Mitsubishi 6M70 - Rocker Cover, Rocker and Shaft

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11-26

M

ITSUBISHI 6M70 ROCKER COVER, ROCKER AND SHAFT

Table of Contents

Group Index1
Diagnosis Codes2
Systems and Diagnosis Code Displaying Methods2
Reading and Erasing the Diagnosis Code3
To Perform System Inspection4
To Use Drive Recorder Function4
To Extend the Multi-Use Tester Test Harness4
Using Flashing of a Warning Lamp on Meter Cluster5
Table of Standard Tightening Torques8
Table of Contents11
Engine11
Specifications12
- Engine Diagram13
- Engine Proper13
- Rocker and Shaft, Camshaft, Rocker Case and Cylinder Head Gasket14
- Valve Mechanism14
- Connecting Rod15
- Piston15
- Flywheel16
- Flywheel PTO17
- Powertard Brake System18
- Powertard Brake System Troubleshooting22
Structure and Operation13
On-Vehicle Inspection and Adjustment24
- Measuring Compression Pressure24
- Inspection and Adjustment of Valve Clearances26
- Inspection and Adjustment of Powertard Clearances30
Engine Removal and Installation32
- Engine Inspection33
- Rocker Cover, Rocker and Shaft36
Rocker Cover, Rocker and Shaft38
- Camshaft and Rocker Case Disassembly and Assembly40
- Camshaft and Rocker Case Inspection42
- Cylinder Head and Valve Mechanism48
Cylinder Head and Valve Mechanism50
Piston, Connecting Rod and Cylinder Liner64
Piston, Connecting Rod and Cylinder Liner66
Flywheel Pto <With Flywheel Pto78
- Flywheel Disassembly and Assembly82
- Inspection: Flywheel84
- Installation: Flywheel Housing85
- Installation: Air Compressor86
- Installation: Rear Oil Seal86
- Installation: Ring Gear86
- Installation: Flywheel86
- Timing Gears Without Flywheel PTO Disassembly and Assembly88
- Timing Geards Inspection90
Timing Gears <Without Flywheel Pto90
- Timing Gears with Flywheel PTO92
- Crankshaft and Crankcase98
Crankshaft and Crankcase100
- Lubrication107
- Lubrication System Specifications108
- Lubrication System109
- Lurication System Structure and Operation109
- Oil Cooler109
- Oil Pump109
  - Oil Pump110
  - Bypass Valve111
  - Oil Cooler111
  - Engine Oil Bypass Alarm Switch112
- Full-Flow Oil Filter112
- Bypass Oil Filter113
  - Engine Oil Pressure Switch113
  - Regulator Valve113
- Lubrication of Engine Components114
  - Main Bearing and Connecting Rod Bearing114
  - Check Valves and Oil Jets115
  - Valve Mechanism115
  - Air Compressor116
  - Supply Pump116
  - Turbocharger116
  - Lubrication System Troubleshooting117
- Oil Filter Replacement118
- On-Vehicle Inspection and Adjustment118
- Engine Oil Replacement120
- Oil Pressure Measurement121
  - Oil Jets, Oil Pan Disassembly and Assembly122
  - Oil Pump, Oil Strainer Disassembly and Assembly124
- Oil Pump, Oil Strainer126
  - Oil Filter Disassembly and Assembly128
  - Oil Cooler Disassembly and Assembly130
- Regulator Valve130
  - Oil Cooler Inspection131
  - Regulator Valve Disassembly and Assembly132
  - Fuel and Engine Control133
  - Fuel System Specifications134
  - Common Rail System136
  - Fuel System Structure and Operation136
  - Supply Pump Diagram138
  - MPROP (Rail Pressure Control Valve)140
  - Common Rail141
  - Injector142
  - Electronic Control System145
  - Fuel Injection Control147
  - Auxiliary Brake Function149
  - Electronic Control Unit Connection Diagram150
- Engine Control152
- Fuel Filter153
- Water Separator154
- Fuel System Troubleshooting156
- Diagnosis Procedure158
- Fuel System Diagnosis158
- Diagnostic Precautions159
  - Fuel System Inspections Based on Diagnosis Codes160
  - Atmospheric Pressure Sensor Troubleshooting162
  - Diagnosis Code Generation Conditions and Inspection Items162
  - INT Air Temp SNSR Troubleshooting162
  - Accel Pedal Check (Plausibility)163
  - Accel Pedal Sensor 1 Troubleshooting163
  - Water Temp SNSR Troubleshooting163
  - CRS Pressure SNSR (Low) Troubleshooting164
  - Fuel Temp Sensor (Inlet) High Troubleshooting164
  - Fuel Temp Sensor (Inlet) Low Troubleshooting164
  - CRS Pressure SNSR (High) Troubleshooting165
  - Injector Circuit 1 Troubleshooting165
  - Injector M/V-Cylinder (Load) Troubleshooting165
  - Engine Overrunning167
  - Accel Pedal Sensor 2 Troubleshooting168
  - PTO Accel Pedal Sensor Troubleshooting168
  - Boost Press SNSR (High) Troubleshooting169
  - Boost Press SNSR (Low) Troubleshooting169
  - PTO Accel Sensor Troubleshooting169
  - Common Rail Pressure Defect Troubleshooting170
  - Engine Revolution SNSR Troubleshooting171
  - Camshaft Position SNSR Troubleshooting172
  - Idle Volume Troubleshooting172
  - Vehicle Speed Sensor Troubleshooting172
  - Accel SW Troubleshooting173
  - CAN Communication Troubleshooting173
  - M/V Supply Voltage Troubleshooting173
  - ECU System (Hardware) Troubleshooting174
  - PTO Adjustment Resistor (Low) Troubleshooting174
  - Q Adjustment Resistor (High) Troubleshooting174
  - Q Adjustment Resistor (Low) Troubleshooting174
  - Common Rail Pressure M/V Troubleshooting175
  - Injector Circuit Troubleshooting175
  - PTO Adjustment Resistor (High) Troubleshooting175
  - PRV Opening Troubleshooting176
  - Rail Pressure M/V 1 (Long Short) Troubleshooting178
  - Rail Pressure M/V 1 (over Load) Troubleshooting178
  - Rail Pressure M/V 2 (over Load) Troubleshooting178
  - Auxiliary Brake M/V Troubleshooting179
  - Rail Pressure M/V 2 (Long Short) Troubleshooting179
  - Revolution & Position Sensor Troubleshooting179
  - Sensor Supply Voltage Troubleshooting180
  - ECU System (EEPROM) Troubleshooting181
  - ECU System (Software) Troubleshooting181
- Multi-Use Tester Service Data182
- Actuator Tests Performed Using Multi-Use Tester184
- Electronic Control Unit Connector Terminal Layout186
- Inspections Performed at Electronic Control Unit Connectors186
- Inspecting No-Load Minimum and Maximum Speeds190
- On-Vehicle Inspection and Adjustment190
- Draining of Deposit in Fuel Tank191
- Inspection of Fuel Leakage191
- Inspection of Injection Pipe and Fuel Pipe Mounting Clamp191
- Air-Bleeding of Fuel System192
- Fuel Filter Replacement193
- Cleaning of Gauze Filter194
- Water Separator Element Replacement195
  - Common Rail Removal and Installation197
  - Fuel Supply Pump Removal and Installation198
  - Supply Pump Installation200
  - Fuel Pipe Installation201
  - Injector Removal and Installation202
- Injector204
  - Fuel Tank Removal and Installation206
  - Fuel Filter Disassembly and Assembly208
  - Water Separator Removal and Installation212
  - Engine Control Removal and Installation216
  - Electrical Parts Inspection220
- Inspection of Electrical Equipment222
  - Inspection of MPROP224
  - Electrical Parts Location226
- Installed Locations of Parts226
- Electric Circuit Diagram234
- Cooling239
- Cooling System (Flow of Coolant)240
- Cooling System Specifications240
- Thermostat240
- Water Pump240
  - Flow of Coolant Diagram241
  - Cooling System Structure and Operation242
  - Thermostat242
  - Water Pump242
  - Cooling System Troubleshooting243
  - Cooling System Inspection and Adjustment244
- Inspection and Adjustment of Belt Tension244
- On-Vehicle Inspection and Adjustment244
- Inspection of Belts246
- Coolant Replacement and Cleaning of Cooling System247
- Draining of Coolant247
- Air Bleeding of Cooling System249
- Coolant Leakage Test249
- Gas Leakage Test249
- Disconnection and Connection of Hoses and Pipes250
  - Radiator and Fan Shroud Removal and Installation254
  - Radiator Disassembly and Reassembly256
  - Surge Tank Disassembly and Assembly262
  - Cooling Fan and Belt Removal and Installation264
  - Water Pump Disassembly and Assembly266
- Water Pump268
  - Thermostat Disassembly and Assembly272
  - Thermostat Inspection273
  - Intake and Exhaust274
  - Intake and Exhaust System Specifications275
- Air Cleaner276
  - Intake and Exhaust System Structure and Operation276
  - Turbocharger Diagram277
- Turbocharger Control System278
- Diesel Particulate Filter281
- Intake and Exhaust System Troubleshooting282
- Measurement and Adjustment of Turbocharger Boost Pressure283
- On-Vehicle Inspection and Adjustment283
- Nuts284
- Check for Cracks and Gas Leakage in Exhaust Manifold285
- Check for Cracks and Gas Leakage in Turbocharger285
- Cleaning and Inspection of Air Cleaner Element285
- Diagnosis Procedure287
- Diagnostic Precautions287
  - Turbocharger Control System Diagnosis287
  - Turbocharger Control System Inspections Based on Diagnosis Codes288
  - VGT Troubleshooting289
  - Turbine Overrunning292
  - Turbine Revolution SNSR (High) Troubleshooting292
  - Turbine Revolution SNSR (Low) Troubleshooting292
- Actuator Tests by Multi-Use Tester293
- Multi-Use Tester Service Data293
- Inspection of Electrical Equipment294
- Installed Locations of Parts295
  - Turbocharger Control System Electric Circuit Diagram303
  - Air Cleaner Removal and Installation307
  - Air Cleaner Inspection and Cleaning308
  - Turbocharger Attaching Parts309
  - Turbocharger Disassembly and Assembly311
  - Positioning of Air Cylinder Adjustment316
  - Cartridge Assembly317
  - Shaft and Turbine Wheel Inspection319
  - Thrust Bearing Inspection320
  - Intercooler Inspection321
  - Intercooler Removal and Installation321
  - Intake Manifold Disassembly and Assembly323
  - Intake Manifold Inspection324
- Exhaust Manifold325
- Exhaust Pipe Disassembly and Assembly327
- Except Fs329
  - Diesel Particulate Filter (FS) Disassembly and Assembly331
  - Diesel Particulate Filter (FS) Inspection332
  - Diesel Particulate Filter (Except FS)333
  - Emission Control335
- Exhaust Gas Recirculation System336
- Structure and Operation336
- Exhaust Gas Recirculation Valve Control Function339
- Blowby Gas Return System341
- Check for Cracks and Damages in Piping of Blowby Gas Return System342
- Check for Cracks, Damages and Looseness in Piping of342
- On-Vehicle Inspection and Adjustment342
- Replacement of Positive Crankcase Ventilation Valve Element342
- Diagnosis Procedure344
- Diagnostic Precautions344
  - Exhaust Gas Recirculation System Diagnosis344
  - EGR Diagnosis345
  - INT Air Temp SNSR (High) Diagnosis345
  - CAN (EGR 1) Diagnosis347
  - EDU Relay Diagnosis347
- Actuator Tests Performed Using Multi-Use Tester348
- Inspections Based on Diagnosis Codes348
- Inspections Performed at Electronic Control Unit Connectors348
- Multi-Use Tester Service Data348
- Inspection of Electrical Equipment350
- Installed Locations of Parts352
  - Exhaust Gas Recirculation System Electric Circuit Diagram358
  - EGR Valve, EGR Magnetic Valve, EGR Pipe and EGR Cooler360
- Egr Cooler361
- Blowby Gas Return System Removal and Installation363
- Blowby Gas Return System364

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