engine MITSUBISHI MONTERO 2000 Service Owner's Manual

ENGINE <4D5> -General Information11B-2
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 systemDistribution type injection pump
Rocker armRoller type
Adjusting screwElephant foot type


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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 <Reference>8.0 - 8.5–
A/C compressor drive beltVibration frequency Hz157 - 176–
(When adjustment)Tension N260 - 325–
Deflection mm <Reference>8.0 - 8.5–
A/C compressor drive beltVibration frequency Hz192 - 208–
(When replacement)Tension N390 - 450–
Deflection mm <Reference>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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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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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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ENGINE <4M4>
Click on the applicable bookmark to selected the required model year.


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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> -General Information/Service Specifications11C-2
GENERAL INFORMATION
Items4M41
Total displacement mL3,200
Bore´Stroke mm98.5´105.0
Compression ratio17.0
Camshaft arrangementDOHC
Number of valveIntake8
Exhaust8
Valve timingIntakeOpeningBTDC 13_
ClosingABDC 31_
ExhaustOpeningBBDC 55_
ClosingATDC 17_
Fuel systemDistribution type injection pump
Rocker armRoller type
SERVICE SPECIFICATIONS
ItemsStandard valueLimit
Alternator drive beltVibration frequency Hz122 - 161–
(When inspection)Tension N207 - 363–
Deflection mm <Reference>8-11–
Alternator drive beltVibration frequency Hz122 - 136–
(When adjustment)Tension N207 - 259–
Deflection mm <Reference>10 - 11–
Alternator drive beltVibration frequency Hz149 - 161–
(When replacement)Tension N311 - 363–
Deflection mm <Reference>8-9–
A/C compressor drive beltVibration frequency HzA177 - 191–
(When inspection)B145 - 156–
Tension NC343 - 392–
Deflection mm
<Reference>C7.5 - 8.5–
A/C compressor drive beltVibration frequency HzA177 - 191–
(When adjustment)B145 - 156–
Tension NC343 - 392–
Deflection mm
<Reference>C7.5 - 8.5–
A/C compressor drive beltVibration frequency HzA177 - 191–
(When replacement)B145 - 156–
Tension NC490 - 539–
Deflection mm
<Reference>C6.0 - 6.5–


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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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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.)
<Post-installation operation>
DFuel Line Air-bleeding
(Refer to GROUP 13C - On-vehicle Service.)
<Post-installation operation>
DDrive Belt TensionCheck and Adjustment
(Refer to P.11C-5.)<Post-installation operation>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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ENGINE <4M4> -Cylinder Head Gasket11C-32
"
DA
RADIATOR LOWER HOSE/RADIATOR UPPER
HOSE CONNECTION
1. Insert the hose up to the convex part of the thermostat
cover and water outlet pipe.
2. Align the mating marks on the radiator hose and the
hose clamp, and then install the hose.


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