Well the first thing to do was to stop the gas leak from the carburetor. The gas tank has an original style sediment bulb with shut off, so obviously turn the gas off at the source. Whoops that didn't work, now the shut off is leaking. Time to drain the tank and then track down the problems. Put a gas can under the sediment bub and opened the bottom drain cock, after poking a few times to clear the rust sediments the gas ran out fine. stepped out to check a few other things and when I came back the tank was empty, and the gas can was full to the brim. Not thinking to check the amount of gas in the tank I had put a 2 gallon container under the tank and that is exactly what the tank had in it. I knew there was not much in it as it had stalled backing off the trailer when it was starved for gas.
Removed the carburetor from the intake manifold and proceed to take it apart. It is a Kingston L4 carburetor. Cleaned it up well and replaced the following gaskets, top bowl, bottom bowl, and drain petcock. Also the drain petcock nut was split so I found a replacement for it. Not having the setup for the float I set it as I had done previously one my father in-laws '22 touring NH carb and reinstalled the carburetor on the engine.
Attempted to remove the sediment bulb from the gas tank but it would not budge. Rather than try and force things and risk damaging the tank I removed the petcock from the bulb and also the outlet cap and screen. The screen was in pretty sad shape and was probably not doing a whole lot of good. Replaced it and also the lead gasket. Using some lapping compound, worked the shut off petcock taper to clean up the seal. Reinstalled the petcock in the bulb and put some new washer on the spring end which were slightly thicker than the ones that were on there providing a slight increase in seating pressure.
Now back to the carburetor, put a right angle shut off valve on the inlet. The gas line is a 5/16 copper line with a compression fitting on the end, well the shut off valve was designed for 1/4 compression fitting. Searched high and low for a 5/16 fitting to work in a 1/4 end, no luck. Ended up installing a brass pipe coupling to go from the 1/4 to 5/16 fitting. All's well.
Turned on the gas not leak at the tank but the carburetor is leaking out the bottom hole at the base of the bowl. Of course the float is set whey to high. found the proper specification for the float setting for the Kingston. and readjusted. Every thing sealed up fine.
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