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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Page 168 of 1839
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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Page 205 of 1839
O
N-V EH IC LE SER VIC E
E N G IN E OIL CHEC K
1 . Pull out th e le ve l gauge slo w ly and ch eck th at th e oil
l e ve l is in th e illu str a te d ra nge.
2 . Check th at th e oil is not exce ssiv e ly dir ty , th at th ere is
n o co ola nt or petr o l m ix e d in , and th at it has su ff ic ie nt
v is co sit y .
E N G IN E OIL REPLA CEM EN T
1 . Sta rt th e engin e and allo w it to warm up until th e
t e m pera tu re of th e co ola nt re ach es 80 _C to 90 _C .
2 . Rem ove th e engin e oil fille r ca p.
3 . Rem ove th e dra in plu g to dra in oil.
C au tio n
U se care as oil co uld be hot.
4 . In sta ll a new dra in plu g gaske t so th at it fa ce s in th e
d ir e ctio n sh ow n in th e illu str a tio n, and th en tig hte n th e
d ra in plu g to th e sp ecif ie d to rq ue.
N O TE
I n sta ll th e dra in plu g gaske t so it fa ce s in th e dir e ctio n
s h ow n in th e illu str a tio n. <
4M 4> <
4D 5> O
il p an sid e O
il p an sid e D
ra in plu g gask e t