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Mitsubishi Heavy Industries Manuals
Engine
4DQ5
Service manual
Mitsubishi Heavy Industries 4DQ5 Service Manual
Diesel
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Index
General
Major Component Parts
Left-Hand Side View
Right-Hand Side View
Longitudinal Sectional View
Transverse Sectional View
Major Data and Specifications
Disassembly
Inspection and Repair
Precombustion Chamber Jet Replacement
Valve Guides and Valve Seats
Valve Refacer
Valve Seat Installation
Valve Springs
Exhaust Manifold
Cylinder Sleeves
Positions for Checking Sleeve Bore Diameter
Pistons and Piston Rings
Piston Pins, Piston Pin Bosses and Piston Pin Bushings
Connecting Rod Alignment and Bearings
Crankcase
Crankshaft
Miking Crankshaft Crankpins
Grinding the Crankshaft
Checking Crankshaft End Play
Journal Width for Thrust Bearing
Checking Crankshaft for Runout
Measuring Main Bearing ID
Positions for Miking Main Bearing
Camshaft
Checking Camshaft Runout
Miking Camshaft Journals
Miking Camshaft Hole ID
Tappets and Tappet Holes
Checking Flywheel Friction Surface for Warpage
Checking Flywheel Friction Surface for Face Runout
Timing Gear Case and Oil Seal
Timing Gears
Checking Idler End Play
Reassembly
Piston and Connecting Rod Assembly
Piston Rings Installed
Oil Control Ring and Expander Installed
Driving in Camshaft Bushing
Precombustion-Chamber Side
Timing Gear Match Marks Meeting each Other
Valve Timing Diagram
Cylinder Head Assembly
Lubricating System
Lubrication Oil Circuit
Lube Oil Circulation
Oil Pump
Running Clearance between Outer Rotor and Inner Rotor
Sliding Clearance between Rotors and Cover
Radial Clearance between Outer Rotor and Pump Body
Rotor Shaft Diameter
Fitting Cover to Case by Matching Marks
Oil Filter
Cooling System
Direction of Coolant Flow
Coolant Circuit
Thermostat
Water Pump
Fuel System
Fuel Circuit
Priming the Fuel System
Adjusting the Injection Timing
The Engine with RUV Governor
A Timing Mark on Crankshaft Pulley (TDC)
The Engine with RSV Governor
Inspecting Fuel Injection Timing
Adjusting Fuel Injection Timing
Fuel Filter
Injection Nozzles
Needle Valve and Nozzle Body
Nozzle Holder and Distance Piece
Pressure Spring and Pressure Pin
Leak-Off Pipe Packing
Testing and Adjustment
Injection Pressure
Spray Pattern
Possible Patterns of Spray
Initial Throttled Spray
Terminating Main Spray
Seating Tightness
Fuel Feed Pump
Check Valve
Tappet Wear
Pump Housing Damage
Priming Pump Wear
Suction Performance
Delivery Pressure
Capacity Test
Air-Tightness
Fuel Injection Pump
Governor
Timing Mark on Injection Pump
Electrical System
Wiring Diagram
Starter
Reduction Gear Train and Overrunning Clutch
Overrunning Clutch Operation
Pinion Meshed in Flywheel
Starter Operation
Tabulated Data of Alternator
Construction of Alternator
Alternator Operation
Starter Switch in M Position
Starter Switch in S Position and Starter Operates
Engine Starts and Alternator Charges Battery
Alternator Charges Battery Excessively
Starter Removal and Installation
Starter Disassembly and Reassembly
Alternator Removal and Installation
Alternator Disassembly and Reassembly
Preheating System
Removal and Installation of Glow Plugs
Inspection and Adjustment
No-Load Test Circuit
Starter Troubleshooting Guide
Inspection after Disassembly
Brushes and Brush Springs
Pinion Gap Adjustment
No-Load Test
Regulator Voltage Test
Alternator Inspection after Disassembly
Checking Diodes
Checking Field Coil
Inspection of Brushes and Commutator
Checking Mica Insulation
Alternator and Regulator Inspection before Disassembly
Output Test on a Test Bench
Battery
Glow Plugs
Checking Armature
Checking Electrolyte Specific Gravity
Bench Test
Visual Inspection
Perfonnance Tests
Maintenance Standards
Sealant Application Data
Tightening Torque
General Bolts and Nuts
Special Service Tools
Troubleshooting
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General
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Major Data and Specifications
3
Tightening Torque
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SERVICE MANUAL
MITSUBISHI
DIESEL ENGINE
4
5
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Troubleshooting
Starter troubleshooting guide
86
Troubleshooting
114
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