Junior AACA







The Carburetor

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The carburetor is a important part of making the engine run. Its purpose is to combine air & gasoline to provide the right mixture to be able to support an explosion in the combustion chamber of the piston & cylinder. The carburetor is connected to the intake manifold which is connected to each cylinder and piston of the engine.

The air and gas mixture from the carburetor is sucked into the engine piston combustion area through the intake manifold and ignited by a spark from the spark plug to explode the gas and air mixture and push the piston down, giving the engine power. The crank shaft is connected to the pistons and rotated, providing power to the wheels. The burned gas leaves the combustion chamber through the exhaust manifold and out through the exhaust pipe.

The inside view of the carburetor is a "down draft" carburetor from a 1937 Studebaker. This means the air is sucked down into the engine/manifold.

The inside view of the carburetor from a 1929 Model-A Ford. This is an updraft carburetor, however it functions similar to the carburetor above.