Carbon Canister

Canister is mounted in engine compartment and consists of a container filled with activated carbon with a replaceable filter pad at the atmospheric air vent in the bottom of the canister. Vent line from separation tank is connected to top of canister and fuel vapors from the tank are absorbed by the activated carbon when the engine is not running. A second vent line on canister is connected to carburetor float bowls (some models only) to collect fuel vapor from the carburetor bowls. Center connection on top of canister is purge line connected to engine valve cover. When engine is running, fuel vapors and air drawn in through bottom of canister will be drawn into the engine and then emitted through the regular crankcase ventilation system to the intake manifold and burned in the combustion system. This purging action will renew the absorbing capacity of the activated carbon.