Doosan G424FE Service Manual

Doosan
Engine
📖  Manuals supported for 10 models of Doosan
  • G424F
  • G20P-5
  • G25P-5
  • G30P-5
  • G33P-5
  • G35C-5
  • GC20P-5
  • GC25P-5
  • GC30P-5
  • GC33P-5
Table of Contents
  • Important safety information

    3
  • Precautions before Service

    9
  • Electrical system

    10
  • Tightening Torque

    12
  • Recommended Lubricants and Capacities

    13
  • Engine Model and Engine Serial Number

    14
  • General Specification

    15
  • G424F/G424FE Engine Power and Torque

    17
  • General Maintenance

    18
  • Engine Oil Classification

    19
  • Checking Engine Oil Level

    20
  • Checking Compressed Pressure

    21
  • Cooling System Maintenance

    22
  • Checking coolant leaks

    23
  • Checking and Adjusting Drive Belt

    24
  • Ignition System Maintenance

    25
  • Inspection of Spark Plug

    26
  • Fuel System Maintenance

    28
  • Pressure Regulator/Converter Inspection

    29
  • Maintenance Schedule

    30
  • General Information

    32
  • Technical Specifications

    33
  • Shells Selection Table

    35
  • Recommended Torque Values

    38
  • Troubleshooting

    40
  • Engine Exploded View

    41
  • Intake manifold and gasket

    43
  • Exhaust Manifold and Gasket

    47
  • Timing Belt

    49
  • Timing Belt Tensioner

    53
  • PCV Valve

    54
  • Crankcase ventilation

    55
  • Service procedure

    56
  • Camshaft Timing Pulley and/or Seal

    57
  • Crankshaft Front Seal

    58
  • Camshaft Case Cover and Gasket

    59
  • Timing Belt Rear Cover

    60
  • Cooling System

    62
  • Testing and adjusting

    64
  • Cooling system recommendation

    67
  • Thermostat Housing

    68
  • Water Pump

    69
  • Lubrication System

    70
  • Oil pan

    73
  • Oil Pump

    74
  • Oil Pump Assembly

    75
  • Camshaft Case Assembly

    76
  • Cylinder Head

    80
  • Valve, Spring or Seal

    81
  • Engine Disassembly

    83
  • Engine Assembly

    87
  • Cylinder Block

    92
  • Crankshaft

    93
  • Pistons and/or Connecting Rods

    99
  • Specifications

    103
  • Ignition System

    104
  • Inspection of Ignition Coil

    105
  • Spark Plug Wire Inspection

    106
  • Spark Plug Replacement

    107
  • Charging System

    109
  • Troubleshooting Procedure

    112
  • STARTING SYSTEM

    117
  • Diagnosis procedure

    118
  • Start Relay Tests

    120
  • Service Standard

    128
  • Component Location

    129
  • G424FE EMS (Engine Management System Overview

    133
  • LPG Fuel System Operation

    136
  • MPI Gasoline System Operation

    143
  • Electronic Throttle System

    144
  • Exhaust System

    146
  • SECM

    148
  • SECM Wiring Diagrams for G424FE

    151
  • G424F EMS (Engine Management System Overview

    154
  • EMS Inspection and Repair

    163
  • Camshaft Position Sensor

    165
  • IAT (Intake Air Temperature) Sensor

    169
  • Oxygen Sensor (Pre-Catalyst)

    170
  • Oxygen Sensor (Post-Catalyst)

    171
  • ECT (Engine Coolant Temperature) Sensor

    172
  • LP Fuel Temperature Sensor

    174
  • Angle Sensor-Accelerator

    175
  • Transmission Oil Temperature Switch

    176
  • Ground Speed Limit Switch (optional)

    177
  • Electronic Throttle Body

    178
  • G424FE LP System Inspection and Repair

    179
  • Hose Connections

    180
  • Removal and Installation of N-2007 LP Regulator

    182
  • Removal and Installation of CA100 Mixer for G424FE

    183
  • Tests and Adjustments

    185
  • AVV (Air Valve Vacuum) Testing

    187
  • Idle Mixture Adjustment

    188
  • Parts Description

    191
  • N-2007 Regulator for G424FE Engine

    193
  • G424F LPG System Inspection and Repair

    195
  • G424F Fuel System Connections

    196
  • Removal and Installation of N-2001 LP Regulator/Converter

    197
  • Removal and Installation of CA100 Mixer for G424F

    198
  • CA100 Disassembly and Service

    207
  • CA100 Disassembled Service

    208
  • N-2001 Regulator for G424F Engine

    209
  • N2001 Regulator Disassembly Steps

    211
  • N2001 Disassembled Service

    213
  • Specification

    214
  • Components Location

    215
  • Fuel Pressure Test

    216
  • Injector

    218
  • Injector inspection

    219
  • Fuel Pump

    221
  • Preliminary Checks

    222
  • Basic Troubleshooting Guide

    223
  • Basic Inspection Procedure

    224
  • Connector Inspection Procedure

    225
  • Symptom Troubleshooting Guide Chart

    229
  • Basic Troubleshooting

    235
  • Surges and/or Stumbles

    236
  • Engine Cranking but Will Not Start / Difficult to Start

    237
  • Acceleration

    239
  • Detonation / Spark Knock

    241
  • Backfire

    242
  • Rough, Unstable, Incorrect Idle, or Stalling

    243
  • Cuts Out, Misses

    245
  • Poor Fuel Economy / Excessive Fuel Consumption LPG Exhaust Smell

    246
  • High Idle Speed

    247
  • Excessive Exhaust Emissions or Odors

    248
  • Diagnostic Aids for Rich / Lean Operation

    249
  • Chart t-1 restricted exhaust system check

    250
  • Displaying Fault Codes (DFC) from SECM Memory

    251
  • Fault Action Descriptions

    252
  • Table 1. Fault List Definitions

    253
  • Table 2. diagnostic fault codes (flash codes)

    263
  • Introduction

    281
  • Connection of the Service Tool

    282
  • MotoView Display Screens

    283
  • SECM field update with Service Tool

    295
  • Ground Speed Limits (Option)

    299
  • LPG And LPG Fuel Tanks

    301
  • Lpg fuel tanks

    302
  • Regulatory Compliance

    305
  • Abbreviations

    306