Mitsubishi Motors 4G1 - Manual (Page 5)

4G1 ENGINE (E - W) - General Information
11A-0-5
PWEE9520
E
Nov. 1995 Mitsubishi Motors Corporation
Descriptions 4G13 12-VALVE-CARBURETOR 4G13 12-VALVE-MPI
Type In-line OHV, SOHC In-line OHV, SOHC
Number of cylinders 4 4
Combustion chamber Pentroof type Pentroof type
Total displacement dm 3 1,299 1,299
Cylinder bore mm 71.0 71.0
Piston stroke mm 82.0 82.0
Compression ratio 9.5 9.5
Number of Intake 8 8
valves
Exhaust 4 4
Valve timing Intake opens BTDC 14_ BTDC 19_
Intake closes ABDC 48_ ABDC 43_
Exhaust opens BBDC 55_ BBDC 60_
Exhaust closes ATDC 13_ ATDC 8_
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
PWEE9520-A
E
Dec. 1998 Mitsubishi Motors Corporation Revised