Cannot keep the front truck on the rails.

Take the truck off and push it through your switches by hand, observing how it traverses the switch. Are the flanges too much for those particular switches? Does it seem to want to jump up and over any rail? Does it bounce through the rails? …..use a screwdriver or a stick, and push the truck through the switch from a point that doesn’t exert any downward pressure like your fingers would tend to do. Sadly, I hate those crappy pilot trucks and generally toss them in the trash when I’m doing an upgrade ….they’re about as clunky as clunky gets …..

Pat

What does this have to do with 3RS modeling, per the descriptions at the top of this forum?

So I have recently acquired two Williams brass locos, each seems to have it's own similar issue to what you describe, Atlas switches here, when taking the diversion direction my N&W 611 4-8-4 will seemingly hit something in the switch or rail and pop out, or most of the time I hear it lifting on top of the rail then it will fall back down onto the rail.

I also have a NYC 6010 Niagara 4-8-4 I just got and I noticed as it takes left hand O72 curves the front truck swings and will snag on a low hanging compressor. I found someone else mention this on the forum and they fixed it by file it down a bit.

You gotta move the thread, ….Jack is right, it’s in the wrong forum, ….I didn’t pay attention to what forum the OP posted in….

Pat

@harmonyards posted:

You gotta move the thread, ….Jack is right, it’s in the wrong forum, ….I didn’t pay attention to what forum the OP posted in….

Pat

He can NOT "move the thread". Only the Moderators can do that.