Isuzu 4JB1T User Manual

Name: Isuzu 4JB1T
Brand: Isuzu
Rating: 5 (1 reviews)

60 pages

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SERVICE INF

ORMATION 00 – 25

Checkpoi

nt Trouble Cause Countermeasure

Center

housing oil drain passage

estricted

Clean or

replace

Continued f

rom the previous page

Hard Starting1
Starter Inoperative1
Starter Motor Operates but Engine Does Not Turn over1
Engine Turns over but Does Not Start2
Fuel Is Not Being Delivered to the Injection Pump2
Fuel Is Being Delivered to the Injection Pump2
Quick-On Start System3
Glow Plugs Are Receiving Power3
Glow Plugs Are Not Receiving Power3
Unstable Idling4
Insufficient Power5
Excessive Fuel Consumption7
Overheating8
White Exhaust Smoke8
Dark Exhaust Smoke9
Oil Pressure Does Not Rise9
Abnormal Engine Noise10
Engine Knocking10
Gas Leakage Noise10
Continuous Noise10
Slapping Noise11
Engine Cooling Trouble12
Engine Electrical Part Trouble13
Turbocharger18
Engine Has Less than Normal Power18
Blue or Black Smoke20
Excessive Oil Consumption22
Excessive Turbocharger Noise24
Excessive Rotating Part Wear26
Lubrication Chart27
4JB1, 4JB1TC, 4JG2, Oil Filter & Oil Cooler27
Main Data and Specifications28
Engine Cooling30
Starting System30
Charging System31
Service Standard32
Engine Mechanical32
Servicing36
Model Identification36
Engine Serial Number36
Air Cleaner36
Lubricating System37
Main Oil Filter (Cartridge Type Paper Element)37
Replacement Procedure37
Fuel System38
Fuel Filter38
Fuel Filter Water Draining Procedure38
Air Bleeding39
Cooling System39
Coolant Level39
Engine Coolant Change Procedure39
Cooling System Inspection41
Radiator Cap Inspection41
Thermostat Operating Test41
Drive Belt Adjustment42
Cooling Fan Pulley Drive Belt42
Compressor Pulley Drive Belt42
Power Steering Oil Pump Pulley Drive Belt42
Engine Control43
Idling Speed Inspection and Adjustment43
Accelerator Control Cable Adjustment43
Accelerator Pedal Adjustment43
Valve Clearance Adjustment44
Injection Timing Adjustment45
Compression Pressure Measurement47
Quick-On Start II System (4JB1/4JB1T/4JB1TC Only)47
Quick-On Start III System (4JG2 Only)48
Fixing Torque49
Cylinder Head Cover, Cylinder Head Rocker, Shaft Braker49
Crankshaft, Bearing Cap, Connecting Rod Bearing Cap, Crankshaft Damper Pulley, Flywheel, Oil Pan50
Timing Pulley Housing, Timing Pulley, Timing Gear, Camshaft Oil Seal Retainer51
Cooling System and Lubrication System52
Intake Manifold, Exhaust Manifold, Exhaust Pipe53
Engine Electricals55
Engine Fuel56
Engine Mounting Bracket57
Special Tools58

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Isuzu 4JB1T Specifications

General

Displacement	2.8 L (2771 cc)
Bore x Stroke	93 mm x 102 mm
Fuel System	Direct Injection
Cooling System	Water-cooled
Aspiration	Turbocharged
Weight	Approx. 230 kg (dry)

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Isuzu 4JB1T User Manual

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Isuzu 4JB1T Specifications

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