Daewoo DB58 User Manual

65.99892-8026A Shop Manual
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Shop Manual
65.99892-8026A
DB58, DB58T &
DB58TI DIESEL
ENGINE

Daewoo DB58 Specifications

General

Brand	Daewoo
Model	DB58
Category	Engine
Language	English

Summary

PREFACE

1. GENERAL

1.1. General Repair Instructions

General guidelines for safe and proper engine maintenance procedures.

1.2. Engine Specifications

Detailed technical specifications for DB58, DB58T, and DB58TI diesel engines.

1.3. Torque Specifications

Torque values for standard bolts used in engine assembly and repair.

1.4. Main Part Fixing Nuts And Bolts

Specific torque values for critical engine components like cylinder head and block.

1.5. Maintenance Procedures

Procedures for routine maintenance tasks and component replacement.

1.5.1. Oil Filter Replacement

Step-by-step guide for replacing the engine's oil filter.

1.5.2. Fuel Filter Replacement

Instructions for replacing the fuel filter.

1.5.3. Injection Nozzle Service

Procedures for inspecting and adjusting diesel injection nozzles.

1.5.9. Valve Clearance and Adjustment

Steps for measuring and adjusting valve clearances.

1.5.10. Injection Timing

Procedures for checking and adjusting the engine's injection timing.

1.5.11. Compression Pressure Measurement

Method for measuring engine compression pressure.

1.6. Engine Repair Parts

Illustrated list of standard engine repair parts.

2. ENGINE DISASSEMBLY AND ASSEMBLY

2.1. Engine External Parts Overview

Diagrams showing the external parts of DB58, DB58T, and DB58TI engines.

2.2. Disassembly Procedures

Detailed steps for disassembling engine components.

2.2.1. External Parts Disassembly

Specific disassembly steps for external engine parts.

2.2.3. Main Structured Parts

Exploded views and part identification for major engine structures.

2.2.6. Cylinder Head Disassembly

Detailed steps for disassembling the cylinder head assembly.

2.2.7. Piston and Connecting Rod Disassembly

Procedures for disassembling the piston and connecting rod assembly.

2.3. Inspection and Repair

Procedures for inspecting and repairing engine components.

2.3.1. Cylinder Head Inspection and Repair

Inspection and repair of cylinder head flatness, height, and water jacket.

2.3.2. Valve Stem and Guide Clearance

Methods for measuring valve stem and guide clearance and replacement.

2.3.9. Cylinder Block and Liner

Measurement and inspection of cylinder bore, liner projection, and replacement.

2.3.12. Crankshaft Inspection

Inspection and measurement of crankshaft journals, pins, bearings, and run-out.

2.4. Reassembly Procedures

Step-by-step guide for reassembling engine components.

2.4.1. General Component Reassembly

General assembly steps for major engine parts.

2.4.2. Inside Parts Reassembly

Reassembly of critical internal engine components.

3. SYSTEM OF LUBRICATION

3.1. General Description

Overview of the engine's lubrication system components and flow.

3.2. Oil Pump Service

Disassembly, inspection, and reassembly of the oil pump.

3.3. Oil Cooler Service

Procedures for disassembling, inspecting, and reassembling the oil cooler.

4. COOLING SYSTEM

4.1. General Description

Description of the cooling system for DB58T and DB58TI models.

4.2. Coolant Pump Service

Disassembly, inspection, and reassembly of the coolant pump.

4.3. Thermostat Service

Inspection and repair procedures for the engine thermostat.

5. FUEL SYSTEM

5.2. Fuel Filter Service

Disassembly, inspection, and reassembly of the fuel filter.

5.3. Injection Pump Service

Procedures for adjusting injection quantity and calibration data.

5.3.1. Injection Quantity Adjustment

Guidelines for adjusting the engine's fuel injection quantity.

5.3.4. Governor Disassembly

Detailed steps for disassembling the governor assembly.

6. ENGINE ELECTRICALS

6.1. Starter Motor

Main data, specifications, and construction of the starter motor.

6.2. Alternator

Specifications and disassembly steps for the engine's alternator.

7. TURBO CHARGER

General Description

General overview of turbocharger models RHB6A, RHB7, and RHC7.

7.1. Inspection of Rotor Shaft

Procedures for measuring axial and radial play of the turbocharger rotor shaft.

8. CAUSE OF TROUBLE, DIAGNOSIS AND TROUBLESHOOTING

1) Starting Trouble

Common starting problems, their causes, and remedies.

2) Abnormal of Operation

Troubleshooting guide for abnormal engine operation like idle or low speed issues.

3) Shortage of Engine output

Diagnosis and solutions for reduced engine power output.

4) Engine Noise Issues

Identifying causes and remedies for various engine noises.

5) Fuel Consumption Issues

Troubleshooting high fuel consumption issues.

6) Excessive Oil Consumption

Diagnosing and resolving excessive engine oil consumption.

7) Exhaust Smoke Issues

Identifying causes and solutions for excessive exhaust smoke.