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General| Engine Model | A-4BG1 |
|---|---|
| Cylinders | 4 |
| Fuel System | Direct Injection |
| Fuel Type | Diesel |
| Cooling System | Water-cooled |
| Lubrication System | Forced lubrication |
| Engine Type | 4-stroke, water-cooled, direct injection diesel |
Provides essential guidelines for performing engine service operations safely and effectively.
Explains the manual's structure, notation, and how to use its sections.
Details key technical data and specifications for the 4BG1 and 4BG1T engines.
Lists tightening torque values for various standard and flanged head bolts.
Details the step-by-step procedure for angular tightening of nuts and bolts.
Illustrates and specifies torque values for fixing major engine components.
Provides information on identifying engine and injection pump models.
Covers replacement procedures for the main oil filter and related components.
Details fuel filter replacement, overflow valve, and injection nozzle inspection.
Explains adjustment of the cooling fan drive belt and thermostat inspection.
Provides procedures for checking and adjusting valve clearances.
Details the procedure for checking and adjusting engine injection timing.
Explains how to measure engine compression pressure for diagnostics.
Covers visual inspection of the turbocharger for air and oil leaks.
Lists components included in repair kits for naturally aspirated and turbocharged engines.
Specifies recommended lubricants and engine oil viscosity grades.
Details the right-hand side disassembly steps for external engine components.
Illustrates and lists major engine components for disassembly.
Details the steps for disassembling the rocker arm and rocker arm shaft assembly.
Details the procedure for disassembling the cylinder head components.
Outlines the steps for disassembling the piston and connecting rod assembly.
Covers inspection of cylinder head lower face warpage and water jacket pressure test.
Details measurement and replacement procedures for valve stem and guide clearance.
Explains how to measure valve depression and contact width.
Details the process of removing, installing, and correcting valve seat inserts.
Specifies how to measure valve spring free length and tension.
Covers inspection of tappets for wear and measurement of tappet diameter.
Explains how to measure valve push rod run-out.
Details inspection and measurement of rocker arm shaft and rocker arm components.
Covers measurement of idler gear shaft and gear clearances.
Details measuring camshaft bearing clearance and lobe height.
Covers cylinder liner bore measurement, projection, and replacement procedures.
Details measurement of piston ring and groove clearance.
Explains how to measure piston ring gaps for different engine models.
Covers measurement of piston pin outside diameter and piston pin hole clearance.
Details connecting rod alignment and connecting rod small end bushing clearance.
Covers inspection and measurement of crankshaft journals, crankpins, and bearings.
Details inspection and replacement of flywheel ring gear and housing oil seal.
Explains the replacement procedure for the crankshaft front oil seal.
Details the steps for reassembling the piston and connecting rod assembly.
Provides steps for reassembling the cylinder head components.
Details the procedure for reassembling the rocker arm and shaft.
Illustrates and lists major engine components for reassembly steps I.
Illustrates and lists major engine components for reassembly steps II.
Details the left-hand side reassembly steps for external engine components.
Details the right-hand side reassembly steps for external engine components.
Covers engine tuning procedures after reassembly for optimal performance.
Provides a general overview of the engine's lubricating system and its components.
Details the disassembly steps for the oil pump assembly.
Covers disassembly and inspection/repair of the main oil filter.
Details disassembly and inspection/repair procedures for the oil cooler.
Provides a general overview of the engine's cooling system.
Details the disassembly steps for the water pump assembly.
Covers inspection and repair procedures for the engine thermostat.
Provides a general overview of the engine's fuel system components.
Covers disassembly, inspection, and reassembly of the fuel filter.
Details disassembly, inspection, and repair of the injection nozzle assembly.
Provides test conditions and calibration data for fuel injection pump adjustments.
Explains how to identify starter models using their identification plates.
Lists main data and specifications for starter motors.
Explains how to identify alternator models using their identification plates.
Lists main data and specifications for alternators.
Diagnoses issues related to engine starting problems and their causes.
Identifies causes and remedies for unstable engine idling.
Diagnoses causes of insufficient engine power and provides remedies.
Identifies causes of excessive fuel consumption and provides remedies.
Diagnoses causes of excessive oil consumption and provides remedies.
Identifies causes of engine overheating and provides remedies.
Diagnoses causes of white exhaust smoke and provides remedies.
Identifies causes of darkish exhaust smoke and provides remedies.
Diagnoses causes of low or no oil pressure and provides remedies.
Identifies causes of abnormal engine noises and provides remedies.
Lists special tools required for engine service, their part numbers, and relevant pages.
Provides conversion factors for length measurements from millimeters to inches.
Provides conversion factors for area measurements.
Provides conversion factors for volume measurements (US gal/Imp gal to liters).
Provides conversion factors for mass measurements (lbs to kg).
Provides conversion factors for pressure measurements (psi to kg/cm² and kPa).
Provides conversion factors for torque measurements (ft-lbs to kg-m and N-m).
Provides conversion factors for temperature measurements (Fahrenheit to Centigrade).
