Lennart's Model Railroad Blog

Lennart's Model Railroad Blog

About this blog

This blog is about my current model railroad layout project; The N scale "Summit" layout, which is a freelanced interpretation of the Southern Pacific Tehachapi tunnels and their surroundings. Or at least, that is what it is meant to be. What it will turn out to be is another matter. The banner photo above shows what I want to recreate in N scale.

Wheels not in gauge

Rolling stockPosted by lennart Wed, January 21, 2009 20:45:27

I have not yet installed my so far only turnout, but I have weathered its rails and tie plates. I have also added wiring so that it can be hooked up to the track bus.

The latter also made it possible to test run some engines through it. Or back and forth on it, rather, since no extra track was attached. My two SP U25B:s from Atlas had no problems, except for a bit of wire soldering that protruded a little too high. Once filed down that was no problem either, although the wheel flanges are not very low profile but more towards the pizza-cutter variety.

My Life-Like GP38-2:s scored less good. For starters they climbed the wing rails when passing the frog. The NMRA gauge soon showed that the wheels were not in gauge. They sat to close to each other, and that was true for all 4 axles on both engines! I took the trucks apart and managed to adjust the gauge. After that they managed the wing rails. But on the other hand they caught on a point when taking the diverging route. The wheels were now a little too far apart, so I made one more tiny adjustment, and the problems seemed to disappear.

Lesson learned: The wheel flange height does not seem to be a major problem on handlaid code 40 track and turnouts. The wheel gauge on the other hand is very critical. But that is at least possible to adjust. It would have been tougher to modify the flanges.

Just for the sake of it I brought out another engine, from my old CNW layout. An Atlas GP30. It negotiated the turnout without any problems. Good job Atlas. Shame on Life-Like ;-)

I have also come around to ordering decoders for my SP engines. I went for TCS M4 decoders. I have only used Digitrax decoders so far and thought it was time for a change. Also, I wanted more than 2 function outputs, so the M4:s seemed to be a reasonable option. I ordered them from a British shop, DCC Supplies. I ordered them last Thursday night and today they arrived here in Sweden. Incredibly fast, considering two of the days spent was Saturday and Sunday. When you order something from the US you can have to wait for weeks for the stuff, but then customs is involved and they seem to take their good time (Can we persuade Obama to have the US join the European Union?). Anyway, now I can't decide what to do next, lay track and install the turnout or install decoders...

  • Comments(0)//blog.lsvedberg.se/#post48