I haven’t been doing much on Port Rowan this year for various reasons. Truth be told, I haven’t done too much in the hobby this year, period. But I have been trying to keep my hand in – primarily with some projects for others.
This locomotive is one of them:
(CNR 7456 in HO scale)
A while back, my friend Stephen Gardiner and his wife Heather bought a townhouse – and in the summer, a bunch of us descended on his place to build benchwork for Stephen’s HO scale layout based on Toronto’s Liberty Village district. (You can read more about the benchwork party on my Achievable Layouts blog, and more about Stephen’s Liberty Village layout on his blog.)
Even before Stephen moved into his new place, I knew that I wanted to have a locomotive to take out to operating sessions. And when I happened to stumble across a “like-new” example of the brass CNR O-18-a imported many years ago by Van Hobbies, the die was cast. I picked up this model earlier this year, and started working on it back in May.
If I’m counting correctly, this is the fourth example of the VH O-18-a that I’ve owned, and I’ve regretted selling on every previous model, so I was excited to find this one. And it was indeed in great condition. Every one of these that I’ve owned has enjoyed a super smooth mechanism ideal for slow speed running, and this model continued in that tradition. However, the models are quite venerable now – they were imported a couple of decades before anybody had even heard of DCC – so they do need their motor upgraded. I also needed to drill the headlight and back up light and provide holes for wire runs.
(As an aside, after I acquired my O-18-a, another friend – Ryan Mendell – also picked up one, which he’ll use on his new Grand Trunk layout. And that led Stephen to find his own O-18-a – so we’ve started a club of sorts and have been sharing ideas for updating them.)
To make a long story short, I’ve done all that. I’ve added a LokSound Select, a TCS Keep-Alive (with a cut-out switch for programming, accessible from between the centre sills of the tender frame), LED lights, and a pair of ESU sugar cube speakers. It’s pretty crowded in the tender!
(A view of the gubbins)
Up front, I’ve replaced the old open frame motor with a NSWL can motor, including a new bracket I fabricated from brass. This was a hurdle for me – but it turned out to be much easier than I thought it would be. The lesson learned is “Just go ahead and try, because it will probably work – and if it doesn’t, it’s just a bit of brass sheet”.
For this model, I decided to branch out from the typical model railway suppliers and experimented with Tamiya paints from my local plastic modelling hobby shop. I’m really impressed and will be using these a lot more on future projects.
But of course it wouldn’t be one of my projects without some sort of disaster. Yesterday, I reassembled the model and went to test it – and the decoder blew. I traced the fault to the bare contact on one of the sugar cube speakers, which came into contact with the bare brass of the tender interior. I thought I had secured the speaker enclosure to the underside of the top of the tender shell, but it worked its way loose. Lessons learned: Do a better job of securing the speaker enclosure and cover up those contacts.
Meantime, I’m in for another decoder – and a lot more fussy wiring. I’m kind of discouraged by that, so I’m not going to tackle it just yet. But I have plenty of time to get this model ready to run on Stephen’s new layout…
UPDATE: December 13, 2018
(That’s more like it!)
On the weekend I was able to nip through an area hobby shop and pick up a replacement decoder – and yesterday, I installed it. This time, I made sure all speaker terminals were insulated (I applied Bondic to each one) and I also wrapped some of the interior of the brass tender shell with Kaptan tape.
The ESU approach to decoders once again proved its value: since any LokSound decoder may be loaded with the user’s choice of ESU sound file, and managed through LokProgrammer, I was able to buy the appropriate decoder – a LokSound Select Micro – with a diesel sound package preloaded on it. I then simply used the LokProgrammer to overwrite the package with my file for CNR 7456, which not only replaced all the sounds but also rewrote all the CVs to those I’d established before I blew the previous decoder.
The locomotive is now back together and running as it should. I still have a few details to address, such as a crew, window glazing and – perhaps – cab curtains. And I may want to adjust the brightness of those LED headlights. But the hard work is done!
As an aside, I picked the locomotive number – 7456 – back in the summer while visiting my friend Andy Malette. The choice was practical: Andy had a limited selection of etched brass CNR number plates and 7456 was one of the ones still available. Andy also supplied the lovely brass numerals for the cab sides. (Thanks for those, Andy!)
After deciding on 7456, I was pleased to discover a photo of the prototype when I visited the Andrew Merrilees Collection at Library and Archives Canada in September:
You’ll note there are a number of small differences between the prototype and my model of it. Notably, the coal bunker should be taller, the handrails are different on the tender and around the smokebox, and the headlight is lower on the smokebox front. The number board is also at the back of the headlight bracket, instead of at the front as it is on the model. However, I had already painted the locomotive when I found this photo, and a decided I could live with the discrepancies. Maybe on my next one…