Bob, I don't have one of the specific locos that you are try to work with, but I have numberous times resprung steam locos where all drives failed to touch the rails simultaneously. Generally I prefer to put slighly stiffer springs on the end axles to stablize the loco and softer ones on the center axles so that they can compress slightly putting all wheels on the rail. This might also work on the loco you are working on.
Dale DeWitt --- In [email protected], Bob Werre <bob@...> wrote: > > Apparently nobody has any of those engines, or was willing to look into > one regarding my derailment problems. Two evenings ago while > rearranging motive power, I did get into the trucks. I was correct in > that the middle axle area is different than axle one and three. The > sideframes are cast with recesses to hold the six coil springs. The > outside holes are deeper than the middle ones. So if one were to make > the assumption that American Models used the same springs on all the > axles the middle axle would be sprung more stiffly than the outside > axles. This would cause the rocking motion and resulting derailments > that I'm experiencing in some places. > > To correct this situation, I imagine using softer spring or springs with > fewer coils might solve the problem. Another solution might be to file > down the bearing blocks the same relative difference of the spring > holes. I'm not certain why all this needs to be considered--perhaps I'm > missing something here! > > Bob Werre > PhotoTraxx > ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
