4G9 ENGINE (E–W)General Information

11A-0-5

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 dm3

 

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

Opens

2_

15_

 

 

valve

(BTDC)

 

 

 

 

 

 

 

 

 

 

 

Closes

58_

51_

 

 

 

(ABDC)

 

 

 

 

 

 

 

 

 

 

Exhaust

Opens

58_

55_

 

 

valve

(BBDC)

 

 

 

 

 

 

 

 

 

 

 

Closes

10_

15_

 

 

 

(ATDC)

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

E Mitsubishi Motors Corporation

Mar. 2001

PWEE9502-I

Revised