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Steam Stationary Engines, Traction Engines Antique steam engines, their boilers, pumps, gauges, whistles and other related things that make them run.

Steam Stationary Engines, Traction Engines

Case Governor Info


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  #1  
Old 05-14-2018, 06:34:17 PM
KenH KenH is offline
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Default Case Governor Info

So i seek the expertise of the steam gods, I have a 1912 60hp case, my question is what size judson governor should it have? Mine currently has a 2 inch governor, there is a reducing elbow coming off the 2 1/2 inch throttle valve. The few 60"s in my circle have 2 1/2 inch judson's and Pickerings on them. interested in finding out everyone else has, and what case actually offered. looked threw the books i have and nothing specific governor size.

thank you for any help.

ken
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Old 05-14-2018, 08:26:54 PM
Glenn Gieszler Glenn Gieszler is offline
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Default Re: Case Governor Info

I picked a general 1912 build sheet, it was supplied with a 2 1/2 governor, brand not specified
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Old 05-14-2018, 08:32:45 PM
KenH KenH is offline
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Default Re: Case Governor Info

Thank you, this is what i was thinking it should have but was not sure. my engine runs very good now, wondering if that 1/2 inch would make the difference in a few more ponies ? would be neat to break that 80 hp mark on pony break !!
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Old 05-14-2018, 11:30:26 PM
halcon halcon is offline
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Default Re: Case Governor Info

Quote:
Originally Posted by Glenn Gieszler View Post
I picked a general 1912 build sheet, it was supplied with a 2 1/2 governor, brand not specified
2 1/2" inch is the size for a 60. 1910 and later it should be a Judson. There are a lot of cases where a leaf spring Judson gets called a Pickring as they look quite similar.
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Old 05-15-2018, 09:39:53 AM
Odin Odin is offline
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Default Re: Case Governor Info

That's interesting, because most of the Case engines I've seen have what looks like a Pickering governor on them.

I guess next season I'll have to pay attention to the throttle body casting, since Pickering governors say so on that component, while a Judson probably says something else or nothing at all.

Sounds like a Case with a Pickering on it would be either a factory option, or a field modification when the original governor wore out or was found to not perform well enough for the job.

In the process of looking up info about the Judson governor, I found this thread:

https://www.smokstak.com/forum/showthread.php?t=27295

The information on how the governor's motion changes over the link's travel is actually quite interesting, since it goes on to explain how the adjustments interact to control the governor's sensitivity.

The same thread further down mentions how it is possible to use the sawyer's lever to check the integrity of a governor's seals by forcing it shut and seeing just how far it slows the engine down. Could the same effect be achieved on a governor with a safety arm by cracking the manual throttle with the belt off and then watching that the engine ticks over gently?
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Old 05-15-2018, 03:06:54 PM
halcon halcon is offline
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Default Re: Case Governor Info

Take a good look at the weight balls if there is a three legged spider with it's legs entered in holes in the weights it is a Judson leaf spring.--------If it has U shaped staples that go around the center spindle to guide the balls it is a Pickering.
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Old 05-15-2018, 05:55:52 PM
KenH KenH is offline
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Default Re: Case Governor Info

thanks again for everyone's in put, i have sourced a 2 1/2 inch judson governor. and look forward to installing it when i reboiler my engine this fall.

Steam show this weekend in cedar rapids, iowa. the season officially starting for us in southeast iowa. Everyone stay safe and keep your on the sight glass!!!
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