I will see if I can get a scanned picture, but my manual shows the measurement from the upper carb surface, not the gasket surface. The measurement is from the flat surface of the upper carb body to the bottom (or top, as you're upside-down) of the float. Also, inside the fuel inlet connection there is a fine screen mesh that can get clogged and/or rusted up if there was ever water in the tractor's fuel system--another thing to check.
If the carb is set excessively rich it is possible it is drinking gas faster than the fuel tank can supply it. Is the air filter connected? If it is clogged, the mix will be rich. But if it is removed, the engine will run lean (getting too much air). The air filter has no replaceable element: just a metal mesh and an "oil bath" in the bottom cup that keeps the mesh wet & sticky with oil. That oil needs to be checked and replaced very so often. The mesh itself can be rinsed clean with kerosene.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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