Sunday, 8 April 2018

Llyn Fach

For a long time I have had a 009 gauge model railway. It is small enough to fit inside a cabinet bookcase, and I used to spend time working on it with my Dad. The past few years the railway has sat inside the bookcase, looking half finished and a little bit sorry for itself.

The railway has a little engine, its a generic saddle tank, and is named Sam, (after Peter Sam in the Rev. Awdry books), Sam also has a few coaches and a couple of trucks, that are shunted here and there around the few sidings.

Loading Gauge Issues
 A couple of years ago, I'd got the layout out and identified where some track needed replacing. Namely around the left side corner, where there was a slight track gauging issue... Some of the little plastic clips which hold in the rail had snapped and the engine would often derail there. I had bought a new length of track to fit there, but that too had been sitting in a box in the corner of the room waiting to be fitted. So I finally decided that I was actually going to do it. And I did.

I got out the layout and set up the controller to see if I could reassess the problem. What I found, instead of having track slightly wider than It should have been, was that actually we had a slight loading gauge issue around the road bridge. In my experience vehicles hitting bridges is never good. So I was faced with two options: move the bridge, OR move the track. Seeing as the bridge scenery was partially done, and I was going to replace the track anyway, I started going about replacing track.

The track around the bridge was also interesting. There is a station just before the bridge, loosely modeled on Wharf Station at the Talyllyn Railway, and so there is a platform and just before a loop. At some point there has been some bodging of track work when the loop was put in, and we were left with a rather untidy few sections of track leading out of the loop and under the bridge. The first of which seemed to be causing problems before.
Untidy Track

My plan,with the length of track I had, was to replace the entire curve up to the loop point, including the little messy piece. This is what I set about doing, pulling the track pins out, and saving the serviceable ones, and just chucking the old bent ones that weren't of any use. There was only one problem I came across, and that was that most of the corner is covered by the road across the top of the bridge...

Ultimately the only thing I could do was to take a knife to the cardboard bridge to get it out of the way. I had devised a way to cut up the bridge so that there was minimal damage.

I cut the bridge along the rear road boundary and completely lifted the back piece out, which gave just enough access to get in and remove the track, as well as lay the new piece.

Taking the two old pieces of track out was an interesting experience, as the track practically fell apart as soon as the track pins were out and it was slid out of the fishplates. I was rather glad I was replacing it.

The bridge coming off
Once the track was in and pinned down, and the bridge loading gauge issue was sorted, I slowly ran the engine around the curve to see how it ran. Unfortunately it did brush up against the wall at part of the curve, but that was solved by cutting out a section of the cardboard wall. The hole cut out is below the line of the top of the bridge, and will also allow some extra access to the curve once the bridge goes back on.

I was pleased with the curve once it had been relayed. The loading gauge problems were solved, and the curve looks a lot better, hopefully the engine will also run nicely too!

Done!

1 comment:

  1. Brilliant engineering solution - the basic problem, I think, was that the track was already several decades old when it was laid on the Llyn Fach Railway; and well past its best.

    I seem to think the station was originally based on Rhydyronen, but grew rather bigger than Rhydy has ever been! Great to see it's being given a new lease of life.

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