Mitsubishi S4S

2. Specifieations
GENERAL
Model designation
S4S
S4S-DT
Type
Water-cooled, 4-stroke cycle
No. of cylinders
- arrangement
4- in line
Combustion chamber type
Swirl chamber
Direct injection
Valve mechanism
Overhead
Cylinder bore
x stroke
mm[in.] 94
x 120 [3.70 x 4.72]
Piston displacement liter [cu in.]
3.331 [203]
";J
Compression ratio
22: 1
17: 1
...
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I:
Firing order
1-3-4-2
<Ll
0
Direction of rotation
Counterclockwise as viewed from flywheel side
Overall1ength
781 [30.7]
mm[in.]
Dimension
Overall width
593 [23.3]
mm[in.]
Overall height
710 [28.0]
821 [32.3]
mm[in.]
Weight (dry)
kg [Ib]
245 [540] 250[551]
Type of cylinder sleeve
Integral with cylinder block
Ol:>
No. of piston ring
Compression ring
2
~
0..
Oilring
1 (w/spring expander)
I:
Open BTDC 30° BTDC 18°
.e;
InIet valve
a
<Ll
Valve timing
Close
ABDC 50°
ABDC 54°
I:
·So
Open BBDC 74°
BBDC 66°
I:
Exhaust valve
p:l
Close ATDC 30°
ATDC 22°
Starting system
Electric-starter
Starting aid
G10wplugs
"0_",
Air cleaner Type
Paper-element
§~e
"t).2 *
Turbocharger
Model TD04HL
-><>-.
-
~lUtI'.:l
Type
Force feed by oil pump
Specification
Class CD oil (API Service Classification)
Engine oil
Capacity (engine) Approx. 10 [2.6]
liter [U.S. gal] (Oil pan: 9 [2.4], Filter: 1 [0.3])
Type
Trochoid
a
Speedratioto crankshaft
0.74
~
Oil pump
Ol:>
Capacity
28.6 [7.6] at 0.3MPa (3 kgf/cm") discharge pressure
;>,
Ol:>
I:
liter [U.S gal] of pump running at 2 230 min:'
0
.~
Type
Piston valve
u
·C
Re1ief va1ve
Opening pressure
..0
::l
0.35 ± 0.05 (3.5±0.5) [50±7]
....:l
MPa (kgf/cm") [psi]
Oil Cooler
I
Water-cooled
Type
-
multi-plate
Oil filter
Type Cartridge of paper element
Safety valve
Opening pressure
-
I
1.1 (11) [156]
MPa (kgf/cm") [psi]
1-7