Name: Mitsubishi S4Q2
Brand: Mitsubishi
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Service Manual Mitsubishi SQ-Series diesel engines

Version 08/2004

TIMING GEARS, CAMSHAFT AND OIL

PAN

ENGLISH

ENGINE MAIN PARTS

Figure 93 Crankshaft rotation stopper

CAUTION

To ensure safety, make sure the bar and bolt used to

prevent the crankshaft from turning have sufficient

strength.

Default Chapter2
- How to Use this Manual2
- Table of Contents3
General8
- Engine Model and Application Codes9
- Engine Serial Number Location9
1 Outline8
- External View8
2 Specifications10
General Instructions11
3 Determination of Overhaul Timing12
4 Testing the Compression Pressure13
5 Tips on Disassembly and Reassembly15
- Disassembly15
- Reassembly15
6 Precautions for Disassembly and Reassembly16
- Oil Seals16
- O-Rings16
- Bearings17
- Lock Plates17
- Split Pins and Spring Pins17
Engine Main Parts19
7 Cylinder Heads and Valve Mechanism20
- Disassembly20
- Removing Cylinder Head21
- Inspection24
- Reassembly32
- Valve Clearance Adjustment36
8 Flywheel38
- Disassembly38
- Inspection40
- Reassembly41
9 Timing Gears, Camshaft and Oil Pan43
- Disassembly43
- Inspection48
- Crankshaft Pulley49
- Reassembly53
10 Pistons, Connecting Rods, Crankshaft and Crankcase58
- Disassembly58
- Inspection64
- Connecting Rods68
- Reassembly76
Inlet and Exhaust System85
11 Description86
12 Disassembly, Inspection and Reassembly87
Cooling System89
- Cooling System 13 Description90
13 Description90
14 Water Pump, Fan91
- Inspection91
15 Thermostat92
- Inspection92
Fuel System93
16 Description94
17 Fuel System Bleeding95
18 Disassembly96
19 Fuel Injection Timing Check98
20 Fuel Filter (Paper-Element Cartridge Type)100
- Disassembly and Inspection100
21 Fuel Injection Nozzles101
- Disassembly101
- Testing102
- Reassembly104
Lubrication System105
22 Description106
23 Oil Pump107
- Disassembly107
- Inspection107
- Reassembly108
24 Oil Filter109
- Inspection109
25 Pressure Relief Valve110
- Inspection110
Electrical System General112
- Wiring Diagrams112
27 Starter114
- Inspection before Disassembly (Inspection of Assembly)114
- Removal116
- Disassembly117
- Inspection118
- Reassembly121
- Inspection and Testing after Reassembly122
28 Alternator124
- On-Vehicle Inspection124
- Removal126
- Disassembly127
- Inspection129
- Assembly132
- Installation132
29 ETR Type Stop Solenoid134
- General134
- Solenoid Specification135
- Inspection136
- Connecting Rod Adjustment136
30 Glow Plugs137
- Removal137
- Inspection137
- Installation137
Testing and Adjusting139
31 Bench Test140
- Starting up140
- Inspection after Starting up140
- Bench Testing (Dynamometer) Conditions141
- Inspection and Adjustment after Bench Testing141
32 Idling Speed and Maximum Speed Setting Inspection and Adjustment142
33 Performance Test144
- Engine Equipment Condition144
- Tests and Their Purposes144
- Other Inspections144
- Adjustment Engine Output144
Troubleshooting149
- ENGLISH Service Manual Mitsubishi SQ-Series Diesel Engines156
34 Causes of Engine Problems and Remedies149
Maintenance Standards159
35 Maintenance Standards Table160
36 Tightening Torques166
- Important Bolts and Nuts166
- Standard Bolts167
- Standard Studs167
- Standard Plugs167
37 Thread Sealants168
38 Maintenance Schedule169
Special Tools171
39 Special Tool List172

Mitsubishi S4Q2 User Manual

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Brand	Mitsubishi
Model	S4Q2
Category	Engine
Language	English