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Farmall & IHC Tractors Discussion Board

Re: M-SM carb


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Posted by D Slater on April 16, 2010 at 17:54:16 from (71.164.36.122):

In Reply to: M-SM carb posted by CJ_1080 on April 16, 2010 at 15:55:49:

If its the throttle body I think M gas carburetors 50983DB,DC used the same one as SM gas carburetor 356948R91. Earlier M carbs and R92 SM had some small differences. You never know whats in them though, IH made one or two power improvement pakages for the M carbs. I'm thinking 2 passages in the body were pluged when used, or maybe one can't remember for sure, along with other metering parts.
Then there was another kit for fire crater piston kits, IH made a mistake and put the wrong size main seat in some of those kits. They were suposed to be changed out, but Some are still in carburetors or I measured ones somebody drilled. only remember the parts going in the bowl part of carb on them. Also some aftermarket kits were sold that advertized power improvement.
Bowls on M and SM have the choke lever on different sides. most parts can be installed from one carb to the other, how it ends up working depends.


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