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Provides essential safety guidelines and precautions for performing maintenance work on the engine.
Information on how to identify the engine model and its components.
Definitions and explanations of terminology used in the manual.
List and explanation of abbreviations used throughout the manual.
Explanation of the International System of Units and its application.
Tables for converting between SI and conventional units and prefixes.
Table of standard tightening torque values for Isuzu bolts and nuts.
Illustrations and legend identifying different types of Isuzu standard bolt heads.
Specifications for flare nut tightening torque based on pipe diameter.
Torque values for taper screws used in brass connectors.
Important precautions and guidelines for performing service work on the engine.
Key specifications and data for the ISUZU DIESEL ENGINE (4HK1, 6HK1).
Details on the cylinder head cover, including components, removal, inspection, and installation.
Procedures for checking engine functions and performance.
List of special tools required for engine mechanical work.
Information regarding the oil port cover assembly, including components and procedures.
Details on the oil cooler, including components, removal, disassembly, reassembly, and installation.
Procedures for the oil pan, including components, removal, and installation.
Information on the oil pump, including components, removal, disassembly, reassembly, inspection, and installation.
Details on the oil pressure switch, including inspection procedures.
Illustrates how to read the engine model number and identify engine components.
Detailed explanations of engine components like cylinder block, crankshaft, cylinder liner, piston, and cylinder head.
Description of the Exhaust Gas Recirculation system, its components, and control.
Information on the connecting rod cap bolt and its tightening method.
Explanation of the common rail electronic control injection system and its operation.
Details on the fuel injector, including its function and ECM correction.
Description of the fuel filter with sedimenter and its water removal function.
Explanation of the preheating system, including its components and operation for cold starts.
Description of the lubrication system, including oil filter and oil cooler.
Procedure for inspecting and adjusting valve clearance, including required tools and torque.
Tables for adjusting valve clearance for 4HK1 and 6HK1 engines based on cylinder position.
Procedure for attaching the fuel injector harness and tightening terminals.
Procedure for inspecting engine compression pressure, including precautions and tool usage.
Detailed specifications for the 4HK1 engine model, covering type, displacement, and systems.
Detailed specifications for the 6HK1 engine model, covering type, displacement, and systems.
General| Bore x Stroke | 115 mm x 125 mm |
|---|---|
| Compression Ratio | 17.5:1 |
| Fuel System | Common Rail Direct Injection |
| Fuel Type | Diesel |
| Displacement | 5.2L |
| Aspiration | Turbocharged |
| Cooling System | Liquid Cooled |
| Engine Type | 4-Cylinder, In-line, 4-Stroke Diesel |
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