The carburetor
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The carburetor atomizes the fuel and mixes it with air, and controls the delivery of the correct mixture to the engine.
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Mechanical fuel pumps
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The mechanical fuel pump has a diaphragm separating 2 chambers. Moving the diaphragm down draws fuel into the pumping chamber. A spring then moves the diaphragm up, forcing fuel from the pump, into the carburetor.
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Electric fuel pumps
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An electric fuel pump operates with the ignition switched on. It can be controlled so that it operates only if the engine is running.
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Tanks & lines
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Most fuel tanks are in 2 parts joined by a weld around the flanges where the parts fit together. Baffles make the tank more rigid, prevent surging of fuel, and ensure fuel is available at the pickup-tube.
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Fuel lines
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The fuel tank is connected to the engine by fuel lines. A return line may carry excess fuel back to the tank, to keep fuel system components cool.
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Charcoal canister
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Used in some emission systems as a means of preventing pollution to the atmosphere.
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Carburetor filters
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Used to prevent particles from entering the fuel carburetion/injection components. |
