SPC-S4L-094A(3/7) 1. Principal Particulars of Diesel Engine

General Specification

Standard

Engine assy numberModel Mitsubishi S4L2

Regulations No emission type

Type

Number of cylinders 4Bore × Stroke 78mm × 92mmPiston displacement 1.758 litersCompression ratio 22 : 1RotationFiring order 1-3-4-2Engine weight(Dry) Approx. 155kgDimensions(Length) Approx. 645mm (Width) Approx. 440mm (Height) Approx. 572mmInclination(Continuous) 15° (Temporary) 30°(Max. 30 min.)FuelLubricating oilOutput(Without fan) Spec.Rating Rating at delivery

Breaking in around 50hr Breaking in around 0.25hrSt-by;28.5kW{38.7PS}/2970rpm St-by;27.1kW{36.8PS}/2970rpmPrime;25.0kW{34.0PS}/2970rpm

Tolerance ±5% of nominalIdling engine speed 1000 25rpmSpeed regulationRating conditions ISO 15550

Total barometric pressure : 100kPaAir temperature : 298KRelative humidity : 30%

Fuel consumption

Tolerance ±8%Oil consumptionFuel injection timing 19°BTDCMean effective pressurePiston speed 9.1m/s at 2970rpm

Fuel system

Fuel injection pump In-Line type(ND-PFR M type)Fuel injection nozzle Throttle typeGovernor Mechanical centrifugal typeFuel filter Filtering paper typeMin. required fuel feeding head 100mmMax.static head of leakpipe(return)

200mmHg

(Without Fan, after breaking in)

All items, unless otherwise specified, are in accordance with JIS andmaker's standards

S4L2-61SDH-NP2

4 cycle water-cooled, vertical overhead valve, cylinder in line, swirlchamber type

Anti-Clockwise rotation as viewed from flywheel side

(MHI No. 31N00-06070 1/2-CHG-2, 2/2-CHG-1)

31N88-51010

Steady state speed regulation at rated speed, within 5%

0.50MPa{5.1kgf/cm2} at Prime output

ASTM diesel fuel oil No.2-D(JIS K2204 gas oil specification No.2 or 3)API classification service CF or CH-4 class

(With Fan St-by;25.1kW{34.1PS}/2970rpm)(With Fan Prime,21.6kW{29.4PS}/2970rpm)

Approx. 278g/kW-h{204g/PS-h}at Prime output

Approx.0.1 0.3% of fuel consumption<Reference value> Full load, Rated speed

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SPC-S4L-094A(4/7) Lubricating system

Lubricating systemLubricating oil filter Filtering paper type, full flowOil pressure

Oil capacity

Oil dipstick Standard dipstickOil pressure switch YesOil pressure unit No

Cooling system

Cooling systemEngine water capacity Approx. 2.5 litersCooling fan 380mm diameter, 6 blades, pusherWater pump pulley PCD 96mmPulley ratioFan spacer 10mm thicknessWater temp. switch YesThermo. Unit NoThermostat

Electrical system

Alternator 12V - 50AVoltage regulator IC type (Built in alternator)Ragulator set voltage 14.7 0.3VAlternator pulley PCD 65mmStarting system Electric startingStarter motor 12V-1.7kWGlow plugEngine shut off system Electric solenoid (ETR)

Intake and Exhaust system

Intake manifold(cover)Exhaust manifold Upper side wayInduction Resistance Max 1.96kPa{200mmH20}Exhaust Back Pressure Max 6.57kPa{670mmH20}

<Remarks> Engine color Black(MHI standard color)FlywheelFlywheel housing SAE #5

11V,13A x 4

7-1/2 inch

Open at 76.5deg.C - full open at 90deg.C

0.29MPa~0.39MPa{3~4kgf/cm2} at duty run0.098MPa{1.0kgf/cm2} min. at low idlingApprox. 6.0 liters (Oil pan high level 5.5 liters,Oil filter etc.Approx. 0.5 liters,High ~ Low Approx. 1.8 liters)

Forced circulation of fresh water by centrifugal pump with thermostat

1.21 ( Crankpulley : Water pump pulley = 116:96 )

Side way, internal diameter increased type

Forced circulation by trochoid pump

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SPC-S4L-094A(5/7) 2. Engine attached items&Reference drawings

Parts Name Parts No. Q'ty Remarks1 WIRING DIAGRAM 31A90-09101 Reference, for ETR solenoid2 SWITCH,OIL PRESSURE 31A90-00500 1 A43 SWITCH,THERMO 30N46-00500 1 A44 UNIT,PRESSURE GAGE 5 UNIT,THERMOMETER 6 OIL FILTER 30N40-00200 1 A47 COOLING FAN(6PF-380) 30A48-00401 1 A48 FILTER ASSY,FUEL MM435-190 1 A49 STARTER (12V-1.7kW) 31B66-00101 1 A4x2

10 PLUG,GLOW 31N66-00030 4 A411 ALTERNATOR (12V-50A) 31A68-00402 1 A412 SOLENOID ASSY 30N87-00010 1 ETR type A4

Note: Drawing No. subject to alteration without notice.

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SPC-S4L-094A(6/7)

3. Accessories(Loose supply parts)

Parts Name Parts No. Q'ty Remarks1 GASKET,INLET PIPE 31N30-01600 1 A42 GASKET,EXHAUST 30N32-00300 1 A43 RADIATOR ASSY 31N47-00070 14 HOSE,WATER UPPER 31N47-00400 15 HOSE,WATER LOWER 31N47-00500 16 CLAMP HOSE (37) F4300-03701 2 A3x1

7 CLAMP HOSE (47) F4300-04701 2 A4x1

8 CUSHION,BOTTOM 31N47-01300 29 CUSHION,UPPER 31N47-01400 2

10 COLLAR 31N47-01500 211 COCK ASSY 31A47-03500 1 A412 CLIP,HOSE 42786-03300 1 For cock assy A413 PUMP ASSY,FUEL MM200-54301 1 A4

Note: Drawing No. subject to alteration without notice.

RADIATOR KIT31N47-010802

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