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Mitsubishi S4E User Manual

Mitsubishi S4E
176 pages
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Mitsubishi S4E Specifications

General IconGeneral
Engine ModelS4E
Cylinders4
AspirationNaturally Aspirated
Fuel SystemIndirect injection
Cooling SystemWater-cooled
Engine Type4-stroke

Summary

FOREWORD

NOTES, CAUTIONS and WARNINGS

Defines the meaning and usage of NOTES, CAUTIONS, and WARNINGS in the manual for critical instructions.

CONSTRUCTION AND FUNCTION

SERVICE GUIDE

Provides a schedule for periodical servicing and general engine information.

Description

Introduces the engine's overall structure and purpose.

Views and Sections

Illustrates the engine's left-side, right-side, longitudinal, and transverse cross-sections.

Specifications

Details the engine's technical specifications, dimensions, and performance data.

Performance Curves

Presents engine performance curves for output, torque, and fuel consumption.

Crankcase

Describes the engine's crankcase, its construction, and bearing types.

Cylinder head

Explains the cylinder head's construction, precombustion chambers, and gasket.

Main moving parts

Details components like crankshaft, flywheel, ring gear, pistons, and connecting rods.

Timing gear train

Covers the timing gears, camshaft, tappets, and valve timing.

Lubrication system

Explains the engine's lubrication system, including oil pump and strainer.

Fuel system

Details the fuel circuit, feed pump, filter, injection pump, and governor.

Cooling system

Describes the cooling system components like radiator, water pump, and thermostat.

Electrical equipment

Covers the starter motor, alternator, and regulator unit specifications.

MAINTENANCE AND ADJUSTMENT

Inspection and Adjustment of Engine Proper

Covers general engine inspection, valve clearance, and fan belt tension.

Valve Clearance Adjustment

Details the procedure for checking and adjusting valve clearance.

Crankcase Inspection

Explains how to inspect the crankcase for cracks, wear, and flatness.

Cylinder Sleeve Inspection and Replacement

Covers inspection of cylinder sleeves for wear and procedures for replacement.

Main Bearing Inspection

Details inspection of main bearings for wear, damage, and radial clearance.

Tappet and Tappet Hole Inspection

Covers inspection of tappets and tappet holes for wear and clearance.

Camshaft Hole Inspection

Explains inspection of camshaft holes for wear and damage.

Valves and Valve Seat

Covers inspection of valves, valve seats, and replacement procedures.

Rocker Arm and Rocker Shaft Inspection

Details inspection of rocker arms and shafts for wear and clearance.

Crankshaft Inspection

Covers inspection of crankshaft journals and crankpins for wear and runout.

Pistons and Piston Rings

Explains inspection of pistons, rings, and clearance in the bore.

Connecting Rod Alignment and Big-End Bearings

Details inspection of connecting rods for alignment and big-end bearings.

Flywheel Inspection

Covers inspection of the flywheel for friction surface flatness and runout.

Timing Mechanism Inspection

Explains inspection of camshaft gear, injection pump gear, and idler gear.

Fuel System Maintenance

Covers fuel filter and fuel feed pump inspection procedures.

Injection Pump Inspection

Details inspection of pumping elements, delivery valves, and control rack.

Governor Testing and Adjustment

Provides procedures for governor testing, adjustment, and characteristic curves.

Injection Timing Adjustment

Covers pre-stroke and beginning of injection timing adjustments.

Tappets

Explains inspection of tappets, rollers, and their clearances.

Governor characteristic

Describes governor characteristics and adjustment procedures.

Bench Tests

Outlines procedures for engine break-in, performance tests, and output tests.

DISASSEMBLY AND REASSEMBLY

Hints for Disassembly-Reassembly

Provides general tips for orderly and safe disassembly and reassembly procedures.

Rocker Arms and Rocker Shaft

Details the removal and installation of rocker arms and rocker shaft assembly.

Cylinder head

Covers the removal and installation procedures for the cylinder head.

Timing Gears

Explains the removal and installation of timing gears.

Oil Filter Removal and Installation

Details the procedures for removing and installing the engine oil filter.

Oil Pump Removal

Covers the removal of the engine oil pump assembly.

Water Pump Removal

Details the procedures for removing the water pump assembly.

Flywheel and Ring Gear

Explains the separation and installation of the flywheel and ring gear.

Starter

Covers the removal and installation procedures for the starter motor assembly.

Injection Nozzles

Details the removal, installation, and testing of injection nozzles.

Injection Pump and Governor

Covers removal and installation of the injection pump and governor assembly.

Feed Pump Disassembly and Reassembly

Details the disassembly and reassembly of the fuel feed pump.

Governor Disassembly

Outlines the steps for disassembling the RSV governor.

Injection Pump Disassembly, Inspection and Reassembly

Provides detailed procedures for disassembling, inspecting, and reassembling the injection pump.

Engine Proper

Covers disassembly of major engine components like oil pan and camshaft.

Alternator and Regulator Unit

Details the removal and installation of the alternator and regulator unit.

MAINTENANCE STANDARDS

General Standards

Provides standard and repair limits for engine parts like pistons, connecting rods, and crankshaft.

Tightening Torque

Lists specified tightening torque values for various engine bolts and nuts.

Application of Sealers

Specifies sealers to be used for main bearing caps and side seals.

TROUBLESHOOTING

TROUBLESHOOTING CHART (1)

Diagnostic chart correlating complaints with possible causes and remedies.

TROUBLESHOOTING CHART (2)

Diagnostic chart for fuel system and injection quantity related issues.

SPECIAL SERVICE TOOLS

Tool Application Chart

Lists special tools and their corresponding applications.

Valve Guide Installer and Remover

Details tools for installing and removing valve guides.

Valve Seat Caulking Tools

Describes tools for installing and caulking valve seats.

Adaptor

Describes adaptor for test pressure gauge installation.

Idler Shaft Puller

Details the idler shaft puller tool and its usage.

Cranking Handle

Describes the cranking handle for turning the crankshaft.

Socket

Describes the socket tool for tightening bolts on camshaft and rocker brackets.

Puller Assembly

Details the puller assembly for removing various gears and pulleys.

Piston Ring Tool

Describes the tool for fitting and removing piston rings.

Idler Bushing Puller

Details the tool for removing and installing idler bushing.

Adaptors

Describes adaptors for idler and camshaft bushing removal/installation.

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