Isuzu Engine 4H Series Workshop Manual (LG4H-WE-9691)

Isuzu

This manual is applicable to 1996 year model and later vehicles except those sold in the United States of America, and Canada.

Before using this Workshop Manual to assist you in performing vehicle service and maintenance operations, it is recommended that you carefully read and thoroughly understand the information contained in Section OA under the headings “GENERAL REPAIR INSTRUCTIONS” and “HOW TO USE THIS MANUAL”.

Applicable Model:

NKR66
NPR66
NPR70
NPR71
NPS66
NPS71
NQR66
NQR70
NQR71

HIS MANUAL INCLUDES THE FOLLOWING SECTIONS:

Service Information

Troubleshooting
Main Data and Specifications
Service Standard
Servicing
Fixing Torque
Special Tools
Lubricating System

Engine Mechanical

Cylinder Head
Valve Spring, Valve Guide Oil Seal, Valve, Valve Guide
Camshaft
Rocker Arm Assembly
Oil Pump
Crankshaft
Piston and Connecting Rod
Cylinder Block

Engine (4HF1/4HF1-2/4HE1-T/4HE1-TC/4HG1/4HG1-T)

General Description
Engine Mount (RH, LH)
Cylinder Head Cover
Inlet Cover/lnlet Case
Exhaust Manifold
Timing Gear Replacement
Valve Guide Seal & Valve Spring
Rocker Arm Shaft Assembly
Camshaft Assembly
Cylinder Head
Circumference Parts Of Cylinder Head
Oil Filter Assembly
Oil Filter Cartridge
Oil Cooler
Oil Pan
Oil Pump Assembly
Oil Relief Valve
Piston, Piston Ring, Piston Pin and Connecting Rod
Flywheel and Pilot Bearing
Crankshaft Front Oil Seal
Crankshaft Rear Oil Seal
Crankshaft
Cylinder Block
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 (Except 4HF1-2 model)
Fuel Filter Assembly (4HF1-2 model only)
Injection Nozzle Assembly
Injection Pump Assembly (Except 4HF1-2 model)
Injection Pump Assembly (4HF1-2 model only)
Injection Timing Adjustment
Injection Pump Data
Aneroid Compensator Adjustment
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

Emission and Electrical Diagnosis

SUBJECT
GENERAL DESCRIPTION
DIAGNOSIS (4HE1-T/TC ONLY)
BRIEF EXPLANATION OF EMISSION AND ELECTRICAL CONTROL SYSTEM
WITHOUT DIAGNOSIS TROUBLE CODE
SPECIAL TOOLS
DIAGNOSIS (4HG1-T ONLY)
GENERAL SERVICE INFORMATION.
WITHOUT DIAGNOSIS TROUBLE CODE

Exhaust

General Description
Gasket
On-Vehicle Service
Front Exhaust Pipe

Turbocharger

General Description
On-Vehicle Service
Charge Air Pipe
Intake Manifold
Turbocharger
Inspection and Repair
Oil Leakage Check
Exhaust Manifold
Turbocharger Turbine Housing Replacement (For 4HG1-T model)
Charge Air Cooler

Language: English
Format: PDF
Pages: 691

Isuzu Engine 4H Series Workshop Manual (LG4H-WE-9691) PDF free online