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  1. #21
    Join Date
    Apr 2000
    Location
    Sugar Land, Texas, United States
    Age
    62
    Posts
    13,703
    Blog Entries
    1
    Quote Originally Posted by Cajonpassfan View Post
    the LFM's only have three large openings per each half, not four. One could of course wing it....
    Kind regards, Otto
    Yeah, that is true. However the B-Mann drivers are still a whole lot closer than the ones I used when I cobbled together my ATSF Pacific. I modified an old Arnold Rapido USRA Pacific to make it sort of look like a Santa Fe model.
    Russell Straw, Sugar Land Route

  2. #22
    Join Date
    Feb 2004
    Location
    Falls Church,Va
    Age
    68
    Posts
    4,501
    Might be a good starting point but only with the newest version of the Bmann Northern. Earlier versions had exteme driver issues caused by the plastic deterioration and splitting where the stub end of the half axle assembly press fit into the gears. Drivers are close in size and appearance. Don't know how much cylinder difference there is. But I would be tempted to utilize the front of the mechanism including the pilot truck and then remove the rear drive axle and modify from there. Boiler diameter of the Northern may require the chassis/weight to be milled to fit the Pacific shell.

  3. #23
    Join Date
    Feb 2013
    Location
    Kansas
    Age
    39
    Posts
    16
    Quote Originally Posted by Cajonpassfan View Post
    The 3400 Pacifics and 3450 "little Hudsons" were rebuilt with 79" LFM's, also known as Universal Disks, not Boxpoks (manufactured by Locomotive Finished Metals Co. of Atchison, KS, in you neck of the woods). Your best bet, other than buying one by PRB, would be making some kind of inserts or overlays, etched, cast, or drilled and filed, but that is a lot of work.
    Interesting bit of trivia and so close to home. So sounds like it was an ATSF thing only then? Would be interesting to know more about these as I came across this photo of 3462 (Check out the middle driver... and that would be an 84" one too!):

    Click image for larger version. 

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    Yeah, I was wondering about the possibility of creating photo-etch overlays and then maybe using a Dremel bit to ground out a bit of the original plastic so there'd be a bit of depth behind the new spoke openings... thoughts?

    BTW - thanks for the welcome and thanks for the photo.

    Quote Originally Posted by John Moore View Post
    Drivers are close in size and appearance.
    So the Bachmann drivers would be good candidates for the right size on the 4-6-2? I've got an old scrap set that I could tinker with to test some ideas on.
    Jason

  4. #24
    The hudsons gone isnt it? im in edgerton, ks and am in topeka quite a bit as i work for BNSF. Do you know John Lauer?
    ATSF(BNSF) Signal Construction Foreman

    Santa Fe All The Way!!!

  5. #25
    Join Date
    Feb 2013
    Location
    Kansas
    Age
    39
    Posts
    16
    Quote Originally Posted by drasko View Post
    The hudsons gone isnt it? im in edgerton, ks and am in topeka quite a bit as i work for BNSF. Do you know John Lauer?
    Sent you a PM about John. The Hudson is still here and there's a good chance it'll never be leaving either... but I can't elaborate anymore than that at the current time.
    Jason

  6. #26
    Join Date
    Sep 2008
    Location
    ATSF LA Division, Second District
    Posts
    1,069
    Quote Originally Posted by ATSF 3463 View Post
    Interesting bit of trivia and so close to home. So sounds like it was an ATSF thing only then? Would be interesting to know more about these as I came across this photo of 3462 (Check out the middle driver... and that would be an 84" one too!):

    Click image for larger version. 

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    Jason, yea, I have a pic of the 3462 taken from the fireman's side and it too shows the 84" LFM main driver. To my knowledge, it's the only "big Hudson" that got it....there must have been a crack in the original Baldwin driver and LFM came to the rescue...the main drivers got most of the thrust and the pounding and there are many other photos of Santa Fe 4-8-2's, 2-10-2's etc. with upgraded main drivers.
    I don't know whether LFM was an "ATSF thing" only; I suspect they must have made wheels for other roads as well but I'm not familiar with Midwestern roads...Fun stuff...
    Otto

  7. #27
    Join Date
    Feb 2013
    Location
    Kansas
    Age
    39
    Posts
    16
    Quote Originally Posted by Cajonpassfan View Post
    To my knowledge, it's the only "big Hudson" that got it....there must have been a crack in the original Baldwin driver and LFM came to the rescue......Fun stuff...
    Most definitely! Check out the wheels that 3463 has on her today:

    Click image for larger version. 

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    The wheel on the left is also in the #2 and #3 positions on the right side as well.

    Don't believe I'll be trying to replicate this with the one I'm building!
    Jason

  8. #28
    Join Date
    Sep 2008
    Location
    ATSF LA Division, Second District
    Posts
    1,069
    Jason, a bigger challenge on the 3463 is the 84" diameter.... It's a long legged machine that won't look right on shorter legs/smaller wheels... I know, I built one in the seventies on a shortened Bachmann mechanism and it looked like a beauty queen's ugly sister...
    Well, part of that was my early modeling skills...
    Have fun, Otto

  9. #29
    Join Date
    Feb 2013
    Location
    Kansas
    Age
    39
    Posts
    16
    Quote Originally Posted by Cajonpassfan View Post
    I built one in the seventies on a shortened Bachmann mechanism and it looked like a beauty queen's ugly sister...
    LOL! Yeah, I'm going to be using the Con-Cor Hudson mechanism, so at least it'll be a little closer.
    Jason

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