regards
Fred