Mitsubishi 4G1 series

4G1 ENGINE (E–W) – General Information
11A-0-6
PWEE9520
E
Nov. 1995Mitsubishi Motors Corporation
Descriptions 4G13 16-VALVE–CARBURETOR 4G13 16-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 10, 9.5*
1
Number of
valves
Intake 8 8
va
l
ves
Exhaust 8 8
Valve timing Intake opens BTDC 12_ BTDC 17_
Intake closes ABDC 48_ ABDC 39_
Exhaust opens BBDC 48_ BBDC 49_
Exhaust closes ATDC 12_ ATDC 7_
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
*
1
: LANCER for General Export
PWEE9520-E
E
Feb. 2001Mitsubishi Motors Corporation Revised