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Isuzu 6BB1 User Manual

Isuzu 6BB1
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 6BB1 Specifications

General IconGeneral
Engine TypeDiesel
ConfigurationInline
Cylinders6
Power Output88 kW (118 hp) @ 3, 200 rpm
Bore x Stroke125 mm
Displacement5.8L (5766 cc)

Summary

General Information

General Repair Instructions

Provides essential guidance for performing service operations on the engine, emphasizing safety and proper tool usage.

Main Data and Specifications

Presents detailed technical specifications for various engine models, including dimensions and performance data.

Tightening Torque Specifications

Provides torque values for various nuts and bolts across different engine models and materials.

Angular Nut and Bolt Tightening Method

Explains the procedure for tightening nuts and bolts using the angular method, emphasizing precision and proper technique.

Major Part Fixing Nuts and Bolts

Illustrates and lists torque specifications for major nuts and bolts used in cylinder head and cover assemblies.

Maintenance

Lubricating System

Details the procedures for lubricating the engine, including oil filter replacement and torque specifications.

Fuel System

Covers maintenance of the fuel system, including fuel filter replacement, injection nozzle checks, and adjustments.

Valve Clearance Adjustment

Provides instructions for checking and adjusting valve clearance, including necessary tools and procedures.

Injection Timing

Explains the procedures for checking and adjusting the engine's injection timing for optimal performance.

Compression Pressure Measurement

Details the method for measuring engine compression pressure to diagnose potential issues.

Engine Assembly I (Disassembly)

Major Components-I

Illustrates and lists major engine components and their disassembly steps.

Cylinder Head Disassembly Steps

Provides instructions for disassembling the cylinder head, including component identification.

Piston and Connecting Rod Disassembly Steps

Guides on the disassembly of pistons and connecting rods, including component identification.

Engine Assembly II (Inspection & Repair)

Cylinder Head

Covers inspection and repair of the cylinder head, including warpage and water pressure tests.

Valve Guide

Details methods for inspecting and replacing valve guides, including clearance measurements.

Cylinder Liner Bore Measurement

Provides methods for measuring cylinder liner bore, including total indication reading and grade selection.

Crankshaft

Covers crankshaft inspection, journal and crankpin diameter measurements, and bearing clearances.

Crankshaft Journal and Bearing Clearances

Provides detailed specifications for crankshaft journal and main bearing clearances for different engine models.

Engine Assembly III (Reassembly)

Injection Pump and Injection Pump Gear Assembly

Details the reassembly of the injection pump and its gear assembly, including timing checks.

Cylinder Head Gasket

Provides instructions for installing the cylinder head gasket and tightening cylinder head bolts.

Engine Tuning Operation

Outlines the procedure for tuning the engine after reassembly, including starting and running operations.

Lubricating System

Cooling System

Fuel System

Injection Starting Pressure Adjustment

Explains the procedure for adjusting the injection starting pressure for various engine models.

Air Compressor

Troubleshooting

Hard Starting

Guides through troubleshooting steps for hard starting issues, covering battery, starter, and fuel delivery problems.

Engine Turns Over But Does Not Start

Troubleshooting chart for when the engine turns over but does not start, focusing on fuel and ignition systems.

Engine Turns Over But Does Not Start - Fuel Is Being Delivered to the Injection Pump

Troubleshooting steps for engine start issues when fuel is delivered to the injection pump.

Engine Turns Over But Does Not Start

Troubleshooting steps for engine start issues when fuel is not being delivered to the injection pump.

Unstable Low Idling

Troubleshooting guide for unstable low idling conditions, covering fuel system and engine adjustments.

Insufficient Power

Troubleshooting steps for insufficient engine power, covering air, fuel, and compression issues.

Excessive Fuel Consumption

Troubleshooting chart for excessive fuel consumption, focusing on fuel system and engine tuning.

Excessive Oil Consumption

Guides through troubleshooting steps for excessive oil consumption, covering oil seals and piston rings.

Overheating

Troubleshooting steps for engine overheating, including cooling system and fuel injection timing checks.

White Exhaust Smoke

Troubleshooting guide for white exhaust smoke, covering fuel quality and engine internal issues.

Dark Exhaust Smoke

Troubleshooting steps for dark exhaust smoke, focusing on air intake and fuel system adjustments.

Oil Pressure Does Not Rise

Troubleshooting chart for oil pressure not rising, covering engine oil, oil filter, and oil pump issues.

Abnormal Engine Noise

Troubleshooting guide for abnormal engine noises, covering various mechanical and system issues.

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