Mitsubishi S4Q2 User Manual

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Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004
ENGLISH
TABLE OF CONTENTS
20.1 Disassembly and Inspection ................................................................................................ 100
21 FUEL INJECTION NOZZLES........................................................................................................ 101
21.1 Disassembly......................................................................................................................... 101
21.2 Testing ................................................................................................................................. 102
21.3 Reassembly ......................................................................................................................... 104
LUBRICATION SYSTEM
22 DESCRIPTION.............................................................................................................................. 106
23 OIL PUMP ..................................................................................................................................... 107
23.1 Disassembly......................................................................................................................... 107
23.2 Inspection............................................................................................................................. 107
23.3 Reassembly ......................................................................................................................... 108
24 OIL FILTER ................................................................................................................................... 109
24.1 Inspection............................................................................................................................. 109
25 PRESSURE RELIEF VALVE ........................................................................................................ 110
25.1 Inspection............................................................................................................................. 110
ELECTRICAL SYSTEM
26 GENERAL ..................................................................................................................................... 112
26.1 Wiring diagrams ................................................................................................................... 112
27 STARTER...................................................................................................................................... 114
27.1 Inspection before disassembly (inspection of assembly)..................................................... 114
27.2 Removal............................................................................................................................... 116
27.3 Disassembly......................................................................................................................... 117
27.4 Inspection............................................................................................................................. 118
27.5 Reassembly ......................................................................................................................... 121
27.6 Inspection and testing after reassembly .............................................................................. 122
28 ALTERNATOR .............................................................................................................................. 124
28.1 On-vehicle inspection........................................................................................................... 124
28.2 Removal............................................................................................................................... 126
28.3 Disassembly......................................................................................................................... 127
28.4 Inspection............................................................................................................................. 129
28.5 Assembly ............................................................................................................................. 132
28.6 Installation............................................................................................................................ 132
29 ETR type stop solenoid ................................................................................................................. 134
29.1 General ................................................................................................................................ 134
29.2 Solenoid specification .......................................................................................................... 135
29.3 Inspection............................................................................................................................. 136
29.4 Connecting rod adjustment .................................................................................................. 136
30 GLOW PLUGS .............................................................................................................................. 137
30.1 Removal............................................................................................................................... 137
30.2 Inspection............................................................................................................................. 137
30.3 Installation............................................................................................................................ 137
TESTING AND ADJUSTING
31 BENCH TEST................................................................................................................................ 140
31.1 Starting Up ........................................................................................................................... 140
31.2 Inspection after Starting Up ................................................................................................. 140
31.3 Bench Testing (Dynamometer) Conditions .......................................................................... 141
31.4 Inspection and Adjustment after Bench Testing .................................................................. 141
32 IDLING SPEED AND MAXIMUM SPEED SETTING INSPECTION AND ADJUSTMENT............ 142
33 PERFORMANCE TEST ................................................................................................................ 144
33.1 Engine Equipment Condition ............................................................................................... 144
33.2 Tests and Their Purposes.................................................................................................... 144
33.3 Other Inspections................................................................................................................. 144
33.4 Adjustment Engine Output ................................................................................................... 144
TROUBLESHOOTING
34 CAUSES OF ENGINE PROBLEMS AND REMEDIES ................................................................. 149

Mitsubishi S4Q2 Specifications

General

Brand	Mitsubishi
Model	S4Q2
Category	Engine
Language	English