For those interested, I have completed the decoder installation in this loco.
For a sound sample, I have put up a you tube video here. The first part is without a speaker enclosure, and the latter half with one (as it's shown above). I was trying to not encroach into the cab, but as you can see space is limited.
The enclosure makes a huge difference.
I've also gone back and added the capacitor, which seems necessary for smooth running with these decoders wired direct.
I'm trying to model 1956, not live in it.
Thanks joe, that's exactly the kind of info I was looking for. I had even called Atlas, but was unable to get a solid answer on the size of the original screw (from the gauge at my local hardware store, it's a "1".
Turns out the TCS website has a link for a decoder install on this model, and does the same thing.
I'll try and dig up some nylon 2-56's,
A 2-56 nylon screw will work in this application. I have two S2s that I added decoders to and used this trick on both. You simply have to carefully thread the screw into the threaded hole and it will cut new threads on the screw. You can then remove the screw and use it to install the motor.
Joe
If regular US screws will not fit, you probably need a metric screw. If there is a LHS near you, look for a nylon metric screw sometimes used in model airplanes. Much of the mrr stuff is produced outside the USA and are metric based for hardware.
You can compare screw sizes by searching the 'Net. It may take some time though and maybe others know exactly what size is needed.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
Just got my new Micro-Tsunami with the Alco 539 Turbo sounds from Litchfield Station!
Hurrah! Now as I start to put it into the Atlas S-2 that I'm converting, I find that I can't find a replacement nylon screw in my local area for the metal one that mounts the motor to the frame.
Any suggestions on a source?