Page 3 of 1839

GENERAL -How to Use This Manual00-2
HOW TO USE THIS MANUAL
SCOPE OF MAINTENANCE, REPAIR
AND SERVICING EXPLANATIONS
This manual provides explanations, etc. concerning
procedures for the inspection, maintenance, repair
and servicing of the subject model. Note, however,
that for engine and transmission-related component
parts, this manual covers only on-vehicle
inspections, adjustments, and the removal and
installation procedures for major components.
For detailed information concerning the inspection,
checking, adjustment, disassembly and reassembly
of the engine, transmission and major components
after they have been removed from the vehicle,
please refer to separate manuals covering the
engine and the transmission.
ON-VEHICLE SERVICE
“On-vehicle Service” is procedures for performing
inspections and adjustments of particularly
important locations with regard to the construction
and for maintenance and servicing, but other
inspection (for looseness, play, cracking, damage,
etc.) must also be performed.
INSPECTION
Under this title are presented inspection and
checking procedures to be performed by using
special tools and measuring instruments and by
feeling, but, for actual maintenance and servicing
procedures, visual inspections should always be
performed as well.
DEFINITION OF TERMS
STANDARD VALUE
Indicates the value used as the standard for judging
the quality of a part or assembly on inspection
or the value to which the part or assembly is
corrected and adjusted. It is given by tolerance.
LIMIT
Shows the standard for judging the quality of a
part or assembly on inspection and means the
maximum or minimum value within which the part
or assembly must be kept functionally or in strength.
It is a value established outside the range of
standard value.
REFERENCE VALUE
Indicates the adjustment value prior to starting the
work (presented in order to facilitate assembly and
adjustment procedures, and so they can be
completed in a shorter time).
CAUTION
Indicates the presentation of information particularly
vital to the worker during the performance of
maintenance and servicing procedures in order to
avoid the possibility of injury to the worker, or
damage to component parts, or a reduction of
component or vehicle function or performance, etc.
INDICATION OF TIGHTENING TORQUE
Tightening torques (units: N×m) are set to take into
account the central value and the allowable
tolerance. The central value is the target value,
and the allowable tolerance provides the checking
range for tightening torques. If bolts and nuts are
not provided with tightening torques, refer to
P.00-39.
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Page 56 of 1839
11A-2
ENGINE <6G7>
CONTENTS
GENERAL INFORMATION 3..................
SERVICE SPECIFICATIONS 3.................
SEALANT 4..................................
SPECIAL TOOLS 4..........................
ON-VEHICLE SERVICE 6.....................
Drive Belt Tension Check and Adjustment 6......
Auto-tensioner Check 6.........................
Ignition Timing Check 6........................
Idle Speed Check 7............................
Idle Mixture Check 8...........................Compression Pressure Check 9.................
Intake Manifold Vacuum Check 10...............
Lash Adjuster Check 10........................
OIL PAN AND OIL SCREEN 13..............
TIMING BELT 15............................
CRANKSHAFT OIL SEAL 23.................
CAMSHAFT OIL SEAL 25...................
CYLINDER HEAD GASKET 27...............
ENGINE ASSEMBLY 30.....................
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Page 88 of 1839

11B-1
ENGINE <4D5>
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 3.................
SEALANTS 3................................
SPECIAL TOOLS 4..........................
ON-VEHICLE SERVICE 5.....................
Drive Belt Tension Check and Adjustment 5......
Auto-tensioner check 7.........................
Valve Clearance Check and Adjustment 8........
Injection Timing Check and Adjustment 9........
Idle Speed Check and Adjustment 12............
Idle-up Mechanism Check and
Adjustment-For A/C 12.........................Compression Pressure Check 13................
Timing Belt Tension Adjustment 14..............
Timing Belt B Tension Adjustment 15............
OIL PAN AND OIL SCREEN 17..............
TIMING BELT AND TIMING BELT B 19......
CRANKSHAFT OIL SEAL 25.................
CAMSHAFT AND CAMSHAFT OIL SEAL 27..
CYLINDER HEAD GASKET 30...............
ENGINE ASSEMBLY 34.....................
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Page 124 of 1839
11B-1
ENGINE <4D5>
CONTENTS
GENERAL 2.................................
Outline of Changes 2...........................
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 2.................
SEALANT 2..................................
SPECIAL TOOLS 3...........................ON-VEHICLE SERVICE 4.....................
Injection Timing Check and Adjustment 4.........
Idle Speed Check 4............................
OIL PAN AND OIL SCREEN 5................
TIMING BELT AND TIMING BELT B 7........
CYLINDER HEAD GASKET 13................
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Page 125 of 1839

ENGINE <4D5> -General/General Information/Service Specifications/Sealant11B-2
GENERAL
OUTLINE OF CHANGES
Some service procedures have been revised as the following changes have been made to comply to
the Emission Regulation StepIII.
DInjection timing and idle speed check and adjustment have bee changed as the electronic-controlled
fuel injection pump has been introduced.
DThe oil pan has a cover in order to reduce noise due to an enhanced engine output.
DA crank angle sensor and crankshaft sensing blade have been added due to the introduction of
an electronic-controlled fuel injection pump. Due to this change, the timing belt front lower cover
has been reshaped.
DThe tightening torque of the cylinder head bolts and the cylinder head gasket have been changed.
GENERAL INFORMATION
Items4D56
Total displacement mL2,477
Bore x Stroke mm91.1 x 95.0
Compression ratio21
Combustion chamberVortex chamber type
Camshaft arrangementSOHC
Number of valveIntake4
Exhaust4
Valve timingIntakeOpeningBTDC 20_
ExhaustClosingABDC 49_
IntakeOpeningBBDC 55_
ExhaustClosingATDC 22_
Fuel systemElectronically controlled type injection pump
Rocker armRoller type
Adjusting screwElephant foot type
SERVICE SPECIFICATIONS
ItemsStandard value
Idle speed r/min750±30
Timing belt tension mm4-5
Timing belt B tension mm4-5
SEALANT
ItemsSpecified sealantRemarks
Oil panMITSUBISHI GENUINE PART
MD970389 or equivalentSemi-drying sealant
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Page 142 of 1839
11C-1
ENGINE <4M4>
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 2.................
SEALANTS AND ADHESIVES 3..............
SPECIAL TOOLS 3..........................
ON-VEHICLE SERVICE 5.....................
Drive Belt Tension Check and Adjustment 5......
Valve Clearance Check and Adjustment 8........
Injection Timing Check and Adjustment 9........
Idle Speed Check 12...........................Compression Pressure Check 12................
OIL PAN 14.................................
VACUUM PUMP 16..........................
TIMING CHAIN 17...........................
CRANKSHAFT OIL SEAL 21.................
CAMSHAFT 23..............................
CYLINDER HEAD GASKET 27...............
ENGINE ASSEMBLY 33.....................
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ENGINE <4M4> -Cylinder Head Gasket11C-27
CYLINDER HEAD GASKET
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
DEngine Coolant Drain and Refill
(Refer to GROUP 14 - On-vehicle Service.)
DEngine Oil Check andRefill
(Refer to GROUP 12 - On-vehicle Service.)
DFuel Line Air-bleeding
(Refer to GROUP 13C - On-vehicle Service.)
DDrive Belt TensionCheck and Adjustment
(Refer to P.11C-5.)DCamshaft Removal and Installation
(Refer to P.11C-20.)
DCooling Fan and Fan Clutch Assembly Removal and
Installation (Refer to GROUP 14.)
DIntake Manifold Removal and Installation
(Refer to GROUP15.)
DTurbocharger Removal and Installation
(Refer to GROUP15.)
DExhaust Manifold Removal and Installation
(Refer to GROUP15.)
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Page 202 of 1839
12-1
ENGINE
LUBRICATION
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 3.................
SEALANT 3..................................
LUBRICANTS 3..............................
SPECIAL TOOLS 3..........................ON-VEHICLE SERVICE 4.....................
Engine Oil Check 4............................
Engine Oil Replacement 4......................
Oil Filter Replacement 5........................
Oil Pressure Check 6..........................
ENGINE OIL COOLER 9.....................
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