Yanmar 3YM20, Operation Manual

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2. PRODUCT EXPLANATION
11
EN
2.2 Engine Specifications
Note: Fuel condition: Density at 15 ºC = 0.842
Rating condition ISO 3046-1, at fuel temp. 25°C ; ISO 3046-1, at fuel temp. 40°C inlet; ISO 8665. At FO
pump inlet.
Engine Model unit 2YM15
Marine gear model - KM2P-1 SD-20
Use - Pleasure use
Type - Vertical water-cooled 4-cycle diesel engine
Combustion system - Swirl pre-combustion chamber
Number of cylinders - 2
Bore x stroke mm(inch) 70x74(2.76x2.91)
Displacement L 0.570
Continuous
power Output at crankshaft/
Engine speed kW(hp)/
min
-1[1]
9.4(12.8)/3489(at Fuel temp. 25°C)
[2]
Fuel stop
power Output at crankshaft/
Engine speed kW(hp)/
min
-1
[1]
10.3(14.0)/3600(at Fuel temp. 25°C) [2]
/10.0(13.6)/3600(at Fuel temp. 40°C) [2]
Output at propeller/
Engine speed kW(hp)/
min
-1
[1]
10.0(13.6)/3600(at Fuel temp. 25°C) [2]
/9.7(13.2)/3600(at Fuel temp. 40°C) [2]
-
Installation - Flexible mounting
Fuel injection opening pressure MPa 12.3+0.98-0
Direction of
rotation Crankshaft - Counter-clockwise viewed from stern
Propeller shaft
(Ahead) - Clockwise viewed from stern -
Cooling system - Fresh water-cooling with heat exchanger
Lubrication system - Complete enclosed forced lubrication
Cooling water capacity (fresh) L(quart) Engine 3.0 (3.2), Coolant recovery tank: 0.8(0.8)
Lubricating
oil capacity
(engine) Rake angle °(deg) at rake angle 8° at rake angle 0°
Total
[3] L(quart) 2.0(2.1) 1.8(1.9)
Effective
[4]
0.95(1.0) 0.9(1.0)
Starting sys-
tem Type - Electric
Starting motor V-kW DC 12V - 1.4 kW
AC generator V-A 12V - 60A (12V - 80A optional)
Engine
dimension Overall length mm(inch) 613(24.1) -
Overall width 463(18.2)
Overall height 528(20.8)
Engine dry mass (include marine
gear) kg 113 134(with SD20)
[1] hp = 0.7355 kW
[2] Fuel temperature at the inlet of the fuel injection pump.
[3] The "Total" oil quantity includes oil in oil pan, channels, coolers and filter.
[4] The effective amount of oil shows the difference in maximum scale of the dipstick and minimum
scale.