Have a couple of new carriages 7.25 ” gauge just built, on testing on track the carriages keep coming off, especially on the curves and over the points. Believe wheels are at fault, what do I need to check. There is a bit of sideways movement of boogies. Any ideas?
eriously, check wheel gauge against track gauge as it sounds like flanges too tight fit `tween rails causing them to ride up sides of curved rail and jump off top.