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Cummins HB new to me, maybe early 1945, photos


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  #11  
Old 07-12-2017, 11:26:28 PM
dieselsteveo dieselsteveo is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

I agree the large arch cutout on the frame is not Cummins original and was done for whatever reason (access to oil, interference with something on the application, etc) by a previous owner.

I'm working on what revision B means. I know we updated the Model H design over time (e.g.: the very earliest H's still had Babbitt bearings), so I'm sure it has to do with that. Not sure what all was changed for revB

In regards to the oil pan, will be hard, but probably not impossible to find. You will need to find another engine as a source of parts or connect with people who have engines to part out. My current connections have automotive H's, so not the same pan as your engine. As far as the gasket, you could get a sheet of cork and cut it out yourself if you want for pretty cheap. If you'd prefer to buy one, let me know and I'll find one for you.
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Old 07-13-2017, 12:16:08 PM
dieselsteveo dieselsteveo is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

Revision 'B' of the Model H happened in 1935. It included larger crankshaft journal diameters, modern replaceable bearing shells, and an increase in rated HP from 125HP to 150HP
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Old 07-13-2017, 01:09:19 PM
mschreiber mschreiber is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

2 me the cut out arch with welded flat looks the most professional part of the skid. The skid channel is 15" tall with the front and rear cross members being 3" off the deck, not much clarence to get anything under it. Sooo the auto and pd unit oil pans are different… even being "h" models? thanks 4 ur help.

Quote:
Originally Posted by halcon View Post
Most of the larger cranes and shovels had air assisted controls. That could explain the compressor.
better than air brake compressor to stop the BUS when i wanna get off.
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Old 07-13-2017, 10:47:07 PM
moteurdelco moteurdelco is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

i think than a NH220 or H 180 PAN will bolt on your engine.
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Old 07-14-2017, 12:18:56 AM
dieselsteveo dieselsteveo is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

To clarify, the H (like all our engines) had a number of different oil pan options. ALL of them bolt to the same block and thus have the same bolt pattern. The differences are:
--location of the oil pickup/suction
--built-in oil filter or external
--capacity

Technically any H oil pan you get will fit on your engine, but some may take a few more tweaks/mods than others to function. Your engine was built with a oil filter in the pan. If you were to get an oil pan without the built-in filter, then you should add an external oil filter. Get the idea?
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Old 07-30-2017, 11:41:17 AM
mschreiber mschreiber is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

Some photos and questions. It appears to be bendix-westinghouse compressor. But what is the b-w thingy the pen is pointing out? Was it part of the PT fuel system update? What is a PT fuel system? and what does pt mean? thanks 4 any help.







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Old 07-30-2017, 01:36:46 PM
The Diesel Doctor The Diesel Doctor is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

IT says Bendix Westinghouse on the cover plate and the lines appear to go to the air compressor. It could be an early type of air pressure regulator. AL
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Old 07-30-2017, 09:35:19 PM
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Default Re: Cummins HB new to me, maybe early 1945, photos

Hey Mike! This is Mike from NJ.
Really nice engine you got there!
PT stands for "Pressure-Time"
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Old 08-01-2017, 12:51:47 PM
Sooty Jim Sooty Jim is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

Here are some specs and pics from 1944 and assuming this engine actually does date from that era, it would be an "H," right, not an HB, which shows up in my '56 book. This spec chart appears to list everything from that era.

I also included a pic of the H-600 and the HS-600, which was supercharged and made 200 hp.

My '56 book ale shows an HRB-600 which had a 5-1/8" bore vs the 4-7/8" on the HB-600.



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Old 08-09-2017, 09:27:46 PM
moteurdelco moteurdelco is offline
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Default Re: Cummins HB new to me, maybe early 1945, photos

I think ;h,hb,hr,hrs-600 are all 4''7/8;so 600 cubic inches.
5 1/8'' cyl. were named H,HB,HR,HRS,NHetc-743, some with 2 valves/cylinder and others 4 valves/cyl.
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