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4G9 ENGINE (E-W) -
General Information
11A-0-3
PWEE9502-C
E
July 1997MitsubishiMotors Corporation Revised
GENERAL INFORMATION
4G92
Descriptions 4G92-SOHC 4G92-DOHC-MIVEC
Type In-line OHV, SOHC In-line OHV, DOHC
Number of cylinders 4 4
Combustion chamber Pentroof type Pentroof type
Total displacement dm
3
1,597 1,597
Cylinder bore mm 81.0 81.0
Piston stroke mm 77.5 77.5
Compression ratio 10.0 11.0
Valve timing Intake
valve
Opens
(BTDC)
20
_
,14
_
* 17
_
(Low-speed cam)
47.5
_
(High-speed cam)
Closes
(ABDC)
42
_
,58
_
* 31
_
(Low-speed cam)
72.5
_
(High-speed cam)
Exhaust
valve
Opens
(BBDC)
54
_
,52
_
* 41
_
(Low-speed cam)
70
_
(High-speed cam)
Closes
(ATDC)
2
_
,16
_
* 11
_
(Low-speed cam)
35
_
(High-speed cam)
Lubrication system Pressure feed, full-flow filtration Pressure feed, full-flow filtration
Oil pump type Trochoid type Trochoid type
Cooling system Water-cooled forced circulation Water-cooled forced circulation
Water pump type Centrifugal impeller type Centrifugal impeller type
*: LANCER for general export and CARISMA for 6B model