Controle de emissões do motor

Engine Emission Control 303-08B-3 303-08B-3 DESCRIPTION AND OPERATION 1 2 E130803 Item Description 1 PCV valve to intake manifold PCV hose 2 Crankcase vent oil separator 3 Crankcase vent oil separator gasket 4 PCV valve PCV System The PCV system consists of a valve mounted in the crankcase vent oil separator (attached to the cylinder block) and two hoses. One PCV hose connects the PCV valve to the intake manifold, the other PCV hose connects the valve cover to the air cleaner outlet pipe. Under idle and part throttle conditions, the crankcase vapor flows from the crankcase vent oil separator to the intake manifold and into the combustion chambers where the vapor is burnt during combustion. Under full throttle conditions, the crankcase vapor flows from the valve cover into the air cleaner outlet pipe through the PCV hose. 4 3