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Isuzu 6BD1 User Manual

Isuzu 6BD1
216 pages
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INDUSTRIAL
INDUSTRIAL
DIESEL ENGINE
DIESEL ENGINE
4B-6B SERIES
4B-6B SERIES
4BB1-4BD1-6BB1-6BD1-6BG1
4BB1-4BD1-6BB1-6BD1-6BG1
4BD1T-6BD1T-6BG1T
4BD1T-6BD1T-6BG1T
MODELS
MODELS
WORKSHOP MANUAL
ISUZU MOTORS LIMITED
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Table of Contents

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Isuzu 6BD1 Specifications

General IconGeneral
Bore x Stroke102 mm x 118 mm
Compression Ratio17.5:1
AspirationNaturally aspirated
Fuel SystemDirect injection
Fuel TypeDiesel
Engine TypeDiesel, 4-stroke
Displacement5.785 L (5785 cc)
WeightApproximately 500 kg
Coolant Capacity16 L

Summary

General Information

General Repair Instructions

General guidelines for performing repair operations safely and correctly.

Main Data and Specifications

Provides key technical data and specifications for different engine models.

Tightening Torque Specifications

Lists torque values for various bolts and nuts across different material types.

Angular Nut and Bolt Tightening Method

Describes the angular method for tightening nuts and bolts for precise assembly.

Major Parts Fixing Nuts and Bolts

Illustrates and specifies torque values for nuts and bolts used in major engine components.

Maintenance

Lubricating System Maintenance

Covers the maintenance procedures for the engine's lubricating system, including oil filter.

Fuel System Maintenance

Details maintenance for the fuel system, including fuel filter and injection nozzle.

Cooling System Maintenance

Outlines maintenance procedures for the engine's cooling system components like belts and thermostat.

Valve Clearance Adjustment Procedure

Provides instructions on how to adjust valve clearance for optimal engine operation.

Injection Timing Adjustment

Explains the procedure for checking and adjusting the engine's injection timing.

Compression Pressure Measurement

Describes how to measure engine compression pressure to diagnose internal issues.

Engine Assembly I (Disassembly)

External Parts Disassembly Steps

Outlines the steps for disassembling external engine components.

Major Components Disassembly Steps

Details the disassembly procedures for major internal engine components.

Cylinder Head Disassembly Steps

Details the procedure for disassembling the cylinder head assembly.

Piston and Connecting Rod Disassembly

Explains the steps for disassembling the piston and connecting rod assembly.

Engine Assembly II (Inspection & Repair)

Cylinder Head Inspection and Repair

Covers inspection and repair procedures for the cylinder head, including warpage and leakage tests.

Valve Guide Inspection and Clearance

Details the inspection and replacement procedures for valve guides and their clearance.

Valve Depression and Contact Width

Explains how to measure and check valve depression and valve contact width.

Valve Seat Insert Removal and Installation

Describes the process for removing, installing, and correcting valve seat inserts.

Camshaft Inspection

Explains how to inspect the camshaft, including bearing clearance and lobe height.

Cylinder Liner Bore Measurement

Provides methods for measuring cylinder liner bore and selecting the correct liner grade.

Cylinder Bore and Liner Grade Selection

Guides the selection of cylinder liner grades based on bore measurements.

Cylinder Liner Bore and Piston Clearance

Provides specifications for cylinder liner bore and piston clearance.

Crankshaft Inspection

Covers crankshaft inspection, including journal surfaces, oil ports, and pin/crankpin diameters.

Crankshaft Journal and Bearing Clearances

Provides specifications for crankshaft journal and bearing clearances.

Engine Assembly III (Reassembly)

Major Component Reassembly I

Details the reassembly of major engine components like crankshaft, bearings, and timing gears.

Major Component Reassembly II

Covers reassembly of components such as pistons, connecting rods, and timing gears.

Lubricating System

Cooling System

Fuel System

Injection Nozzle Inspection and Repair

Covers disassembly, inspection, and repair procedures for the injection nozzle.

Injection Starting Pressure Adjustment

Explains how to adjust the injection starting pressure for the injection nozzles.

Injection Pump Calibration Data

Provides test conditions and data required for fuel injection pump adjustment.

Turbocharger

Troubleshooting

Troubleshooting: Hard Starting

Provides a troubleshooting guide for engine hard starting issues.

Troubleshooting: Overheating

Outlines troubleshooting steps for engine overheating problems.

Troubleshooting: Oil Pressure Does Not Rise

Offers troubleshooting solutions for low engine oil pressure.

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