kozo A3 switcher build

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sky
Posts: 16
Joined: Thu Mar 22, 2018 2:17 pm

Re: kozo A3 switcher build

Post by sky » Wed Jul 10, 2019 3:02 pm

I see on page 312 of the New Shay book, Kozo says the Adjusting Plugs can be made longer. It would have to be about .7" taller. Does that look correct?
sky

Pontiacguy1
Posts: 937
Joined: Thu Apr 26, 2012 10:15 am
Location: Tennessee, USA

Re: kozo A3 switcher build

Post by Pontiacguy1 » Wed Jul 10, 2019 3:22 pm

Or just machine a piece of pipe to go between the dome and the safety valve if you want them to sit up higher. That's the easiest thing, and you can make it a bit longer and then cut it down to get the exact height you are looking for.

sky
Posts: 16
Joined: Thu Mar 22, 2018 2:17 pm

Re: kozo A3 switcher build

Post by sky » Wed Jul 10, 2019 3:43 pm

Thank you for the idea.
sky

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NP317
Posts: 1838
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon

Re: kozo A3 switcher build

Post by NP317 » Wed Jul 10, 2019 8:38 pm

The pipe extenders for the safety valves was normal practice on many logging locomotives.
~RN
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kenrinc
Posts: 688
Joined: Tue Jul 27, 2010 1:11 pm
Location: SF Bay Area

Re: kozo A3 switcher build

Post by kenrinc » Thu Jul 11, 2019 4:02 pm

On my A3 I actually made a traditional steam dome which Kozo did not do for the A3 because the throttle assembly is brought out onto the top of the rear boiler barrel. My A3 is 1.5" scale so I have a traditional steam dome throttle. Because of that, I fabricated a real dome which gave me the ability to push the safeties higher up in the dome itself. The other suggestions work as well. You could lift them up on pipe nipples or whatever.

Ken-

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