Many British Cars are equipped with SU carburetors as is my MGA. This series of photographs shows some of the steps involved in rebuilding these carburetors.
In the following photo, note the yellow arrow. This is pointing to the carburetor's fuel bowl vent/overflow pipes. If the fuel bowl overflows, which it sometimes does, then these small pipes are to drain the raw fuel safely onto the ground. However, some idiot has cut them off so that raw fuel will drain directly onto the very hot exhaust manifold. Naturaly I had to correct this mess.
In the following photo, note the yellow arrow. This is pointing to the carburetor's fuel bowl vent/overflow pipes. If the fuel bowl overflows, which it sometimes does, then these small pipes are to drain the raw fuel safely onto the ground. However, some idiot has cut them off so that raw fuel will drain directly onto the very hot exhaust manifold. Naturaly I had to correct this mess.
This is what is inside. These are the old parts most of which were replaced with new parts.
These are all of the old parts cleaned and all of the new parts. Now, if I can just get everything back where it belongs.
Well, everything seems to fit OK. Note the repaired fuel vent/overflow pipe.
Here are the carbs back on the engine. Note the yellow arrow indicating the repaired fuel vent/overflow pipes. This is the proper termination so that fuel overflow goes safely onto the ground. 
Air cleaners installed. This completes the engine and it is ready to install in the frame.
Air cleaners installed. This completes the engine and it is ready to install in the frame.
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