Isuzu N series 4HG1 engine workshop service manual

Description Isuzu N series 4HG1 engine workshop service manual

Isuzu N series 2008 - 2014 year 4HG1 engine pdf workshop service & repair manual 

Technical data, electrical diagrams, schematics, specifications, troubleshooting, maintenance, disassembly, assembly, removal, installation, inspection and other information 

MANUAL CONTENT:
ENGINE MECHANICAL
General Description    
Cylinder Head    
Cylinder Block    
Piston
Connecting Rod and Crankshaft
Valve Train    
Fuel System    
Intake and Exhaust Systems    
Lubrication System    
Cooling System    
Important Operations

Troubleshooting    
Hard Starting    
Unstable Idling    
Insufficient Power    
Excessive Fuel Consumption    
Excessive Oil Consumption    
Overheating    
White Exhaust Smoke    
Dark Exhaust Smoke    
Oil Pressure Does Not Rise    
Abnormal Engine Noise    
Engine Cooling Trouble    
Starter Motor Does Not Stop

Service Standard    
Engine    
Cylinder Head    
Camshaft    
Rocker Arm and Rocker Arm Shaft    
Valve    
Cylinder Block    
Crankshaft    
Piston    
Piston Pin    
Piston Ring    
Connecting Rod    
Flywheel    
Gear Train    
Lubrication System    
Cooling System    
Fuel System    
Engine Electrical

Servicing    
Model Identification    
Air Cleaner    
Lubricating System    
Fuel System    
Engine Control    
Accelerator Control    
Engine Stop Control    
Valve Clearance Adjustment    
Injection Timing Adjustment    
Compression Pressure Measurement
Quick-On-Start II System    
Primary Specifications    

Special Tools    

Engine Assembly    
Component    
Removal    
Installation    

Engine Assembly (Bus Model)    
Component    
Removal    
Installation    

Engine Mount (RH,LH)    
Component    
Removal    
Installation    
List of Tightening Torques    

Cylinder Head Cover    
Component    
Removal    
Installation    

Inlet Cover / Inlet Case    
Component    
Removal    
Installation    

Exhaust Manifold (4HG1)    
Component    
Removal    
Installation    
List of Tightening Torques    

Exhaust Manifold (4HG1-T)    
Component    
Removal    
Installation    
List of Tightening Torques    

Timing Gear Replacement    
Component    
Removal    
Inspection    
Installation    
List of Tightening Torques    

Valve Guide Seal & Valve Spring    
Component    
Removal    
Installation    

Valve Spring, Valve Guide Oil Seal, Valve
Valve Guide    
Component    
Disassembly    
Inspection and Repair    
Reassembly    

Rocker Arm Shaft Assembly
Component    
Removal    
Disassembly    
Inspection and Repair    
Reassembly    
Installation    

Camshaft Assembly    
Component        
Removal    
Disassembly        
Inspection and Repair    
Reassembly    
Installation    

Cylinder Head (4HG1)    
Component    
Removal    
Disassembly    
Inspection and Repair    
Reassembly
Installation    
List of Tightening Torques

Cylinder Head (4HG1-T)    
Component    
Removal    
Disassembly    
Inspection and Repair    
Reassembly    
Installation    
List of Tightening Torques

Flywheel and Pilot Bearing    
Component    
Removal    
Inspection and Repair    
Installation    

Crankshaft Front Oil Seal    
Component    
Removal    
Installation    

Crankshaft Rear Oil Seal    
Component    
Removal    
Installation    

Piston and Connecting Rod
Component    
Disassembly    
Inspection and Repair    
Reassembly    

Crankshaft    
Component    
Removal    
Disassembly    
Inspection and Repair    
Reassembly    
Installation    
List of Tightening Torques

Cylinder Block    
Component    
Removal    
Inspection and Repair    
Installation

Engine Cooling
Fuel System
Engine Electrical
Emission Control
Engine Exhaust
Engine Lubrication
Pre-Heating System