Posted by Owen Aaland on September 12, 2007 at 15:55:20 from (65.161.86.86):
In Reply to: Farmall B-carb posted by Dave H (MI) on September 12, 2007 at 10:12:33:
One other way you could be getting too much fuel into the intake is if the gasket is leaking on the main metering tube or the tube itself is damaged. If the gasket is leaking it will allow fuel to get in below the venturi even if the float level is correct.
To check the float level while the carb is assembled on the tractor, get a hose barb fitting that will screw into the hole for the drain plug. (I think it is 1/8 inch NPT) Use a piece of clear hose to connect to the fitting and run it up along the side of the carb. When you turn on the fuel you should see it rise up to the same level as it is inside the carb. I do not know what the correct height should be but it must be below the bottom hole in the metering tube.
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