My brain is going on something about this question...
anyways, if you have a 2nd locomotive (DC ony, not DCC but most DCC engines can run on DC)
when you turn the throttle on do they run the same direction, the you have no problems.
Just reverse the wires on your powerpak.
yehright, just flip the engine 180 degrees thatll fix it...
If the engines do run in opposite directions, you will have to rewire the engine, or if the motor was removed and perhaps placed in 180 degrees from what it was, some motors are designed like that, some not, so its a good check.
I have no idea if shells have an effect on direction, but if wiring is integrated on the shell to transfer power, maybe that could happen if the shell replaced backwards.
Otherwise, big nopers on the shell idea.
