God, I can't believe the amount of help you all have given me, thanks!  OK, It's not the pin. After looking very closely I can see that the first and second drive trucks on the Shay are NOT turning enough going into the turn. They jump the track and continue on straight. If I give the lead truck just the slightest help starting the turn, it seems to then finish the turn OK.  I flipped the loco over and looked for obvious signs of hanging up and couldn't find any. I put a little (very little) white grease on the drive axle spline and the screw holding the truck on. Didn't help! So, is this a problem with the switch or the truck?  I said in the first post my switcher has a little jump to it also making this turn, but it does make it. I'm open to suggestions.

Bruce

I thank you for your advice but I have one question. How do I get the track gauge to run over the switch area? The one I've got (KayDee) only fits in between regular track.  Your idea does sound riteous though. I'll see if I can eyeball it!

Bruce

Hello all,
Since Bachman doesn't make track (I hope) I think I can drop a name here. I'm using Atlas 83 track and switches. I've got a problem with SOME switches. I only have two locos at the moment. I'm just getting into this hobby. A 3 truck Shay and a 40 ton GE switcher.  Both these locos have a problem on the curve side of the switch. When comming up the bottom toward the split and going to the curve the front trucks want to slide off the outer track slightly until they get to a point in the curve. Then the inner wheel of the truck will bump or jump. Sometimes going where it's supposed to.  Other times not. This is rather hard to explain without a picture! Anyway, I was wondering if anyone has had this problem and been able to solve it?  Thanks for any help you might be able to give.

Bruce