Isuzu Engine (4J Series) Workshop Manual (LG4J-WE-9491)

If you own an Isuzu Engine with a 4J Series, it’s important to have a reliable workshop manual that you can turn to when you need to troubleshoot or fix any issues. Our comprehensive workshop manual, LG4J-WE-9491, is the perfect resource for anyone looking to maintain or repair their engine.

With detailed instructions and illustrations, our manual makes it easy to diagnose and repair any issues you may encounter with your engine. Whether you’re looking to replace a part, perform routine maintenance, or make more extensive repairs, our manual has everything you need to get the job done right.

Our manual covers all aspects of the Isuzu Engine (4J Series), including troubleshooting, disassembly, inspection, assembly, installation, and more. We provide step-by-step instructions and clear illustrations to guide you through each process, making it easy to understand even the most complex repairs.

At our shop, we pride ourselves on providing top-quality resources for Isuzu owners who are looking to maintain or repair their engines. Our workshop manual, LG4J-WE-9491, is the perfect resource for anyone who wants to keep their Isuzu Engine (4J Series) running smoothly and efficiently.

So if you’re in need of a reliable workshop manual for your Isuzu engine, don’t hesitate to contact us. Our expert team is here to provide you with the guidance and support you need to keep your engine running at its best. Trust us to provide you with the best resources for your Isuzu engine, and enjoy the peace of mind that comes with knowing your engine is in good hands.

Isuzu Engine (4J Series) Workshop Manual (LG4J-WE-9491) PDF free

Applicable Model:

  • NHR55
  • NKR55
  • NPR55
  • NPR69

This manual is applicable to 1994 year model and later vehicles.


  • Service Information
    • Troubleshooting
    • Main Data and Specifications
    • Service Standard
    • Servicing
    • Fixing Torque
    • Special Tools
  • Engine Mechanical
    • Cylinder Head
    • Valve Spring, Valve Guide Oil Seal, Valve Guide, Push Rod
    • Camshaft, Tappet
    • Rocker Arm Assembly
    • Oil Pump
    • Crankshaft
    • Piston and Connecting Rod
    • Cylinder Block
  • 4JB1/4JB1T/4JB1-TC/4JG2 Engine
    • General Description
    • Engine Mount (RH)
    • Engine Mount (LH)
    • Inlet Manifold
    • Exhaust Manifold
    • Oil Cooler
    • Oil Filter Cartridge
    • Cylinder Head Cover
    • Rocker Arm Shaft Assembly
    • Valvestem Oil Controller and Valve Spring
    • Timing Gear
    • Timing Belt
    • Cylinder Head Assembly and Gasket
    • Oil Pan
    • Oil Pump Assembly
    • Piston, Piston Ring and Connecting Rod
    • Camshaft and Tappet
    • Crankshaft Front Oil Seal (Gear Drive Type)
    • Crankshaft Front Oil Seal (Belt Drive Type)
    • Crankshaft Rear Oil Seal (Gear & Belt Drive Type)
    • Flywheel and Pilot Bearing
    • Crankshaft and Main Bearings
    • Engine Assembly
  • Engine Cooling
    • General Description
    • On Vehicle Service
    • Water Pump
    • Thermostat
    • Radiator
    • Drive Belt Adjustment
  • Fuel System
    • General Description
    • On-Vehicle Service
    • Fuel Filter Assembly
    • Fuel Filter Cartrige
    • Injection nozzle
    • Injection Pump Assembly (Gear Drive Type)
    • Injection Pump Assembly (Belt Drive Type)
    • Injection Timing Adjustment
    • Adjustment of Idling Speed
    • Injection Pump Data
    • Injection Volume and Governor Performance Diagram
    • Fuel Tank
    • Fuel Gauge Unit
    • Accelerator Control
    • Accelerator Control Cable
    • Accelerator Pedal
    • Idling Control Cable
    • Air Cleaner Element
  • Engine Electrical
    • Battery
    • Starting System
    • Charging System
    • QOS-II Preheating System
    • QOS-III Preheating System.
  • Exhaust Gas Recirculation (EGR) System
    • General Description
    • EGR System Wiring Diagram
    • EGR System Operation
    • EGR System Check
    • Inspection
  • Exhaust
    • General Description
    • Three Way Catalytic Converter
    • On-Vehicle Service
    • Front Exhaust Pipe
    • Exhaust Brake Unit
    • Inspection
  • Turbocharger
    • Turbocharger
    • Main Data and Specifications
    • General Description
    • Identification of Unit
    • Turbocharger Servicing
    • Precautions
    • Disassembly
    • Inspection and Repair
    • Reassembly
    • IHI Service Network

Language: English
Format: PDF
Pages: 406

Isuzu Engine (4J Series) Workshop Manual (LG4J-WE-9491) PDF free online