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Yanmar 4JH-T(B)E User Manual

Yanmar 4JH-T(B)E
316 pages
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Yanmar 4JH-T(B)E Specifications

General IconGeneral
Engine Model4JH-T(B)E
Cylinders4
Fuel TypeDiesel
Combustion SystemDirect Injection
Starting SystemElectric starter
Power Output55 kW (75 hp) @ 3300 rpm
Cooling SystemWater-cooled
Lubrication SystemForced Lubrication
RotationCounterclockwise, viewed from flywheel side
Engine Type4-stroke, water-cooled, turbocharged/intercooled diesel

Summary

Chapter 1: General

2 Specifications

Provides detailed technical specifications for various 4JH engine models.

Chapter 2: Inspection and Servicing of Basic Engine Parts

1 Cylinder Block

Details inspection and servicing procedures for the engine's cylinder block.

4 Piston and Piston Pins

Explains inspection, measurement, and replacement of pistons and pins.

Chapter 3: Fuel Injection Equipment

1 Fuel Supply System

Describes the function and components of the engine's fuel supply system.

2 Disassembly, Reassembly and Inspection of Governor

Provides step-by-step procedures for governor disassembly, reassembly, and inspection.

3 Disassembly, Reassembly and Inspection of Fuel Injection Pump

Details the process for disassembling, reassembling, and inspecting the fuel injection pump.

4 Adjustment of Fuel Injection Pump and Governor

Covers the procedures for adjusting the fuel injection pump and governor settings.

7 Fuel Injection Nozzle

Covers specifications, disassembly, inspection, and adjustment of fuel injection nozzles.

8 Troubleshooting

Lists common faults, causes, and remedies for the fuel injection system.

Chapter 4: Intake and Exhaust System

4 Turbocharger

Explains turbocharger specifications, construction, function, and maintenance.

Chapter 5: Lubrication System

2 Lube Oil Pump

Covers the construction, specifications, disassembly, and inspection of the lube oil pump.

Chapter 6: Cooling Water System

2 Sea Water Pump

Covers construction, specifications, disassembly, and inspection of the sea water pump.

3 Fresh Water Pump

Details construction, specifications, and inspection of the fresh water pump.

Chapter 7a: Reduction and Reversing Gear (Marine gear model KBW 20 and 21)

4 Inspection and Servicing

Provides detailed inspection and servicing procedures for gear components.

6 Reassembly

Guides through the reassembly process of the reduction and reversing gear.

Chapter 7b: Reduction and Reversing Gear (Marine gear model KM4A, Angle drive)

2 Shifting Device

Explains the construction and operation of the KM4A shifting mechanism.

3 Inspection and Servicing

Covers inspection and servicing procedures for KM4A gear components.

5 Disassembly

Provides step-by-step instructions for disassembling the KM4A marine gear.

7 Reassembly

Guides through the reassembly process of the KM4A marine gear.

Chapter 8: Remote Control (Optional)

Chapter 9: Electrical System

3 Starter Motor

Details starter motor specifications, construction, operation, and troubleshooting.

4 Alternator 12V/55A

Outlines alternator specifications, construction, function, and troubleshooting.

Chapter 10: Disassembly and Reassembly

1 Disassembly and Reassembly Precautions

Provides essential precautions for engine disassembly and reassembly.

3 Disassembly and Reassembly

Detailed procedures for disassembling and reassembling engine components.

5 Test Running

Outlines pre-run checks, procedures, and precautions for testing the engine after assembly.

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