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Leaky carb

B

Baney

New User
Hey, First off just wanted to say thanks for the help last week with my resistor problem! I was able to dial in the specific amount of ohms very easily once I knew how to do it!

Todays brow scratcher is a leaky carb. I tore the carb apart and used a tractor supply rebuild kit and rebuilt it to the specs on the carb overhaul section of the manual. I did this because I noticed that when I turned on the gas the carb would leak out of the air intake. Upon completing the overhaul this is still happening! Any Ideas?
 
Probably, the needle shut off (located above the float, and held there via a small wire "clip" is either out of place, or a speck of dirt,or foriegn object is keeping the needle from "seating" in its place, thus not stopping the flow of gasoline from coming in as the float rises. Pull off the carburetor bottom, and clean the needle seat, and recheck to see that the needle is installed properly, and then re-install the carb. bottom.
 
That can be caused by a number of things. Dirt in the needle area, float sticking or has a hole in it, Needle seat not as tight as it should be and gas is leaking past, Or you new needle is a rubber tipped one and you need to set it so it will seal. To set it take the carb back off and open it up. Drop the needle into the seat and then tap on it few times with something small enough to fit. What that does it sets the rubber end so it will then seal as it should
Hobby farm
 
Had a few NAPA kits that didn't have the passage cut in the bowl/throttle body gasket to allow the bowl to vent properly. They would drip gas out of the intake when the engine was shut off although the engine would run normally. Cutting a passage in the gasket to allow the bowl to vent fixed it. This was on a Zenith carb on a Farmall B. Might be your problem too.
Paul
 
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