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Discussion Forum
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Re: AC baby block engine

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D13

09-26-2002 08:50:18




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My B has a CR engine in it. It appears to be one of two things.

1. A CE engine from a combine - mine had the combine oil deflector trough in it.

2. A factory replacement block / engine.

All the normal CE parts weem to bolt right on, so I'm assuming it's the later 125cid motor. I didn't have to go into the long block but I suspect the CA parts (only sleeve/piston combo available) will fit.

Of course, my "1939" has foot brakes, belt/PTO/hydraulics, electric start, etc.

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Phil Munson

09-26-2002 10:01:39




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 Re: Re: AC baby block engine in reply to D13, 09-26-2002 08:50:18  
Thanks D13. So what is the story, do you think it is a 3.5" or a 3.875" stroke? When you had your engine apart, noticing the oil deflector trough, did you check the stroke?



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Will

09-26-2002 12:31:14




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 Re: Re: Re: AC baby block engine in reply to Phil Munson, 09-26-2002 10:01:39  
All the motors were 3.5 stroke until they came out with the D series.



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Phil Munson

09-26-2002 13:51:02




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 Re: Re: Re: Re: AC baby block engine in reply to Will, 09-26-2002 12:31:14  
Thanks Will. One of the books I have, Swinford or Wendel, says that the power units, for the combines etc, were 138s or 149s. Do you know if they were always identifed as G138 or G149? Were any of the later CRs were ever equipped with the 3.875 crank?



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Butch (OH)

09-26-2002 14:52:48




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 Re: Re: Re: Re: Re: AC baby block engine in reply to Phil Munson, 09-26-2002 13:51:02  
I believe you are mistaken on the combine motors Phil. I don't know of any models using a G-138 or 149. The early pull types used a B-125 when equiped with a power unit. The All-crop 100 and super 100s used W-201s and 226s respectively and the W226 was carried over into the Gleaner line. Although I have not tried it, I have been told that the 138-149 crank will not work in the 125 engines, at least without major machine work

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CHALMERS BOB

09-27-2002 14:38:24




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 Re: Re: Re: Re: Re: Re: AC baby block engine in reply to Butch (OH), 09-26-2002 14:52:48  
CR ENGINE BLOCKS ARE USUALLY B125 POWER UNITS AS USED ON COMBINES AND BALERS. THEY ARE BASICALLY THE SAME AS THE "C" ENGINE. I RECENTLY INSTALLED ONE ON ONE OF MY "CA'S". EARLIER POWER UNITS B15'S, HAVING THE 116 CU. IN. ENGINE. LATER ONES WERE 149 CU IN. UNITS



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