Carb bowl gasket

Zachary Hoyt · Feb 23, 2011

I bought a tisco carb kit at my local independent tractor shop and it was nice except that the bowl gasket (the big one in the kit) appeared to be made out of construction paper or something, and I could not get the bowl screws in tight enough to prevent it leaking. I have a roll of cork gasket material from the auto parts store and I am wondering if it would work to cut my own gasket for the bowl. It seems to be about the same thickness as the gasket that was on the bowl, and maybe twice as thick as the new one. Any advice will be very much appreciated.
Zach

old · Feb 23, 2011

Take that gasket from your kit and soak it in gas for an hour then install it and I'll bet it will stop leaking. Or you can just install it and let it leak for a while and it will stop on its own. Seen it happen m,any times and just takes a bit of soaking

Anonymous-0 · Feb 23, 2011

the carb bowl should not leak fuel with no gasket at all while sitting idling. if it does the floats are set too high. if the carb can easily removed, turn it inverted and the floats and float arms should be parallel to the edge of the bowl and should appear the same from both sides. hope this helps..........

sflem849 · Feb 23, 2011

(quoted from post at 20:03:07 02/23/11) Take that gasket from your kit and soak it in gas for an hour then install it and I'll bet it will stop leaking. Or you can just install it and let it leak for a while and it will stop on its own. Seen it happen m,any times and just takes a bit of soaking

Can you treat a gasket with grease to do the same thing?

pete 23 · Feb 23, 2011

I agree the gasket is not for sealing gasoline, it is to seal air to "balance" the carburetor . Just soaking them in hot water will seal them nicely if your carb parts are flat and smooth.

Zachary Hoyt · Feb 24, 2011

Thank you. The carb doesn't leak while idling, only when the tractor is in motion.
Zach

Zachary Hoyt · Feb 24, 2011

Thanks, I guess I'll just hope for the best.
Zach

rustyfarmall · Feb 24, 2011

(quoted from post at 19:40:39 02/23/11) I bought a tisco carb kit at my local independent tractor shop and it was nice except that the bowl gasket (the big one in the kit) appeared to be made out of construction paper or something, and I could not get the bowl screws in tight enough to prevent it leaking. I have a roll of cork gasket material from the auto parts store and I am wondering if it would work to cut my own gasket for the bowl. It seems to be about the same thickness as the gasket that was on the bowl, and maybe twice as thick as the new one. Any advice will be very much appreciated.
Zach

Use NEW screws and lock washers, and run a threading tap through the bolt holes first. A quality carb rebuild is worth new hardware.

Brownie 450 · Feb 24, 2011

Is the bowl flat on the mating surface? If the corners are "pulled" a little, put a sheet of 100 grit emery cloth on a 2x6 & stroke the bowl across the emery cloth until flat. As Russ said--drill out the unthreaded holes.

Carb bowl gasket

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Zachary Hoyt

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