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Doosan G424FE - User Manual

Doosan G424FE
306 pages
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Service Manual
G424FE LP/Dual Fuel Engine
G
424F LP Engine
G20P-5, G25P-5, G30P-5, G33P-5, G35C-5
GC20P-5, GC25P-5, GC30P-5, GC33P-5
SB4251E00
May. 2007

Table of Contents

Questions and Answers

  • K
    Krista HatfieldAug 16, 2025
    What to do if my Doosan G424FE Engine has low oil pressure?
    • J
      Jill YoungAug 17, 2025
      If your Doosan Engine has low oil pressure, you can check the engine oil level, replace the oil pressure switch, install a new filter, replace the engine oil, replace or inspect components, or replace the bearing.
  • J
    jenniferlaraAug 19, 2025
    What to do if my Doosan Engine has an oil cooling system leak?
    • J
      James HolmesAug 19, 2025
      If your Doosan Engine has an oil cooling system leak, try retightening the connections or replacing the affected parts.
  • D
    Diana KleinAug 22, 2025
    What to do if my Doosan Engine has exhaust gas leak?
    • J
      johncolemanAug 22, 2025
      If your Doosan Engine has an exhaust gas leak, you can try retightening the connections or repairing or replacing the leaking components.
  • R
    Randy HallAug 26, 2025
    What to do if my Doosan G424FE Engine has abnormally high coolant temperature?
    • E
      Elizabeth HenryAug 26, 2025
      If your Doosan Engine has an abnormally high coolant temperature, you can replace parts, clean or replace parts, correct or replace components, replace the coolant, or add coolant. You might also need to repair or replace certain parts.
  • N
    Natasha HamiltonAug 28, 2025
    What to do if my Doosan G424FE Engine has low compression?
    • C
      Charles WattsAug 28, 2025
      If your Doosan Engine has low compression, consider the following solutions: replace the gasket, replace the ring, repair or replace the piston and cylinder block, or repair or replace the valve and seat ring.
  • K
    Katie HaydenAug 31, 2025
    What to do if my Doosan G424FE Engine has a noisy connecting rod or timing belt?
    • J
      Jennifer HunterAug 31, 2025
      If your Doosan Engine has a noisy connecting rod or timing belt, check the engine oil level, refer to the information for too low oil pressure, replace the engine oil, or replace the bearing.
  • S
    Scott CraneSep 3, 2025
    How to fix a noisy valve in my Doosan G424FE?
    • S
      Sandra OwensSep 3, 2025
      To address a noisy valve in your Doosan Engine, try replacing the engine oil, replacing the HLA, or replacing the belt stem or valve guide.
  • C
    Chad SimsSep 6, 2025
    What to do if my Doosan G424FE Engine has low coolant level?
    • L
      Lorraine DonovanSep 6, 2025
      If your Doosan Engine has a low coolant level, you can repair or replace parts, retighten the clamp or replace it, replace the gasket or housing, or replace other parts.
  • J
    James JohnsonSep 9, 2025
    How to fix a Doosan Engine timing belt that is noisy?
    • M
      Michael VazquezSep 9, 2025
      To fix a noisy timing belt on your Doosan Engine, correct the belt tension.
  • W
    William WilsonSep 12, 2025
    What to do if my Doosan G424FE has abnormally low coolant temperature?
    • M
      Melissa ReedSep 12, 2025
      If your Doosan Engine has an abnormally low coolant temperature, you can replace components or repair or replace parts.

Summary

Chapter 1. GENERAL INFORMATION

Precautions before Service

General safety precautions before performing service operations.

Chapter 2. RECOMMENDED MAINTENANCE

General Maintenance

Routine maintenance tasks for the engine.

Cooling System Maintenance

Procedures for maintaining the engine's cooling system.

Ignition System Maintenance

Procedures for maintaining the engine's ignition system.

Fuel System Maintenance

Tasks related to maintaining the fuel system, including filters and regulators.

Maintenance Schedule

A table outlining recommended maintenance intervals.

Chapter 3. ENGINE MECHANICAL SYSTEM

Technical Specifications

Detailed technical specifications for engine components.

Recommended Torque Values

Specific torque values for various engine fasteners.

Timing Belt

Information on timing belt removal, installation, and inspection.

Lubrication System

Overview of the engine's lubrication system.

Chapter 4. ENGINE ELECTRICAL SYSTEM

Ignition System

Overview of the spark-ignited engine's ignition system and its components.

Charging System

General description of the alternator and its function.

Chapter 5. ENGINE MANAGEMENT SYSTEM (EMS)

Chapter 6. LPG FUEL DELIVERY SYSTEM

Chapter 8. BASIC TROUBLESHOOTING

Chapter 9. ADVANCED DIAGNOSTICS

Doosan G424FE Specifications

General IconGeneral
Engine ModelG424FE
Number of Cylinders4
Compression Ratio17.5 : 1
Fuel SystemDirect Injection
AspirationNaturally Aspirated
Governor TypeMechanical
Cooling SystemWater-cooled
Lubrication SystemForced Lubrication
Starting SystemElectric starter

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