I just discovered that one of the motor shaft couplers has come off.  I believe I now need to replace the motor.  However the parts store says the GP 40 motors are out of stock and / or discontinued.  I wonder if it possible to solder the coupler back on to the motor shaft?  Otherwise I am open to suggestions.  Hate to lose the engine.  it cost $35 to purchase a new under chassis. Just noticed that the chassis are out of stock.  Almost the cost of a new GP 40 diesel. I hope I am making myself clear as to which part is broken. It holds the plastic propeller shaft that connects to the trucks.



 

I have a 2 Bachmann diesels.  The older of the 2 (1+yrs) stops running when it hits a switch or crossing track. The newer of the two has no issues whatever.  It runs smoothly around the entire layout, crossings and all.  I am using code 80 track and crossings.  Tracks and wheels have been cleaned, but for some reason I feel I am losing electrical contact at the switches with this one diesel.  Any thoughts?