Mitsubishi Motors 4G9 - Manual (Page 3)

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4G9 ENGINE (E - W) - General Information
11A-0-3
PWEE9502-C
E
July 1997 Mitsubishi Motors 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