Daewoo D70S-2 User Manual

Service Manual
Diesel Engine
5.8 Liter (DB58)
D50S-2, D60S-2, D70S-2
SB2148E00
Oct. 1998

Daewoo D70S-2 Specifications

General

Brand	Daewoo
Model	D70S-2
Category	Trucks
Language	English

Summary

Important Safety Information

1. General Information

1.1. General Repair Instructions

Safety and procedural guidelines for general repair tasks, including vehicle preparation and tool usage.

1.3. Torque Specifications

Table of standard torque values for various bolt types and sizes used in engine assembly and maintenance.

1.4. Major Parts Fixing Bolts

1.5. Maintenance

Procedures for routine maintenance and component replacement tasks.

1.5.1. Replacement of Oil Filter

Step-by-step guide for removing and installing a new engine oil filter.

1.5.2. Replacement of Fuel Filter

Instructions for removing and installing a new fuel filter cartridge.

1.5.4. Injection Nozzle

1.5.9. Valve Clearance and Adjustment

Procedures for measuring and adjusting engine valve clearances.

1.5.10. Injection Timing

Method for checking and adjusting engine injection timing for optimal performance.

1.5.11. Compression Pressure Measurement

Procedure for measuring engine compression pressure to assess cylinder health.

2. Engine Disassembly and Assembly

2.2. Disassembly

Procedures for dismantling various engine components.

2.2.1. External Parts

Steps for disassembling external engine components.

2.2.2. External Parts Disassembly Steps

Detailed steps for disassembling various external engine parts.

2.2.3. Major Structured Parts I

Details on disassembling major engine structural components.

2.2.4. Major Structured Parts II

Further details on disassembling significant engine structural parts.

2.2.5. Rocker Arm, and Rocker Arm Shaft Disassembly Steps

2.2.6. Cylinder Head Disassembly Steps

2.2.7. Piston and Connecting Rod Disassembly Steps

2.3. Inspection and Repair

Procedures for inspecting and repairing engine components.

2.3.1. Cylinder Head

2.3.2. Valve Stem and Valve Guide Clearance

2.3.3. Valve Spring

2.3.4. Tappet

2.3.6. Rocker Arm Correction

2.3.7. Idle Gear and Idle Gear Shaft

2.3.8. Cam Shaft

2.3.9. Cylinder Block and Liner

2.3.10. Piston

2.3.11. Connecting Rod

2.3.12. Crankshaft

Inspection of crankshaft and measurement of bearing clearances.

5. Fuel System

5.2. Fuel Filter

5.3. Injection Nozzle

5.4. Injection Pump

Calibration data and adjustment procedures for the injection pump.

5.4.1. Adjustment of Injection quantity

Guidelines for adjusting the injection pump's fuel delivery quantity.

5.4.2. Injection Pump Disassembly

5.4.3. Governor Disassembly

6. Cause of Trouble, Diagnosis and Troubleshooting

6.1. Starting Trouble

Common starting problems, their causes, and remedies.

6.2. Abnormal of Operation

Diagnosis and solutions for abnormal engine operation issues.

6.3. Shortage of Engine out put

Identifying causes and fixes for reduced engine power output.

6.4. Noise of Engine

6.5. Fuel consumption excessive

6.6. Excessive oil consumption

6.7. Exhaust Excessive Smoke