Mitsubishi Pajero Pinin. Manual — part 10
ENGINE
<4G9-GDI>
Click on the applicable bookmark to selected the required model year
11A-1
ENGINE
<4G9-GDI>
CONTENTS
GENERAL INFORMATION
2
. . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS
2
. . . . . . . . . . . . . . . . .
SEALANTS
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS
4
. . . . . . . . . . . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE
6
. . . . . . . . . . . . . . . . . . . . .
Drive Belt Tension Check and Adjustment
6
. . . . . .
Ignition Timing Check
9
. . . . . . . . . . . . . . . . . . . . . . . . .
Idle Speed Check
10
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Idle Mixture Check
10
. . . . . . . . . . . . . . . . . . . . . . . . . .
Compression Pressure Check
11
. . . . . . . . . . . . . . . . .
Manifold Vacuum Check
12
. . . . . . . . . . . . . . . . . . . . .
Lash Adjuster Check
13
. . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT PULLEY
16
. . . . . . . . . . . . . . . . . . .
CAMSHAFT AND CAMSHAFT OIL SEAL
17
. . .
OIL PAN
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKSHAFT OIL SEAL
23
. . . . . . . . . . . . . . . . . .
CYLINDER HEAD GASKET
25
. . . . . . . . . . . . . . . .
TIMING BELT
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE ASSEMBLY
33
. . . . . . . . . . . . . . . . . . . . . .
ENGINE <4G9-GDI> –
General Information/Service Specifications
11A-2
GENERAL INFORMATION
Items
4G93-GDI
Total displacement m
ȏ
1,834
Bore
×
Stroke mm
81
×
89
Compression ratio
12.0
Combustion chamber
Pentroof + ball-in-piston
Camshaft arrangement
DOHC
Number of valve
Intake
8
Exhaust
8
Valve timing
Intake
Opening
BTDC 15
_
Closing
ABDC 56
_
Exhaust
Opening
BBDC 55
_
Closing
ATDC 15
_
Fuel system
Electronically controlled multipoint fuel injection
Rocker arm
Roller type
Auto-lash adjuster
Equipped
SERVICE SPECIFICATIONS
Items
Standard value
Limit
Alternator drive belt tension
(When checked)
Vibration frequency Hz
143 – 185
–
(When checked)
Tension N
294 – 490
–
Deflection (Reference value) mm
9.7 – 12.9
–
Alternator drive belt tension
(When adjusted)
Vibration frequency Hz
155 – 175
–
(When adjusted)
Tension N
343 – 441
–
Deflection (Reference value) mm
10.5 – 12.0
–
Alternator drive belt tension
(When replaced)
Vibration frequency Hz
203 – 234
–
(When replaced)
Tension N
588 – 784
–
Deflection (Reference value) mm
6.7 – 8.5
–
ENGINE <4G9-GDI> –
Service Specifications/Sealants
11A-3
Items
Limit
Standard value
Power steering oil pump and
A/C compressor drive belt
Vibration frequency Hz
114 – 139
–
A/C compressor drive belt
tension (When checked)
Tension N
392 – 588
–
(
)
Deflection (Reference value) mm
10.0 – 12.0
–
Power steering oil pump and
A/C compressor drive belt
Vibration frequency Hz
121 – 133
–
A/C compressor drive belt
tension (When adjusted)
Tension N
441 – 539
–
(
j
)
Deflection (Reference value) mm
10.0 – 11.0
–
Power steering oil pump and
A/C compressor drive belt
Vibration frequency Hz
145 – 166
–
A/C compressor drive belt
tension (When replaced)
Tension N
637 – 834
–
(
)
Deflection (Reference value) mm
7.0 – 9.0
–
Basic ignition timing
5
_
BTDC
±
3
_
–
Ignition timing
Approx. 16
_
BTDC*
1
–
Idle speed r/min
600
±
50*
1
–
CO contents %
0.6 or less
–
HC contents ppm
200 or less
–
Compression pressure kPa – r/min
1,720 – 300
1,337 – 300
Compression pressure difference of all cylinder kPa
–
Max. 100
Intake manifold vacuum kPa
–
Min. 60*
2
Cylinder head bolt shank length mm
–
96.4
Auto-tensioner push rod movement mm
Within 1
–
Timing belt tension torque Nm (Reference value)
2.5 – 4.0
–
Auto-tensioner rod protrusion amount mm
3.8 – 4.5
–
NOTE
*
1
: Indicates the value measured within 4 minutes since the engine was started.
*
2
: Indicates the value when more than 4 minutes have passed since the engine was started.
SEALANTS
Items
Specified sealants
Remarks
Beam camshaft cap
Cylinder head
3M ATD Part No.8660 or equivalent
–
Cam position sensor support
Oil pan
MITSUBISHI GENUINE PART
MD970389 or equivalent
Semi-drying sealant
Thrust case
Flywheel or drive plate bolt
3M Stud Locking 4170 or equivalent
–
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