Mitsubishi Motors 4G9 - Manual (Page 5)

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4G9 ENGINE (E–W) – General Information
11A-0-5
PWEE9502-C
E
July 1997 Mitsubishi Motors Corporation Revised
4G94
Descriptions 4G94–SOHC 4G94–DOHC–GDI
Type In-line OHV, SOHC In-line OHV, DOHC
Number of cylinders 4 4
Combustion chamber Pentroof type Pentroof type
Total displacement dm 3 1,999 1,999
Cylinder bore mm 81.5 81.5
Piston stroke mm 95.8 95.8
Compression ratio 9.5 10.6
Valve timing Intake
valve Opens
(BTDC) 2 _ 15 _
Closes
(ABDC) 58
_
51
_
Exhaust
valve Opens
(BBDC) 58
_
55
_
Closes
(ATDC) 10
_
15
_
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
PWEE9502-I
E
Mar. 2001 Mitsubishi Motors Corporation Revised