Yanmar 2QM20(H) & 3QM30(H) Marine Diesel Engine Repair Service Manual

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This Workshop Service Repair manual PDF download for the 2QM20(H) & 3QM30(H) Yanmar Marine Diesel Engine has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to fully at every opportunity.


APPLICABLE MODELS :

Yanmar Marine Diesel Engine

2QM20[2QM20B]
2QM20H
2QM20Y
2QM20F

3QM30
3QM30H
3QM30Y
3QM30F


TABLE OF CONTENTS :

CHAPTER 1 GENERAL
CHAPTER 2 BASIC ENGINE
CHAPTER 3 FUEL SYSTEM
CHAPTER 4 GOVERNOR
CHAPTER 5 INTAKE AND EXHAUST SYSTEM
CHAPTER 6 LUBRICATION SYSTEM
CHAPTER 7 COOLING SYSTEM
CHAPTER 8 CHAIN-OVERDRIVE HAND-OPERATED SYSTEM
CHAPTER 9 REDUCTION AND REVERSING GEAR
CHAPTER 10 REMOTE CONTROL SYSTEM
CHAPTER 11 ELECTRICAL SYSTEM
CHAPTER 12 INSTALLATION AND FITTING
CHAPTER 13 OPERATING INSTRUCTIONS
CHAPTER 14 DISASSEMBLY AND REASSEMBLY
CHAPTER 15 INSPECTION AND SERVICING


MANUAL SPECIFICATION :

File Format : PDF
Language : English
Printable : Yes
Searchable : Yes
Bookmarked : Yes
Part Number : 0000A0A100 / OOOOAOA100
Total Pages : 349


This Service / Repair / Workshop Manual PDF Download contains specs, diagrams, actual real photo illustrations, and schemes. In addition to space savings, nice thing about having completly searcheble PDF files instead of a hard-printed manual is that you can use the Search feature in your PDF reader software (Adobe Acrobat) to find just what your looking for and just print out the exact pages you need or all manual easily. This is the same manual your local dealer will use when doing a repair. This is a must for the Do-It-Yourselfer! Saving Yourself $$$$$$ In Service Repair And Maintenance Costs !!!!

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COVER
FOREWORD
INDEX
CHAPTER 1 GENERAL
1.Exterior Views
2.Specifications
3.Principal Construction
4.Performance Curves
5.Features
6.Engine Cross-Section
7.Dimensions
8.System Diagrams
9.Accessories
10.Recommended Remote Control Cable
CHAPTER 2 BASIC ENGINE
1.Cylinder Block
2.Cylinder Liner
3.Cylinder Head
4.Piston
5.Connecting Rod
6.Crankshaft
7.Camshaft
8.Timing Gear
CHAPTER 3 FUEL SYSTEM
1.Construction
2.Injection Pump
3.Injection Valve
4.Fuel Filter
5.Fuel Feed Pump
6.Fuel Tank (Option)
CHAPTER 4 GOVERNOR
1.Governor
2.Injection Limiter
3.No-Load Maximum Speed Limiter
4.Idling Adjuster
CHAPTER 5 INTAKE AND EXHAUST SYSTEM
1.Intake and Exhaust System
2.Intake Silencer
3.Exhaust System
4.Breather Pipe
5.Intake Manifold [3QM30(H)]
CHAPTER 6 LUBRICATION SYSTEM
1.Lubrication System
2.Oil Pump
3.Oil Filter
4.Oil Pressure Regulator Valve
5.Oil Pressure Measurement
CHAPTER 7 COOLING SYSTEM
A.Sea water cooling [For model 2QM20(H), 3QM30(H)]
1.Cooling System
2.Water Pump and Bilge Pump
3.Thermostat
4.Anticorrosion Zinc
5.Kingston Cock
6.Bilge Strainer
B.Fresh water cooling [For model 2QM20Y(F), 3QM30Y(F)]
1.Cooling System
2.Fresh Water Pump
3.Fresh Water Tank
4.Filler Cap and Subtank (Option)
5.Thermostat
6.Anticorrosion Zinc
7.Precautions
CHAPTER 8 CHAIN-OVERDRIVE HAND-OPERATED SYSTEM
1.Chain-Overdrive Hand-Operated System
CHAPTER 9 REDUCTION AND REVERSING GEAR
[A]For model 2QM20, 3QM30
1.Construction
2.Installation and Operation
3.Handling the Reduction and Reversing Gears
4.Inspection and Servicing
5.Disassembly
6.Reassembly
[B]For model 2QM20H
1.Construction
2.Installation
3.Operation and Maintenance
4.Inspection and Servicing
5.Disassembly
6.Reassembly
[C]For model 3QM30H
1.Construction
2.Installation
3.Oparation and Maintenance
4.Inspection and Servicing
5.Disassembly
6.Reassembly
CHAPTER 10 REMOTE CONTROL SYSTEM
1.Construction
2.Clutch and Speed Regulator Remote Control
3.Decompression Remote Control
4.Engine Stop Remote Control
CHAPTER 11 ELECTRICAL SYSTEM
1.Composition
2.Battery
3.Starter Motor
4.Alternator
5.Alarm Circuit
CHAPTER 12 INSTALLATION AND FITTING
1.Propeller Selection
2.Engine Installation
3.Stern Equipment
4.Interior Piping and Wiring
5.Front Power Take-Off
CHAPTER 13 OPERATING INSTRUCTIONS
1.Fuel Oil and Lubricating Oil
2.Engine Operating Instructions
3.Troubleshooting and Repair
CHAPTER 14 DISASSEMBLY AND REASSEMBLY
1.Disassembly and Reassembly Precautions
2.Disassembly and Reassembly Tools
3.Other
4.Disassembly
5.Reassembly
6.Tightening Torque
7.Packing Supplement and Adhesives
CHAPTER 15 INSPECTION AND SERVICING
1.Periodic Inspection and Servicing
BACK COVER

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