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Toyota 1HZ Repair Manual

Toyota 1HZ
348 pages
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Table of Contents

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Toyota 1HZ Specifications

General IconGeneral
Fuel TypeDiesel
Maximum Power96 kW (129 hp) at 3800 rpm
Firing Order1-5-3-6-2-4
AspirationNaturally aspirated
Fuel SystemDirect injection
Cooling SystemWater-cooled
Displacement4.2 L (4164 cc)
Maximum Torque285 N·m (210 lb·ft) at 2200 rpm
ValvetrainSOHC, 12 valves (2 per cylinder)

Summary

CAUTION

INTRODUCTION

GENERAL REPAIR INSTRUCTIONS

General guidelines for performing repair and service tasks safely and effectively.

ENGINE MECHANICAL

DIESEL ENGINE DIAGNOSIS

Troubleshooting specific to diesel engine issues.

DIESEL ELECTRICAL SYSTEM DIAGNOSIS

Diagnosing electrical system problems for diesel engines.

ENGINE TUNE-UP

Procedures for engine tune-up, including inspections and adjustments.

ADJUSTMENT OF VALVE CLEARANCE

Step-by-step guide for adjusting valve clearance.

ADJUSTMENT OF INJECTION TIMING

Procedures for setting and adjusting engine injection timing.

COMPRESSION CHECK

Procedure for checking cylinder compression pressure.

CYLINDER HEAD

Components, removal, disassembly, and assembly of the cylinder head.

CYLINDER BLOCK

Components, disassembly, inspection, and assembly of the cylinder block.

TURBOCHARGER SYSTEM

TURBOCHARGER ELECTRICAL SYSTEM DIAGNOSIS (HZJ80)

Troubleshooting the turbocharger indicator light and warning light.

REMOVAL OF TURBOCHARGER

Step-by-step instructions for removing the turbocharger assembly.

INSTALLATION OF TURBOCHARGER

Step-by-step instructions for installing the turbocharger assembly.

FUEL SYSTEM

INJECTION NOZZLES (1PZ AND 1HZ)

Removal, testing, and installation of injection nozzles.

INJECTION NOZZLES (1HD-T)

Removal, testing, and installation of 1HD-T injection nozzles.

INJECTION PUMP

Removal, disassembly, inspection, and assembly of the injection pump.

COOLING SYSTEM

LUBRICATION SYSTEM

OIL PUMP

Components, removal, inspection, and assembly of the oil pump.

STARTING SYSTEM

STARTER

Components, disassembly, assembly, and performance testing of the starter.

CHARGING SYSTEM

TROUBLESHOOTING

Troubleshooting guide for charging system problems.

ALTERNATOR

Components, disassembly, inspection, and assembly of the alternator.

STANDARD BOLT TORQUE SPECIFICATIONS

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