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Mitsubishi Manuals
Engine
4DQ50
Service manual
Mitsubishi 4DQ50 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Chapter 1 Operation and Handling
Newengine
Checkup and Preparations Prior to Starting
Engine Starting
After the Engine's Start
Engine Operation
During Operation
Stopping
Handling in Cold Weather
Starting in Cold Weather
General Instructions
Handling in the Hot Season
Chapter 2 Fuel, Oil and Cooling Water
Fuel
Engine Oil
Quality Required of Engine Oil
Recommendable Classes of Engine Oil
Time to Change Engine Oil
Diaphragm Oil
Cooling Water
Required Quality
Handling of Cooling System
Chapter 3 Regular Servicing
Lubrication
Air System
Air Cleaner (Oil Bath Type)
Air Cleaner (Filter Paper Type)
Valve Clearances
Compression Pressure
Oil System
Oil Pan
Oil Filter
Differential Bypass Valve
Oil Pressure
Fuel System
Fuel Filter
Bleeding (or Priming)
Checkup of Nozzles
Fuel Injection Pump
Fuel Injection Timing
Governor (Pneumatic)
4·7 Governor (Mechanical)
GOVERNOR (Model Rsv,Bosch Type)
Automatic Timer
Measurement of Engine Speed
Cooling System
Cooling Water and Radiator
Thermostat
Tension of Fan Belt
Electric System
Generator
Generator
6·2-1 D.C. Generator Relay
6·2·2 A.C. Generatorrelay
Starter
Battery
Re·screwing of Main Bolts
Cylinder Head Clamp Bolts
Main Bearing Caps and Connecting Rod Caps
Others
Chapter 4 Trouble-Shooting
Trouble Shooting Chart
Trouble Shooting Chart (Appendix)
Chapter 5 Overhauling Instructions
General Instructions
Cylinder Head and Valves
2·' Reface of Valve Seats
2·2 How to Replace Valve Guides
Combustion Chamber Jet and Director
Rocker Shaft Brackets
Pistons and Connecting Rods
3·' How to Remove and Install Piston and Connecting Rod Ass'y
3·2 How to Ceuple Piston with Connecting Rod
How to Remove and Install Piston Pins
Cylinders
Oversizes
Cylinder Liners
Bearing Metals
General Cautions
How to Assemble Main Bearing Metals
Undersizes
Timing Gear
Timing Gear Train
6·2 Valve Timing
Oil Seals
Mountings
Oil Pan Installing
Oil Pump
Water Pump
Bolt Screwing
Model 40Q50 Engine Service Standard
Iiapter 6 TOOLS
Common Tools
Special Tools
Apter 7 Main Specifications and Performance
Main Specifications of Mitsubishi Diesel Engine Model 40050
Performance of Mitsubishi Diesel Engine Model 40050
40050A (for Motor Vehicles) Performance Curve
40050C (for Construction Machine) Performance Curve
40050P (for General Power) Performance Curve
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SERVICE MANUAL
SERVICE MANUAL
MITSUBISHI
DIESEL ENGINE
4DQ50
MITSUBISHI HEAVY INDUSTRIES, LTD.
No. 5-1, Marunouchi, 2-chome Chiyoda-ku, Tokyo Japan
Phone: Tokyo (03) 212-3111 Telex: J22282, J22443 HISHIJU
99609-50000
DEC 1985
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Table of Contents
Troubleshooting
Trouble shooting chart
68
Trouble shooting chart (Appendix)
72
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Summary of Contents for Mitsubishi 4DQ50
Page 1
SERVICE MANUAL SERVICE MANUAL MITSUBISHI DIESEL ENGINE 4DQ50 99609-50000 DEC 1985 MITSUBISHI HEAVY INDUSTRIES, LTD. No. 5-1, Marunouchi, 2-chome Chiyoda-ku, Tokyo Japan Phone: Tokyo (03) 212-3111 Telex: J22282, J22443 HISHIJU...
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