Arnold, I’m glad to hear about your success with the B6! It proves you can, sometimes, fix things easily with a bit of experimentation. I have an MTH Camelback that stops smoking as it coasts to a halt. I found tapping the stack with my finger gets it smoking again.
I believe some smoke units shut down when the fluid gets too low, but I don’t know which ones. The safe thing to do is be sure the smoke units from any manufacturer don’t get too dry.
Regarding an earlier question, I wouldn’t remove the shell from an engine under warranty. It could definitely void it.
May your train room continue to be filled with smoke!
John
