SPECIFICATIONS - CHECK
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
12
Pub. No. 291Y1-40720 Revision: 5
SPECIFICATIONS - CHECK
Main Specifications
Table 1 Main Specifications
Engine model S12R
Type Water-cooled, 4-cycle stroke, turbocharged, with air cooler
No. of cylinders - Arrange-
ment
12-V
Cylinder bore x stroke 170 × 180 mm [6.69 × 7.09 in.]
Total displacement 49.03 L [2992.45 cu in.]
Combustion system Direct injection system
Compression ratio 13.5 : 1, 14.0 : 1, 14.5 : 1, 15.5 : 1
Firing order 1 - 12 - 5 - 8 - 3 - 10 - 6 - 7 - 2 - 11 - 4 - 9
Direction of rotation Counterclockwise as viewed from flywheel side
Damper Double damper, damper with spacer
Fuel injection pump Mitsubishi PS6 type
Fuel injection nozzle Hole type
Fuel injection starting
pressure
34.3 MPa {349.76 kgf/cm
2
} [4974.80 psi]
Fuel filter Paper element type
Lubricating method Forced lubrication (pressure feed by oil pump)
Oil filter Paper element type
Oil cooler Water-cooled, multi-plate type
Cooling method Forced water cooling
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