@Dave NYC Hudson PRR K4 posted:Wow, that looks like something I would wind up blowing up if I tried, lol. I have several of the K4 runs and haven't had them out of the box since no track big enough to run them on(unless I carpet run). I don't know if the TMCC 1361 K4 has that issue(wouldn't expect it to be, but what do I know). I guess we'll see more of these getting fixed when you are less busy with work and more engaged in "retirement", haha.
I think it only affects K4s from the newer K-Line tooling. P.S. I think most K4s with the short tender can negotiate O36 just fine.