I have an S Scale Omnicon K4 made by Samhongsa in 1987. It has the free rolling drive. The photo shows my fix for locking out the free rolling drive. http://www.lanestrains.com/Samhongsa_Gearbox.jpg On my K4 <http://www.lanestrains.com/Samhongsa_Gearbox.jpg%20On%20my%20K4> The brass worm gear is not shown. Since my layout is flat I have enabled the free rolling drive again.
The next gear on my K4 drive is Delrin and the 2 smaller gears are brass. The Samhongsa gearboxes are usually alternating materials between brass and Delrin, and are not always the same. This loco was completed in October. http://www.lanestrains.com/S_Scale_PRR_K4_5495.htm It is my most involved project by far. With moderate running time I have blown out the center teeth on the brass worm gear TWICE since it was completed. It looks like a corn cob with the only center eaten! Yet the next Delrin gear is fine. I am truly at a loss here. I thought the Delrin gear would the first to go. Any ideas? This gearbox was WELL lubed. The loco has some extra weight added but it slips instead of stalling so I mostly think it is not overweight. I hate to think I have to pull 4 cars with it forever for fear of continually taking out the worm gear. I do NOT want to take this loco apart! The paint always suffers a bit every time. I don't know if NWSL can make me a better brass worm gear. I would consider it. For now I have secured some replacement parts from the original run but that supply is not endless. I wonder if going with all brass gears would help. NWSL has made the 2 smaller gears for me in the past as I thought they would be the wear parts. ***Please reply to me directly***. Any help or insight is greatly appreciated. Thank You, Bill Lane Modeling the Mighty Pennsy & PRSL in 1957 in S Scale since 1987 See my finished models at: <http://www.lanestrains.com/> http://www.lanestrains.com Look at what has been made in PRR in S Scale! See my layout progress at: <http://www.lanestrains.com/My_Layout.htm> http://www.lanestrains.com/My_Layout.htm Custom Train Parts Design <http://www.lanestrains.com/SolidWorks_Modeling.htm> http://www.lanestrains.com/SolidWorks_Modeling.htm PRR Builders Photos Bought, Sold & Traded (Trading is MUCH preferred) <http://www.lanestrains.com/PRRphotos.xls> http://www.lanestrains.com/PRRphotos.xls ***Join the PRR T&HS*** The other members are not ALL like me! <http://www.prrths.com/> http://www.prrths.com <http://www.lanestrains.com/PRRTHS_Application.pdf> http://www.lanestrains.com/PRRTHS_Application.pdf Join the Pennsylvania Reading Seashore Lines Historical Society It's FREE to join! <http://www.prslhs.com/> http://www.prslhs.com Preserving The Memory Of The PRSL
