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Farmall & IHC Tractors Discussion Forum
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Farmal A and Super A Blocks Is There A Difference?

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Rolling_rust

12-23-2006 09:39:44




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Is there a differnce between a Super A and a A block?




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Hugh MacKay

12-23-2006 13:57:16




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 Re: Farmal A and Super A Blocks Is There A Differe in reply to Rolling_rust, 12-23-2006 09:39:44  
Besides the difference Jesse mentioned, after serial number 310000 the Super A received a C-123 block using thicker sleeves than the Super C, thus still giving it 113 cubic inches.

I expect the reason for this is by 1951, the Super A was the only tractor with 113 cubic inch engine, thus it was easier to make two different sets of sleeves than it was to cast two separate blocks. There were some slight modification to Super A final drives, transmission and clutch before IH turned it into a C-123 engine in late 1954.

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James2

12-23-2006 20:50:46




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 Re: Farmal A and Super A Blocks Is There A Differe in reply to Hugh MacKay, 12-23-2006 13:57:16  
We got bit hard with this one. Put the sleeves in and although they seemed too loose, continued the rebuild. Filled the engine with oil and then coolant. Within a few minutes the coolant started coming out the oil fill. Took them back to the CIH dealer and ordered the thicker SA sleeves for the later engine.



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Jesse

12-23-2006 10:07:04




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 Re: Farmal A and Super A Blocks Is There A Differe in reply to Rolling_rust, 12-23-2006 09:39:44  
One big difference is the mount on the lower front of the block where you mount the hydraulic pump. The straight A has none. The Super A does. This allows the lines to go from the pump to the hydraulic box. That is the basic difference.



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