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 Post subject: steam locomotive gauge conversion
PostPosted: Mon Nov 12, 2018 9:42 pm 

Joined: Sat Mar 09, 2013 4:52 pm
Posts: 15
can a 5ft gauge steam locomotive be converted to standard gauge ?


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Mon Nov 12, 2018 10:58 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 5550
Location: southeastern USA
Yes. The amount of difficulty will vary, of course...…. depending on how it is constructed.

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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 13, 2018 5:57 am 

Joined: Wed Sep 25, 2013 12:36 am
Posts: 269
Location: Anchorage, Alaska
The Alaska Railroad got about 25 2-6-0s from the 5 foot gauge (Panama) Isthmus Canal Commission railroad, ca 1915. Driver gauge was changed with wide tires. It appears they did the same on the lead trucks. One problem is that the wider drivers would would climb up on the ice that formed on the outside of the rails at grade crossings.

The five foot gauge USSR USATC S-160 Consolidations widened the frame spacing
and used different cylinder blocks than were used on the standard gauge version.

http://www.alaskarails.org/pix/former-l ... index.html


Last edited by Dick_Morris on Sun Nov 18, 2018 7:02 pm, edited 1 time in total.

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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 13, 2018 1:39 pm 

Joined: Thu Mar 15, 2007 12:47 pm
Posts: 87
Location: Arizona
I believe the "Russian" Decapods were re-gauged from 5' to standard by adding wider tires.

Just stay way from self-guarding switch frogs.


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 13, 2018 1:40 pm 

Joined: Sun Aug 22, 2004 9:54 am
Posts: 845
Location: NJ
Self guarding frogs would also be an issue using wider tires. WM Shay 6 was built that way, and I understand her deadhead move from Baltimore to Cass took quite some time, gently easing over many switches.


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 13, 2018 5:34 pm 

Joined: Sat Mar 09, 2013 4:52 pm
Posts: 15
thinks guys but what about the frame i fond a this on the same topic 3 years back
and it said the frame need to be cut to size i would like to know if this is truth or not and i would like to know the different ways a steam locomotive can be regauged .


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 13, 2018 6:02 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 5550
Location: southeastern USA
The width of the frame and width of the saddle / cylinder castings have most to do in determining whether or not the locomotive can be easily (relative term) regauged. The saddle is set up to hold the frames at a designed width, which then runs down the entire frame of the locomotive. If the frame was designed to be narrow enough to allow for extra wide tires to be applied to reduce the gauge, you are lucky. If it wasn't, you are in for a lot of heavy work and might as well build a new everything under the boiler recycling some useable old parts if possible, like wheel centers and valve gear.

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Corollary: "He who does is doomed to watch those who don't repeat it anyway."


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 20, 2018 10:45 pm 
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Joined: Fri Oct 24, 2008 9:05 pm
Posts: 762
Location: MA
So how would adding wide tiers to a alride wide wheel base convert it to a narrow 4'8.5"?


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 Post subject: Re: steam locomotive gauge conversion
PostPosted: Tue Nov 20, 2018 11:03 pm 

Joined: Sun Aug 22, 2004 7:19 am
Posts: 5550
Location: southeastern USA
The width of the tires allows the flange to be further back towards the center line of the locomotive. The wheel centers could have ordinary width tires on them for flanges at the original 5 foot gauge. Think from the outer surface of the wheel center in rather than out.

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Corollary: "He who does is doomed to watch those who don't repeat it anyway."


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