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Case Tractors Discussion Forum

Case VAC Engine Specs?

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08-20-2006 14:25:45

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I have a 1945 and a 1949 VAC to fix up. I'm trying to figure out the engines. They seem to be 3.0 bore X 4.375 stroke. I have a W106 engine that seems the same, but has only 3.750 stroke. My question is: Can I simply change crankshafts and make the W106-52789 into a 124? Also, did Case change the bore and stroke when they started making their own engine after 1947? The specs I've seen for 1947 and up are 3.25 bore x 3.750 stroke. Another parts engine that came with the '49 has an engine number of 19D05031. Is this too new to use in the 1945? Does it belong with a 1949? It also has 3.0 bore, but doesn't have a crank, so not sure of stroke. I'm trying to put the best two engines together and mate them with the right tractor, if possible.

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08-20-2006 19:46:45

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 Re: Case VAC Engine Specs? in reply to cdmn, 08-20-2006 14:25:45  
The G124 gas motor was 3.25x3.75.

The casting numbers from your crankcases and crankshafts would help to figure out what you're working with.

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08-22-2006 20:37:50

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 Re: Case VAC Engine Specs? in reply to Augie, 08-20-2006 19:46:45  
These are VAC-124 engines except the two mentioned. The three that have the heads off are all 3.0 bore. They apparently changed bore and stroke later on.

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