HAVAL 4S20 - Page 23

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4C20 Gasoline Engine Repair Manual

12 - Turbocharger Oil Inlet Pipe 13 - Turbocharger

Oil Inlet Pipe Bolt 14 - Turbocharger Inlet Gasket 15 - Turbocharger

Outlet Gasket 16 - Turbocharger Mounting Bracket

Adapter Gasket 17 - Turbocharger Mounting Bracket 18

- Turbocharger Wastegate Connecting Hose 19 - Control Hose

boost pressure control valve (TCV) 20 -

Turbocharger control valve 21 - Turbocharger control valve 22 -

Turbocharger

Machine Translated by Google

Main Page

Table of Contents7
Chapter I. Introduction9
Section I. Terms of Use of this Manual9
Markings11
Chapter II. Technical Information about the Engine12
Section I Main Specifications12
Section II Tightening Torques for Threaded Connections13
Chapter III. Inspection Intervals and Service Intervals13
Chapter IV. Engine Attachment14
Section I. Engine Attachment Layout15
Section II. V-Ribbed Belt15
Section III. Generator16
Section IV. Air Conditioning Compressor17
Section V Idler Pulley and Engine Attachment Drive Belt Tensioner18
Section VI. Power Steering Pump19
Section VII. Starter20
Section VIII. Bracket for Fastening the Front Support and Branch Pipe of the Forced Crankcase Ventilation System21
Chapter V. Turbocharging System22
Section I. Layout of the Turbocharging System22
Section II. Turbocharger24
Chapter VI. Inlet and Outlet Systems30
Section I. Intake System30
Section II. Exhaust System34
Chapter VII. Supply System38
Section I. Power System Layout38
Section II. Supply System39
Chapter VIII. Cooling System44
Section I. Coolant44
Section II. Coolant Pump45
Section III. Thermostat50
Section IV. Hot Coolant Outlet Pipe52
Chapter IX. Lubrication System54
Section I. Oil Line54
Section II. Engine Oil55
Section III. Sump, Oil Receiver and Oil Pump58
Section IV. Oil Cooler and Oil Filter63
Chapter X. Cylinder Head68
Section I. Cylinder Head Cover68
Section II. Cylinder Head72
Section III. Valve Mechanism78
Section IV. Timing Chain86
Section V. Oil Pump Drive Chain and Drive Chain Balancer Shafts90
Chapter XI. Cylinder Block94
Section I. Piston Connecting Rod94
Section II. Rear Crankshaft Oil Seal101
Section III. Timing Mechanism Cover (GRM)104
Crankshaft108
Section V. Balance Shaft115
Chapter XII. Engine Management System118
Section I. Installing the System Sensors118
Section II. General Information about the System120
Section III. Basic Control Algorithms123
Components of the Electronic Control Unit130
Diagnosis System Car150
Section VI. Daily and Periodic Maintenance177
Section VII. Repair Tools178
Section VIII. Troubleshooting for Common Troubleshooting179
Section IX. Typical Data Received from the Delphi Electronic Fuel Injection System189
Section X. Self-Adaptation of the European-Standard On-Board Self-Diagnosis (EOBD) System in the Event of a Malfunction of the Crankshaft Position Sensor192

HAVAL 4S20 - Page 23

Table of Contents