Re: Farmall M carburetor question

Posted by captaink on February 15, 2006 at 06:51:27 from (66.115.214.56):

In Reply to: Farmall M carburetor question posted by FMS-KS on February 14, 2006 at 19:40:38:

The icing is caused by the effect of the air passing through the venturi (the smallest diameter air flow area) where the fuel is added to the air in the carburetor. As the air passes through the venturi, it speeds up and the evaporating fuel causes the temperature of the air to drop. This causes condensation to begin to form from just before the throttle plate to where ever the manifold is warm enough to evaporate the condensation away. In freezing or near freezing temperatures this condensation turns to ice or the freezing condition that you note. There is nothing you can do to eliminate it.

A different manifold may help, a comfort cover or heat houser will help, or if you can think of another way to preheat the air as it comes in.

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