Dave, If your cars have truck screws to hold them on try tightening (carefully mind you) the truck on one end only until the truck doesn't swivel (or rock from side to side) and then back off until it does some but not much. The other truck leave as is, this will allow the car to wobble some but that's needed for uneven trackage. 2slim
Wobbly Rolling Stock Do you have plastic wheels ? Most of the time the plastic wheels are cast and not turned and this can result in slightly egg shaped wheels. The axle hole might not be centred in the wheel. This would cause the same wobble problem. Usually the cars will have the "shakes" If by wobble you are refering to swaying from side to side then as mentioned in 2Slim's post tighten the truck screws being sure to allow the truck to swivel easily. New wheel sets will cure the "shakes". Use Kadee, Intermountain, Reboxx or others. Be sure the axle turns freely in the truck frame. The best would be to replace the entire truck with Kadee trucks correct for the car. Archbar trucks don't belong under a Container Well Car for example.
Before chucking wheelsets out, check the treads are clean (esp. plastic ones). It doesn't take much of an uneven buildup of dirt to have the same effect as out of true circles. Of course the usually given advice is to sling plastic wheels and replace them with metal anyway
In such problems I exchange the wheels with Kadees. Just like what I do with couplers. :angel: Wolfgang
Bingo. There's the answer. I have done this countless times and it ALWAYS stops the wobble. I always pick one truck (A end) and tighten it down. The "B" end I leave a tad of wobble in. This works and should be a rigid part of your "car tuning" program along w/ the proper weight, coupler height, and wheel gauge.
Tighten one truck so the truck still swivels freely and still has a little rocking action. Leave the other truck loose to absorb the motion.
