303-08B Controle de emissões – geral

Engine Emission Control 303-08B-1 303-08B-1 . SECTION 303-08B Engine Emission Control VEHICLE APPLICATION: 2011.50 Ranger CONTENTS DESCRIPTION AND OPERATION Engine Emission Control.................................................................................................... Vehicles with 2.5L Duratec-HE engine............................................................................... REMOVAL AND INSTALLATION Crankcase Vent Oil Separator – 2.5L Duratec-HE (122kW/165PS) - MI4........................ PAGE 303-08B-2 303-08B-2 303-08B-4

Engine Emission Control 303-08B-2 303-08B-2 DESCRIPTION AND OPERATION Engine Emission Control Vehicles with 2.5L Duratec-HE engine 3 1 2 E130804 Item Description 1 Valve cover 2 Air cleaner assembly 3 Valve cover to air cleaner outlet pipe positive crankcase ventilation (PCV) hose

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

Engine Emission Control 303-08B-4 303-08B-4 REMOVAL AND INSTALLATION Crankcase Vent Oil Separator – 2.5L Duratec-HE (122kW/165PS) - MI4 Removal NOTE: Removal steps in this procedure may contain installation details. 1. NOTE: The gasket is to be reused unless damaged. NOTE: Make sure that the mating faces are clean and free of foreign material. Torque: 11 Nm x8 E130837 Installation 1. To install, reverse the removal procedure.