Re: Farmall A carb leaking gas

Posted by Bob on February 01, 2005 at 10:17:17 from (66.163.134.177):

In Reply to: Farmall A carb leaking gas posted by JSB on February 01, 2005 at 10:01:01:

It leaks because the float bowl is overfull, and overflowing, due to the inlet needle valve not being able to completely stop the incoming flow of gas.

You may have a bent float that's jamming against the float bowl, incorrect float level setting, a chunk of dirt in the valve, etc..

Also, the brass inlet valve seat needs to be TIGHT, otherwise, the gas may leak past the inlet valve gasket.

Also, on some carbs, if the main nozzle is not properly tightened in place with a good gasket, you can have a leak there, into the air horn.

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