I just bought on e bay a bachmann UP 2-6-2 It runs But the wheels come loose The same goes for my old bachmann 4-6-4 . is there someway to fix Thanks Dave
Buy a new one or order replacement drivers from Bachmann parts. They are listed as available as long as it is not one of the really old versions.
BTW- Bachmann never made a 4-6-4. You are probably thinking of a 4-8-4 and if it has loose wheels, it probably also has white nylon gears in it. If this is the case, you are out of luck. The nylon gears shrunk, causing them to crack around the axles and it is not easy or reasonably worthwhile to repair. Usually the crack migrates out to the gear eventually and causes a skip of tight spot in the drive train.