Page 33 of 1839

GENERAL -Precautions Before Service00-32
Other precautions:
DAvoid prolonged and repeated contact with oils,
particularly used engine oils.
DWear protective clothing, including impervious gloves
where practicable.
DAvoid contaminating clothes, particularly underpants, with
oil.
DDo not put oily rags in pockets, the use of overalls without
pockets will avoid this.
DDo not wear heavily soiled clothing and oil-impregnated
foot-wear. Overalls must be cleaned regularly and kept
separately from personal clothing.
DWhere there is a risk of eye contact, eye protection should
be worn, for example, chemical goggles or face shields;
in addition an eye wash facility should be provided.
DObtain First Aid treatment immediately for open cuts and
wounds.
DWash regularly with soap and water to ensure all oil is
removed, especially before meals (skin cleansers and
nail brushes will help). After cleaning, the application of
preparations containing lanolin to replace the natural skin
oils is advised.
DDo not use petrol, kerosine, diesel fuel, gas oil, thinners
or solvents for cleaning skin.
DUse barrier creams, applying them before each work
period, to help the removal of oil from the skin after work.
DIf skin disorders develop, obtain medical advice without
delay.
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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 90 of 1839

ENGINE <4D5> -Service Specifications/Sealants11B-3
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
A/C compressor drive beltVibration frequency Hz157 - 176–
(When inspection)Tension N260 - 325–
Deflection mm 8.0 - 8.5–
A/C compressor drive beltVibration frequency Hz157 - 176–
(When adjustment)Tension N260 - 325–
Deflection mm 8.0 - 8.5–
A/C compressor drive beltVibration frequency Hz192 - 208–
(When replacement)Tension N390 - 450–
Deflection mm 6.5 - 7.0–
Valve clearance (at hot) mm0.25-
Injection timing (Value indicated on dial gauge mm)9_ATDC (1±0.03)-
Idle speed r/min750±100-
Compression pressure kPa (at engine speed of 280 r/min)3,040Min. 2,256
Compression pressure difference of all cylinder (at engine speed of 280
r/min) kPa-Max. 294
Timing belt tension mm4-5
Timing belt B tension mm4-5
SEALANTS
ItemsSpecified sealantRemarks
Oil panMITSUBISHI GENUINE PART
MD970389 or equivalentSemi-drying sealant
Semi-circular packing and rocker
cover gasket seal, and cylinder head
seal3M ATD Part No. 8660 or equivalent
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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 154 of 1839
ENGINE <4M4> -On-vehicle Service11C-13
8. If there is a cylinder which compression or compression
difference is outside the limit, pour a small amount of
engine oil through the glow plug hole, and repeat the
operations in steps 6 - 7.
(1) If the compression increases after the oil is added,
the cause of the malfunction is a worn or damaged
piston ring and /or cylinder inner surface.
(2) If the compression does not rise after the oil is added,
the cause is a burnt or defective valve seat, or pressure
is leaking from the gasket.
9. Connect the fuel cut solenoid valve connector.
10. Install the glow plugs.
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