Yanmar 4JH3 -TE/TCE/HTE/DTE Service manual/Руководство по техническому обслуживанию Yanmar 4JH3 -TE/TCE/HTE/DTE

Издание на английском языке
This book describes the procedures for servicing the 4JH3 series marine diesel engine.
Use this manual to help you service the engine accurately, quickly and safely. The descriptions in this manual are for the standard engine. Therefore, the specifications or components of your engine may vary, depending on the exact engine installed in the ship.
For’more specific details, also refer to the service manual for the ship.
Note that modifications may be made in the specifications or parts in order to improve the engine.

Contents
1. To Perform Service Safely
1.1 Warning Symbols
1.2 Safety Precautions
1.3 Location of Product Safety Labels
2. General Description
2.1 Principal Particulars
2.2 Appearance and Names of Parts
2.3 Cross-sectional Drawing
2.4 Piping Diagram
2.5 Performance Curves
2.6 Front Power Take-off
2.7 Fuel Oil
2.8 Lube Oil
2.9 Cooling Water
3. Overhaul
3.1 Operating Cautions
3.2 Overhaul Preparations
3.3 Overhaul
3.3.1 Cylinder Head
(1) Combustion surface
(2) Valve seat
(3) Suction/exhaust valve and valve guide
(4) Valve spring
(5) Valve arm and push rod
(6) Installing the cylinder head
3.3.2 Piston
(1) Piston
(2) Piston pin
(3) Piston ring
3.3.3 Cylinder Block
3.3.4 Connecting Rod
(1) Connecting rod
(2) Crank pin metal
(3) Piston pin bushing
(4) Assembling piston and connecting rod
3.3.5 Crankshaft and Main Bearing
(1) Crankshaft
(2) Main bearing
3.3.6 Camshaft and Tappet
(1) Camshaft
(2) Tappet
3.3.7 Gear Train
(1) Check on gears
(2) Idler gear
3.3.8 Lubrication System
(1) Lubricating oil path diagram
(2) Lubricating oil pump
(3) Pressure regulating valve and lubricating oil filter
(4) Lubricating oil cooler
(5) Piston cooling oil nozzle
3.3.9 Cooling Water System
(1) Cooling water system
(2) Sea water pump
(3) Servicing standards for sea water pump
(4) Fresh water pump and thermostat
(5) Fresh water cooler.
3.3.10 Fuel System
(1) Fuel Injection Pump
(2) Fuel Injection Nozzle
(3) Procedures for adjusting the injection timing.
3.3.11 Electrical Equipment
(1) Wiring Diagram
(2) Starter
(3) Alternator
3.3.12 Turbocharger
(1) Particulars and structure
(2) Checking and servicing procedures
4. Troubleshooting
4.1 Does not Start or Difficult to Start
4.2 Unsmooth Revolution.
4.3 Sudden Engine Stop
4.4 Poor Exhaust Gas Color
4.5 Insufficient Output
4.6 Uneven Cylinder Outputs
4.7 Knocking
4.8 Trouble with Breakdown
4.9 Other Malfunctions
5. Periodic Checking List
6. Tool and Measuring Instrument
(1) Tool
(2) Measuring instrument
7. Service Specifications
7.1 Engine adjusting standards
7.2 Service standards
8. Instrument Panel (Option)