Good suggestion, Jace! I'll check, but the locomotive has done this since it was new, thus it gets used in consist with other locomotives most of the time.
My ALCO MODELS RS-2 did split an axle gear as you describe, and had the same symptoms. Until I could get some spare gearboxes for parts, I simply removed a tooth on each side of the split to eliminate the lurching (another way would have been to remove the idler gears to the offending axle and let it roll free, just like cutting out a traction motor on the real McCoy). However, the gears on the GP-9 seem to be in good shape, and I replaced the original motor years ago in an attempt to cure it. I have more or less narrowed the problem down to the wobbly wheels binding on the truck sides on one truck. At any rate, I have purchased some gearboxes from one of the list members, and if nothing else, should be able to cobble up something. Locomotive Workshop SW-1 #22 is still sidelined for heavy repairs, the result of trying to add a flywheel and causing more damage than I was trying to fix! Always something . . . "S"tring Bob __________________________________________ --- In [email protected], JGG KahnSr <jacek...@...> wrote: > > > While I cannot discount the wheels themselves, the symptom often comes from > split gears. Is it possible that as the plastic has aged > and shrunk it may also have split? > > Jace Kahn > > General Manager > Ceres & Canisteo RR Co./Champlain County Traction Co. > > > > > > > > > I have had an American Models GP-9 for about twenty years. It has the older > > AM power trucks and the wheelsets have the bronze bearings. > > > > Ever since I have had this locomotive, it has had a bind that manifests > > itself each time the wheels make one revolution and causes the locomotive > > to lurch as it moves down the track. > > > > Last night, I decided to take it apart and see if I could find the problem, > > and found a couple of wheelsets with considerable "wobble" in them. > > > > Checking NWSL's web sites, I see they offer replacement wheelsets for these > > locomotives, Item #2535-6, however, I cannot tell from the product photo if > > the replacement wheelsets have the bronze bearings. > > > > Has anybody had any experience with these replacement wheelsets? If so, > > what can you tell me? If I send my wheelsets to NWSL, would they install > > new wheels on them for me? > > > > Alternately, does anybody have any old AM power trucks I could use for > > parts that they would be willing to sell? > > > > Bob Nicholson ________________________________________ > > > > [Non-text portions of this message have been removed] > ------------------------------------ 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/
