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General| Engine Model | A-4BG1T |
|---|---|
| Compression Ratio | 17.5:1 |
| Fuel Type | Diesel |
| Fuel System | Direct Injection |
| Aspiration | Turbocharged |
| Starting System | Electric starter |
| Displacement | 4.329 L |
| Cooling System | Water-cooled |
| Lubrication System | Forced lubrication by trochoid pump |
Provides essential guidelines for performing engine service operations safely and effectively.
Explains the structure, conventions, and notation used throughout the workshop manual.
Presents key technical data and specifications for the 4BG1, 4BGT, 6BG1, and 6BGT engines.
Lists specified tightening torque values for various standard and flanged head bolts.
Details the step-by-step procedure for applying angular torque to nuts and bolts.
Illustrates and specifies torque values for critical component fasteners like cylinder head bolts.
Guides on identifying engine and injection pump models and serial numbers.
Covers maintenance procedures for the engine's lubricating system, including oil filter replacement.
Details maintenance tasks for the fuel system, focusing on fuel filter replacement and nozzle checks.
Outlines maintenance for the cooling system, including fan belt adjustment and thermostat inspection.
Explains the procedure for measuring and adjusting valve clearances on the engine.
Provides instructions for checking and adjusting the engine's fuel injection timing.
Details the method for measuring engine compression pressure to assess cylinder health.
Describes checks for air and oil leaks, and fastener tightness on the turbocharger assembly.
Lists components included in the engine repair kit for naturally aspirated engines.
Lists components included in the engine repair kit for turbocharged engines.
Specifies the types of lubricants recommended for the engine based on its configuration.
Provides a chart for selecting engine oil viscosity based on ambient temperature.
Details the removal sequence for external engine components on the right-hand side.
Details the removal sequence for external engine components on the left-hand side.
Illustrates and lists major engine components for disassembly, part 1.
Illustrates and lists major engine components for disassembly, part 2.
Explains the disassembly procedure for the rocker arm and shaft assembly.
Details the steps for disassembling the cylinder head and its related components.
Outlines the procedure for removing piston rings, pins, and connecting rod bearings.
Covers inspection of cylinder head warpage, height, and water jacket pressure test.
Explains how to measure valve stem/guide clearance and replace valve guides.
Details measuring valve spring free length, tension, and inclination.
Describes inspecting tappets for wear and measuring tappet diameter.
Covers measuring push rod run-out and inspecting rocker arm contact surfaces.
Explains inspecting rocker arm shaft diameter and clearance, and oil ports.
Covers measuring idler gear shaft outside diameter and gear shaft clearance.
Details measuring camshaft bearing clearance, lobe height, and journal diameter.
Covers measuring cylinder liner bore, projection, and replacement procedures.
Explains measuring piston ring groove and piston ring gap clearances.
Covers measuring piston pin outside diameter and piston pin hole clearance.
Details connecting rod alignment and piston pin/small end bushing clearance checks.
Covers inspecting crankshaft journals, pins, and measuring bearing clearances.
Describes inspecting and replacing flywheel ring gear and housing oil seal.
Covers crankshaft front oil seal replacement procedures.
Details the steps for reassembling pistons, connecting rods, rings, and bearings.
Guides on reassembling cylinder head components like valves, springs, and manifolds.
Explains the reassembly of the rocker arm and shaft assembly, ensuring oil ports face up.
Covers reassembly of major engine components like crankshaft, camshaft, and oil pump.
Covers reassembly of flywheel, injection pump, and other major engine parts.
Details reassembly of external components on the engine's left-hand side.
Details reassembly of external components on the engine's right-hand side.
Provides steps for tuning the engine after reassembly to ensure optimal performance.
Presents sectional drawings of the engine for reference.
Provides a schematic overview of the engine's lubricating system and its components.
Details the disassembly steps for the oil pump assembly.
Covers disassembly, inspection, and reassembly of the main oil filter.
Details the disassembly, inspection, and reassembly of the oil cooler.
Provides a schematic overview of the engine's cooling system.
Covers disassembly, inspection, and reassembly of the water pump.
Details inspection and function check of the engine's thermostat.
Provides a schematic overview of the engine's fuel system.
Covers disassembly, inspection, and reassembly of the fuel filter.
Details disassembly, inspection, and reassembly of the injection nozzle.
Presents test conditions and calibration data required for fuel injection amount adjustment.
Illustrates sectional views of the TD04H and RHE6 turbochargers.
Explains how to identify IHI and Mitsubishi turbocharger models and their plates.
Details inspection procedures for rotor shaft axial and radial play.
Provides a sectional view and main data for the air compressor.
Outlines the steps for disassembling the air compressor components.
Covers measuring cylinder bore, piston, ring, and crank clearances.
Details the steps for reassembling the air compressor, including crankshaft and cylinder installation.
Explains how to identify starter models using Nikko and Hitachi identification plates.
Presents key data and specifications for starter motors, including electrical and mechanical values.
Illustrates a sectional view of the starter motor for component identification.
Provides an exploded view of the starter motor for disassembly and reassembly reference.
Explains how to identify alternator models using Nikko and Hitachi identification plates.
Presents key data and specifications for alternators, including electrical and mechanical values.
Illustrates a sectional view of the alternator for component identification.
Provides an exploded view of the alternator for disassembly and reassembly reference.
Troubleshooting guide for engine starting problems, covering starter and fuel delivery issues.
Troubleshooting guide for engines with unstable or improper low idling conditions.
Troubleshooting guide for engine power loss issues, covering fuel, air, and timing problems.
Troubleshooting guide for high fuel consumption, related to leaks, timing, and engine components.
Troubleshooting guide for excessive engine oil consumption, covering seals, rings, and liners.
Troubleshooting guide for engine overheating, addressing cooling system components and timing.
Troubleshooting guide for white exhaust smoke, related to fuel quality, timing, and internal engine issues.
Troubleshooting guide for dark exhaust smoke, often indicating rich fuel mixture or timing issues.
Troubleshooting guide for low or absent engine oil pressure, checking oil system components.
Troubleshooting guide for various abnormal engine noises, including knocking and gas leakage.
Lists essential special tools required for engine maintenance and repair, with part numbers.
Provides conversion factors between millimeters, inches, feet, and meters.
Offers conversion factors for area measurements between square inches and square centimeters.
Provides conversion factors for volume between U.S. gallons, Imperial gallons, liters, and cubic inches.
Lists conversion factors for mass between pounds and kilograms.
Provides conversion factors for pressure between psi, kg/cm², and kPa.
Lists conversion factors for torque between foot-pounds, kg-m, and N-m.
Provides conversion factors between Fahrenheit and Centigrade temperature scales.
