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Crankpin Screws for an MDC / Roundhouse Old Timer 2-6-0

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  • Member since
    November 2013
  • 2,775 posts
Posted by snjroy on Saturday, October 31, 2020 7:33 AM

I'm glad it worked. Keep us in the loop about your alternate solutions.

Simon

  • Member since
    October 2020
  • 3 posts
Posted by Kadota Transportation System on Friday, October 30, 2020 12:21 PM
Thank you for your advice! I did try some mild filing and it did get them in place a little easier. I'm still interested in the screws as a possible alternative, mostly in case I need to disassemble the locomotive again at some point. I'm concerned I might destroy the plastic pins if they need to be removed for some (unknown) reason. Thanks again! I really appreciate it!
  • Member since
    November 2013
  • 2,775 posts
Posted by snjroy on Thursday, October 29, 2020 1:32 PM

Ok, before modifying anything on the drivers, try filing (gradually) the pins to make them fit. I had to do that on a few of mine. These pins, once in place, are just as dependable as screws. In fact, I think I've had more issues with screws falling out than the MDC pins. And MDC supplied extras in-case of loss.

Simon

  • Member since
    October 2020
  • 3 posts
Crankpin Screws for an MDC / Roundhouse Old Timer 2-6-0
Posted by Kadota Transportation System on Thursday, October 29, 2020 10:36 AM

I recently acquired a gem on eBay I've wanted for a while: a Roundhouse Old-Timer 2-6-0 Mogul locomotive kit, and am in the process of building it now.

While I'm enjoying the build immensely, the little plastic MDC crankpins that hold on the rods are giving me one heck of a time. They've proven very difficult to push into place, and I'm searching for a suitable alternative.

I (kind of) found one from the source that actually inspired my initial purchase. John Ott's Miskatonic Railroad is a truly fantastic model railroad, and features many detailed accounts of turn-of-the-century locomotive kitbashes. One of which is a bash of a Roundhouse 2-6-0 that was already half-built.

Mr. Ott mentioned that when he received the locomotive, the aforementioned, infuriating plastic pins had been replaced with flathead, round-headed screws. The modification can be seen here:

John Ott's MDC / Roundhouse 2-6-0 with flathead screws on the rods

This is a modification I wish to make to my own 2-6-0. But alas, I am semi-new to the in-depth portion of this hobby, and am not entirely sure where to look.

Does anybody here have an idea of what size screws would be suitable for this purpose, and where they could be purchased online? Any help or advice is greatly appreciated.

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