Part of the Yanmar Repair Manuals.
Yanmar publication 0BJH4-G00101 is the book the dealer technicians worked from, and it reads that way: when a 4JH4-TE loses boost or a 3JH4E cranks without firing, the troubleshooting charts walk the fault back through fuel, air, and compression before you spend money on parts. This PDF service manual covers the 3JH4E, 4JH4E, 4JH4-TE, and 4JH4-HTE marine diesel engines built from 1999 to 2010, 346 pages in English.
Inside are the periodic maintenance schedules, full disassembly and reassembly procedures, injection pump and governor service for both the natural and turbocharged variants, seawater and fresh water cooling systems, the electrical system, and marine gear specifications.
Buy it once and it is yours: keep the file, print the pages you need at the stand, and have the cylinder head torque sequence and bearing inspection procedures in front of you before the engine goes back together.
Complete the set for your 3JH4E, 4JH4E, 4JH4-TE…
Other editions of this manual
What's Inside This Manual
| System | Pages | Key Topics |
|---|---|---|
| History of Revision | 3 | Manual Name, Engine Model, Date of Revision, Reason for Correction, Correction, Corrected by |
| For Safety | 12-17 | Safety Labels, Safety Precautions, Work-Wear (Garments), Tools, Fastener Torque, Electrical |
| General | 18-68 | Exterior Views, Specifications, Fuel Oil, Lubricating Oil and Coolant, Engine Outline, Piping Diagrams |
| Inspection and Adjustment | 69-116 | Periodic Maintenance Schedule |
| Troubleshooting | 117-138 | Preparation Before Troubleshooting, Quick Reference Chart for Troubleshooting, Troubleshooting (Concerning Engine and Fuel Injection Equipment) |
| Disassembly and Reassembly | 139-191 | Disassembly and Reassembly Precautions, Disassembly and Reassembly Tools |
| Inspection and Servicing of Basic Engine Parts | 192-231 | Cylinder Block, Cylinder Head, Piston and Piston Pins, Connecting Rod, Crankshaft and Main Bearing, Camshaft and Tappets, Timing Gear |
| Fuel Injection Equipment | 232-258 | Fuel Injection Pump/Governor for 3JH4E and 4JH4E, Fuel Feed Pump, Fuel Injection Pump/ Governor for 4JH4-TE and 4JH4-HTE, Fuel Injection Nozzle, Fuel Filter |
| Intake and Exhaust System | 259-268 | Intake System, Exhaust System, Turbocharger |
| Lubrication System | 269-277 | Lube Oil Pump, Lube Oil Filter, Lube Oil Cooler, Piston Cooling Oil Nozzle, Rotary Waste Oil Pump (Optional) |
| Coolant System | 278-302 | Seawater Pump, Fresh Water Pump, Heat Exchanger, Pressure Cap and Coolant Recovery Tank, Thermostat |
| Reduction and Reversing Gear | 303-306 | Specifications of 3JH4E Marine Gears, Specifications of 4JH4E and Marine Gears, Specifications of 4JH4-TE and 4JH4-HTE Marine Gears |
| Remote Control System (Optional) | 307-313 | Remote Control System, Remote Control Installation, Remote Control Inspection, Remote Control Adjustment |
| Electrical System | 314-333 | Battery, Starting Motor, Alternator 12V/60A (Optional), Alternator 12V/80A (Standard), Instrument Panel, Warning Devices |
| Service Standards | 334-343 | Engine Tuning, Engine Body, Lubricating Oil System (Trochoid Pump) |
| Tightening Torque for Bolts and Nuts | 344 | Main Bolt and Nut, Standard Bolts and Nuts (Without Lube Oil) |
| Colophon | 345 | First Edition, 3rd Edition, Published by, Copyright |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Impeller durability | Min. 1500 h | p. 281 |
| Thermostat valve opening temperature | 75.0-78.0 deg C | p. 113 |
| Thermostat replacement interval | Every year or 2000 hours of operation | p. 113 |
| Seawater pump impeller durability | Min. 1500 h | p. 281 |
| Seawater pump mechanical seal durability | 3000 h | p. 281 |
