Yanmar 4JH3-DTE - Lubricating Oil Path Diagram; Particulars;Components of Lubricating Oil Pump

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History of Revision3
Contents5
Warning Symbols7
Safety Precautions8
Service Shop8
Work Clothing9
Tools to be Used9
Use Genuine Parts and Lubricants9
Tightening Nuts and Bolts9
Handling the Engine Parts10
Waste Disposal11
Safety Label11
Location of Product Safety Labels12
Principal Particulars 4JH3-TE13
Principal Particulars 4JH3-TCE14
Principal Particulars 4JH3-HTE15
Principal Particulars 4JH3-DTE16
Appearance and Names of Parts17
Cross-Sectional Drawing18
Piping Diagram 4JH3-TE19
Piping Diagram 4JH3-HTE/DTE20
Performance Curves 4JH3-TE21
Performance Curves 4JH3-HTE22
Performance Curves 4JH3-DTE23
Front Power Take-Off 4JH3-TE/HTE/DTE24
Power Takeoff Method25
Selection/Handling of Fuel Oil26
Fuel Piping26
Cooling Water27
Selection of Engine Lube/Marine Gear Oil27
Handling the Lube Oil27
Operating Cautions28
Overhaul Preparations29
Cylinder Head30
Combustion Surface30
Valve Seat30
Valve Stem and Valve Guide32
Valve Sinking32
Replacing the Valve Guide32
Valve Spring33
Replacing the Valve Stem Steal33
Rocker Arm Shaft and Rocker Arm Bushing33
Installing the Cylinder Head34
Check on the Rocker Arm and Valve Stem Cap34
Checking the Push Rod for Damage or Bending34
Adjustment of Valve Clearance34
Piston35
Piston Pin35
Measurement of Piston Ring Thickness36
Ring Shape36
Mesurement of Ring Width36
Cylinder Block37
Measuring End Gap of the Piston Ring37
Replacing the Piston Ring37
Cylinder Bore Diameter and Size Mark38
Honing38
Honing Trace39
Cylinder Overhaul39
Bend and Twist of Connecting Rod40
Thrust Clearance of Connecting Rod40
Check on Crank Pin Metal41
Piston Pin Bushing41
Measuring Oil Clearance41
Measuring the Metal Cap/Piston Pin Bushing Inside Diameter41
Color Check of the Crankshaft42
Assembling Piston and Connecting Rod42
Flywheel Side42
Bend in Crankshaft43
Measuring Crank Pin and Crank Journal43
Thrust Clearance of Crankshaft43
Main Bearing44
Camshaft Thrust Clearance45
Camlobe Height45
Camshaft Bearing Oil Clearance45
Gear Train46
Tappet Working Face46
Measuring Tappet Diameter/Tappet Hole Diameter46
Check on Gears47
Idle Gear47
Backlash47
Lubricating Oil Path Diagram48
Particulars/Components of Lubricating Oil Pump48
Disassembling the Lubricationg Oil Pump49
Check on the Lubricating Oil Pump49
Pressure Regulating Valve and Lubricating Oil Filter49
Checking on Rotor/Rotor Side Clearance49
Lubricating Oil Cooler/Filter50
Piston Cooling Oil Nozzle51
Cooling Water System52
Sea Water Pump Particulars52
Disassembling and Assembling the Sea Water Pump53
Check on the Sea Water Pump53
Servicing Standards for Sea Water Pump54
Particulars of Fresh Water Pump54
Check on the Fresh Water Pump54
Thermostat54
Fresh Water Cooler55
Checking the Fresh Water Path for Water Leakage56
Checking the Pressure Cap56
Fuel Injection Pump57
Fuel Path Diagram58
Structure and Working of Injection Pump59
Plunger59
Governor60
Timer60
Boost Compensator Stopper (4JH3-DTE)61
Adjustment of Fuel Injection Pump 4JH3-TE/HTE62
Adjustment of Fuel Injection Pump 4JH-DTE63
Fuel Filter64
Handling of Fuel System64
Nozzle Specifications65
Nozzle Cross Section65
Adjustment of Fuel Injection Test66
Condition of Spray66
Procedures for Adjusting the Injection Timing67
Installing the Fuel Injection Nozzle67
Wiring Diagram 4JH3-TE/HTE/DTE (New B Type)68
Wiring Diagram 4JH3-TE/HTE/DTE (New C Type)69
Starter Specifications and Service Standards72
Alternator Specifications and Service Standards73
Turbocharger Specification/Components74
Turbocharger Sectional View and Tightening Torque74
Service Interval75
Checking Procedures75
Cautions about Assembly76
Service Standards77
Does Not Start or Difficult to Start78
Unsmooth Running79
Sudden Engine Stop80
Poor Exhaust Gas Color81
Insufficient Output82
Ununiformity Output for each Cylinder83
Knocking84
Trouble Related to Turbocharger85
Other Malfunctions86
Periodic Checking List87
Tool88
Measuring Instrument89
Engine Adjusting Standards91
Cylinder Head Service Standards92
Intake/Exhaust Valve and Valve Guide Service Standards92
Valve Actuation Device Service Standards93
Piston Service Standards93
Piston Ring Service Standards94
Cylinder Block Service Standards94
Piston Pin Service Standards95
Crank Pin and Crank Journal Service Standards95
Thrust Metal Service Standards95
Camshaft Service Standards96
Idler Gear Shaft and Bushing Service Standards96
Backlash between Gears Service Standards96
Lubricating Oil/Sea Water Pump Service Standards97
Nut and Bolt Tightening Torque Service Standards97
Instrument Panel (New B/C Type)99

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