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Daewoo G20E-3 Service Manual
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G424 Service Manual
Cooling System
119
Remove & Install W
ater
T
emperature Sender
1.
Disconnect one wire connection (1).
2.
Remove water temperature sender (2).
NOTE:
For the installation of the water temperature
sender
, reverse the removal steps.
3.
Use thread sealant on the water temperature
sender threads.
2
1
119
121
Table of Contents
Default Chapter
2
Important Safety Information
2
Table of Contents
3
General Information
5
How to Read this Manual
5
Precaution before Service
7
General
9
Tightening Torque
10
Sealant
13
Specifications
14
General Specification
14
Service Specification
15
Maintenance
18
Test Fuel System for Leaks
18
Check Engine Oil Level
18
Inspect Engine for Fluid Leaks
18
Change Engine Oil and Filter
18
Inspect Accessory Drive Belts
19
Inspect Electrical System
19
Inspect Vacuum Lines and Fitting
19
Check Coolant Level
19
Inspect Coolant Hoses
19
Inspect Ignition System
19
Replace Spark Plug
19
Replace LP Fuel Filter Element
20
Test Fuelock (Electric)
20
Replace Gasoline Fuel Filter
21
Inspect Gasoline Carburetor
21
Inspect Pressure Regulator/Vaporizer
21
Inspect LP Mixer (Standard LP Truck)
21
Inspect Variable Venturi Air/Fuel Mxer
21
(Low Emission LP Truck)
21
Inspect Complete Exhaust System for Leaks,Damage
21
Engine Control Unit(ECU) and Others (Low Emission LP Truck)
21
Maintenance Schedule
22
Engine System
23
Engine Overview
23
Timing System
26
Silent Shaft Mechanism
27
Auto Lash Adjuster
28
Intake and Exhaust System
29
Electrical System
31
Starting System
33
General Description
33
Start Relay Test
36
Starter Motor
37
Operation
37
Removal and Installation
40
Disassembly and Reassembly
43
Charging System
48
General Description
48
Alternator
48
Ignition System
51
Breakerless Ignition System
51
Distributor
52
Removal and Installation
55
Inspection Ignition Coil/Cables
56
Installation Service Points of IGNITION SYSTEM
56
Distributor, Disassembly and Reassembly
57
Gasoline Fuel System
59
General Description
59
Geasoline Carburetor, Operation
60
Idle System
62
Removal and Installation
65
Gasoline Carburetor Disassembly and Reassembly
67
Lpg Fuel System
74
General Description
74
Electric Fuelock Model
74
Converter
75
Fuel Tank
76
LP Relief Valve
76
Carburetor
77
Tests or Adjustments
78
Carburetor Adjustment
78
Fuel System Leak Check
80
Recommendation for LP Fuel System
81
LP Converter - Check, Clean
82
Disassembly and Assembly
83
LPG Carburetor
83
LP Gas Fuelock
85
LP Gas Converter
86
Lpg Fuel System (Low Emission Version)
88
General Description
88
LP Carburetor
90
Vacuum Switch (MAP)
91
Vacuum Switch
91
LP Converter
92
Fuel Control Valve
93
Fuelock Valve
93
Engine Control Unit (ECU)
94
Oxygen Sensor
95
Catalytic Muffler
96
Tests or Adjustments
97
LP Carburetor-Check, Clean
97
LP Converter-Check,Clean
98
Inspection of Fuelock Valve
98
Inspection of Fuel Control Valve
98
Inspection of Vacuum Switch
98
Inspection of Vacuum Switch (MAP)
98
Inspection of Oxygen Sensor
99
Disassembly and Assembly
100
LPG Carburetor
100
LP Gas Converter
102
Dual Fuel System
103
Governing System
104
Carburetor
104
General Description
104
Governor,Disassembly and Reassembly
105
Lubrication System
107
General Description
107
Testing and Adjusting
108
Engine Oil
108
Lubrication System Problem
108
Oil Pressure Check
110
Cooling System
111
General Description
111
Testing and Adjusting
112
Cooling System Visual Inspection
112
Cooling System Tests
112
Thermostat
114
Cooling System Heat Problem
115
Cooling System Recommendation
115
Belt Adjustment
117
V-Belt Diagnosis
117
Serivce Procedure
118
Draining and Filling the Cooling System
118
Service Procedures
118
Flushing the Cooling System
119
Radiator Service
119
Removal & Install Water Temperature Sender
120
Base Engine Service Procedure
121
Timing Belt
121
Installation Service Points of Base Engine
125
Timing Belt B Installation
126
Intake Manifold
130
Exhaust Manifold and Water Pump
131
Rocker Arms and Camshaft
134
Cylinder Head and Valves
140
Front Case and Oil Pan
146
Piston and Connecting Rod
155
Crankshaft and Cylinder Block
163
Adjustment and Troubleshooting
170
Adjustment
170
Valve Clearnce Adjustment
170
Ignition Timing Adjustment
170
Idle Speed Adjustment
172
Air Governor Adjustment
172
Anti-Hunting Adjustment
172
Troubleshooting
173
Engine Performance
173
Engine Starting Problems
173
Charging System Problems
174
Instrument Problems
174
Engine Noise
175
Oil Pressure Diagnostics
177
Oil Pressure Problems
178
Water in Engine
179
Engine Overheating
180
LP Fuel System
181
(Standard And/Or Low Emission Version)
181
General
188
Troubleshooting Flow Chart
188
Engine
190
Electrical Components
193
Special Tools
196
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Daewoo G20E-3 Specifications
General
Brand
Daewoo
Model
G20E-3
Category
Engine
Language
English
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