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MDC RTR 2-truck Shay (Don't throw fruit)

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  • Member since
    January 2017
  • From: Southern Florida Gulf Coast
  • 18,255 posts
Posted by SeeYou190 on Thursday, October 21, 2021 9:03 PM

Chip,

I saw these on eBay.

-Kevin

Living the dream.

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
Posted by SpaceMouse on Tuesday, October 19, 2021 7:08 PM

Thanks Ed, Simon, and Rr,

Simon, nice job putting the peaker in the wood pile.

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

  • Member since
    November 2013
  • 2,775 posts
Posted by snjroy on Monday, October 18, 2021 10:45 AM

How hard are they to fix? I built one and one could say that it's a project that involves both assembling and fixing Smile. First, I would suggest you get a copy of the instructions on the HOSeeker site. You will need to disassemble the drive train - the instructions will show how it works. If you can get the book written by Jeff Johnston, it would be very useful. Unfortunately, the price for this book on the used market has skyrocketted. There are a few important lessons from this book, including: 1) Each gear must be tested separately by hand before installation. Sanding carefully the rough spots is a must, especially the bull-gear; 2) the factory-supplied power pickups are very difficult to install - make your own using phosphore bronze sheets; 3) the powertrain under the loco powers the wheels, and the wheels power the side gears and piston valves. It is a closed-loop that is very difficult to adjust. The solution is to remove the teeth from one of the gears (front or back) using a file. Doing this will avoid you from trying to align all the gears in the loop. NWSL used to sell replacements for the gears and universals. I used these but I cannot really say to what extent they improve the operation of the loco. I assume they do. 

How do they run if properly tuned? I've read that they can be adjusted to run smoothly. Mine still has the coffee-grind sound, but runs OK. It runs better with age - I'm guessing it has a long break-in time. The PFM Shays (I have 2) will run a lot quieter. But assembling the MDC is a nice challenge and a super learning experience. I do run it on my layout. I'm told that the real ones were noisy too...

Is there space for DCC sound? I did on mine. I installed a small NWSL motor, no flywheel, leaving space for a decoder. I installed the speaker on top and conceiled it with wood. I find it is a decent compromise as sound adds a lot to the fun  - and covers a bit of the gear noise. 

 

 20211017_104745 on Flickr

Simon

 
  • Member since
    July 2006
  • From: west coast
  • 7,667 posts
Posted by rrebell on Sunday, October 17, 2021 8:07 AM

I got one and it runs like crap but I also  built a kit that runs super so I figued I could  get the other to run the same.

  • Member since
    January 2009
  • From: Bakersfield, CA 93308
  • 6,526 posts
Posted by RR_Mel on Saturday, October 16, 2021 8:53 PM

I don’t have any experience with the RTR version MDC Shay but I have put four kits together and while they are a difficult kit to assemble they do run great.

I installed Digitrax DCC decoders in two of them and both run fantastic.

https://melvineperry.blogspot.com/2011/10/october-11-2011-my-mdc-shays.html

No room for a speaker in the two truck Shay.

Mel


 
My Model Railroad   
http://melvineperry.blogspot.com/
 
Bakersfield, California
 
I'm beginning to realize that aging is not for wimps.

  • Member since
    December 2004
  • From: Rimrock, Arizona
  • 11,251 posts
MDC RTR 2-truck Shay (Don't throw fruit)
Posted by SpaceMouse on Saturday, October 16, 2021 7:51 PM

So I found a couple of these ready-to-run Shays on eBay, both with stripped nylon gears.

First of all, how hard are they to fix? I'm particularly interested in those who've done it.

Second, how do they run if properly tuned.

Third is there space for DCC sound? 

Chip

Building the Rock Ridge Railroad with the slowest construction crew west of the Pecos.

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