Not sure if this is the correct place for this topic.
I have recently purchased a Class 158 dmu, when doing some testing the heavier coach seems to push the light 2nd coach of the rails mainly at points. Going forward when the heavier coach is in front its all fine, only when I reverse the train it does the derailment.
Would adding weights to the 2nd coach help, so the 2nd coach has a bit more force against the heavier 1st coach.
Or remove weight from the 1st coach if possible, to try and balance the weight distribution more. I haven't locked to see if there are any weights in the 1st coach to take out.
Any other suggestions would be helpful.