1. General21.2 SpecificationsOfficial engine model name unit 3YM30 3YM20Company internal model name - 3YM30 3YM30C 3YM20 3YM20CMarine gear model - KM2P-1 SD20 KM2P-1 SD20Use - Pleasure useType - Vertical water cooled 4 cycle diesel engineCombustion system - Indirect injectionAir charging - Naturally aspiratedNumber of cylinders - 3Bore x stroke mm(inch) 76 x 82 (2.99 x 3.23) 70 x 74 (2.76 x 2.91)Displacement L 1.115 0.854ContinuouspowerOutput atcrankshaft /Engine speedkW(HP)/min-120.1(27.3) / 3489(at Fuel temp. 25°C) *14.7(20.0) / 3489(at Fuel temp. 25°C) *Fuel stoppowerOutput atcrankshaft /Engine speedkW(HP)/min-122.1(30) / 3600(at Fuel temp. 25°C) *21.3(29.0) / 3600(at Fuel temp. 40°C) **16.2(22) / 3600(at Fuel temp. 25°C) *15.3(20.8) / 3600(at Fuel temp. 40°C) **Output atpropeller shaft /Engine speedkW(HP)/min-121.4(29.1) / 3600(at Fuel temp. 25°C) *20.7(28.1) / 3600(at Fuel temp. 40°C) **15.7(21.3) / 3600(at Fuel temp. 25°C) *14.9(20.2) / 3600(at Fuel temp. 40°C) **Installation - Flexible mountingFuel injection timing deg b.T.D.C. FID 16±1 (FIC-Air : 18±1) FID 22±1 (FIC-Air : 24±1)Fuel injection openingpressureMPa(kgf/cm2 ) 11.8+0.98 / -0 (120 +10 /-0 ) 12.3+0.98 / -0 (125 +10 /-0 )Main power take off - At Flywheel sideDirection ofrotationCrankshaft - Counter-clockwise viewed from sternPropeller shaft(Ahead) - Clockwise viewed from sternCooling system - Fresh water cooling with heat exchangerLubrication system - Complete enclosed forced lubricationCooling water capacity(fresh water) L(quart) Engine:4.9 (5.2),Coolant recovery tank : 0.8 (0.8)Engine:4.1 (4.3),Coolant recovery tank : 0.8 (0.8)Lubricatingoil capacity(engine)Rake angle deg. at rake angle 8 deg at rake angle 0 deg at rake angle 8 deg at rake angle 0 degTotal (Note 4) L(quart)2.8 0 /-0.2(3.0 0 /-0.2 )2.5 0 / -0.2(2.6 0 / -0.2)2.7 0 /-0.2(2.9 0 /-0.2 )2.4 0 / -0.2(2.5 0 / -0.2)Effective (Note 5) 1.4 (1.5) 1.5 (1.6) 1.4 (1.5) 1.5 (1.6)StartingsystemType - ElectricStarting motor V-kW DC 12V-1.4 kWAC generator V-A 12V-60A (12V-80A optional)EngineDimensionOverall lengthmm(inch)715 (28.1) 715 (28.1) 698 (27.5) 698 (27.5)Overall width 463 (18.2) 463 (18.2) 463 (18.2) 463 (18.2)Overall height 545 (21.5) 545 (21.5) 528 (20.8) 528 (20.8)Engine dry mass(include marine gear) kg 133 157 (with SD20) 120 144 (with SD20)
