Yanmar Marine Diesel Engine 3JH3(B)(C)E, 4JH3(B)(C)E Service Manual PDF

Service manual has been complied for engineers engaged in sales, service, inspection and maintanance. Accordingly, descriptions of the construction and functions of the engine are emphasized in this manual while items which should be common knowledge are omitted.
One characteristic of a marine diesel engine is that its performance in a vessel is governed by the applicability of the vessel's hull construction and its steering system. Engine installation, fitting out and propeller selection have a substancial effect on the performance of the engine and the vessel. Moreover, when the engine runs unevenly or when trouble occurs, it is essential to check a wide range of operating conditions - such as installation to the hull and suitability of the ship's piping and propeller - and not just the engine itself. To get maximum performance from this engine, you should completely understand its functions, construction and capabilities, as well as proper use and servicing.
Use this manual as a handy reference in daily inspection and maintanance, and as a text for engineering guidance. Model 4JH3E has been used for the illustrations in this service manual, but they apply to models 3JH3E, 3JH3BE, 3JH3CE, 4JH3BE and 4JH3CE as well.
Service manual comes in PDF and includes 283 pages, which are printable. We recommend to use Adobe PDF Reader, to be sure all images / graphics will display correctly.

Models:
3JH3(B)(C)E,
4JH3(B)(C)E.

CONTENTS:

• CHAPTER 1 GENERAL
  • 1. Exterior Views
  • 2. Specifications
  • 3. Engine Outling
  • 4. Piping Diagrams
• CHAPTER 2 INSPECTION AND SERVICING OF BASIC ENGINE PARTS
  • 1. Cylinder Block
  • 2. Cylinder Head
  • 3. Piston and Piston Pins
  • 4. Connecting Rod
  • 5. Crankshaft and Main Bearings
  • 6. Camshaft and Tappets
  • 7. Timing Gear
  • 8. Flywheel and Housing
• CHAPTER 3 FUEL INJECTION EQUIPMENT
  • 1. Fuel Injection Pump Service Data
  • 2. Governor
  • 3. Disassembly, Reassembly and Inspection of Fuel injection pump
  • 4. Adjustment of Fuel Injection Pump and Governor
  • 5. Fuel Feed Pump
  • 6. Fuel injection Nozzle
  • 7. Troubleshooting
  • 8. Tools
  • 9. Fuel Filter
  • 10. Fuel Tank
  • 11. Troubleshooting
• CHAPTER 4 INTAKE AND EXHAUST SYSTEM
  • 1. Intake System
  • 2. Exhaust System
• CHAPTER 5 LUBRICATION SYSTEM
  • 1. Lubrication System
  • 2. Lube Oil Pump
  • 3. Lube Oil Filter
  • 4. Lube Oil Cooler
  • 5. Rotary Waste Oil Pump (Optional)
• CHAPTER 6 COOLING WATER SYSTEM
  • 1. Cooling Water System
  • 2. Sea Water Pump
  • 3. Fresh Water Pump
  • 4. Heat Exchanrger
  • 5. Pressure Cap and Sub Tank
  • 6. Thermostat
  • 7. Bilge pump and Bilge Strainer (Optional)
• CHAPTER 7 REDUCTION AND REVERSING GEAR
  • Marine Gear Models [KM3A]
  • Marine Gear Models [KM3P]
• CHAPTER 8 REMOTE CONTROL (OPTIONAL)
  • 1. Remote Control System
  • 2. Remote Control Installation
  • 3. Remote Control Inspection
  • 4. Remote Control Adjustment
• CHAPTER 9 ELECTRICAL SYSTEM
  • 1. Electrical System
  • 2. Battery
  • 3. Starter Motor
  • 4. Alternator Standard, 12V/55A
  • 5. Alternator 12V/80A (OPTIONAL)
  • 6. Instrument Panel
  • 7. Warning Devices
  • 8. Air Heater (Optional)
  • 9. Electric type Engine Stopping Device (Optional)
  • 10. Tachometer
• CHAPTER 10 DISASSEMBLY AND REASSEMBLY
  • 1. Disassembly and Reassembly Precautions
  • 2. Disassembly and Reassembly Tools
  • 3. Disassembly and Reassembly
  • 4. Table of Standard Measurements for Maintenance
  • 5. Tightening torque
  • 6. Test Running
• CHAPTER 11 TROUBLESHOOTING
  • 1. Troubleshooting