Mitsubishi diesel engines, Service Manual, Page: 20 / 219

GENERAL
1 - 7
2. Specifications
Engine Type S3L S3L2 S4L S4L2
Type Water-cooled; 4-stroke cycle; Diesel powered
No. of cylinders 3 4
Combustion Swirl chamber type
Valve mechanism Overhead valve type
Cylinder bore
×
stroke mm (in.)
78
×
78.5
(3.07
×
3.09)
78
×
92
(3.07
×
3.62)
78
×
78.5
(3.07
×
3.09)
78
×
92
(3.07
×
3.62)
Total displacement
l
(U.S. gal)
1.125
(0.297)
1.318
(0.348)
1.500
(0.396)
1.758
(0.464)
Compression ratio 22.0 : 1
Fuel Diesel fuel (JIS K2204 Special 1 - 3)
Firing order 1-3-2 1-3-4-2
Direction of rotation Counterclockwise when viewed from the flywheel end
Overall length mm (in.) 536 (21.10) 620 (24.40)
Overall width mm (in.) 433 (17.04) 433 (17.04) Dimensions
Overall height mm (in.) 572 (22.52) 572 (22.52)
General
Dry mass kg (lb) 135 (297.6) 155 (341.7)
Piston ring No. of rings
Compression ring :2
Oil ring (w/expander) : 1
Open BTDC 15°
Inlet valve
Close ABDC 41°
Open BBDC 54°
Valve
timing
(hot engine) Exhaust valve
Close ATDC 10°
Engine mounting 4 mounts
Engine main p
a
rt
s
Starting method Starter
Type Bosch M
Manufacturer DENSO
Plunger
diameter
mm (in.)
φ
5.5 (0.21)
MS retard
(crank angle)
8°
Injection
pump
Cam lift mm(in.) 15 (0.59)
Governor Governing method Centrifugal fly-weight type
Type Throttle nozzle
Manufacturer Bosch Automotive Systems Corporation
Spray angle mm (in.) 15°
Injection
nozzle
Opening
pressure
MPa
(kgf/cm
2
)
[psi]
14.22 to 15.00 (145 to 153)
[2062 to 2176]
Fuel system
Fuel filter Type Paper-element cartridge; Separate type w/ cock
Lubrication method Forced circulation (pressure feed by trochoid pump)
Grade CD Class (API Classification)
Engine oil Capacity
(entire engine)
l
(U.S. gal)
3.7 (1.0) 4.2 (1.1) 5.4 (1.4) 6.0 (1.6)
Type Gear pump
Oil pump
Displacement
l
(U.S. gal)
/min
18 (4.8)
Type Piston valve
Relief valve Opening
pressure
MPa
(kgf/cm
2
)
[psi]
0.35
±
0.05 (3.6
±
0.5)
[51 ± 7]
Oil system
Oil filter Type Paper element (spin-on type)