Yanmar 3YM30, Service Manual

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1. General
Official engine model name unit 2YM15
Company internal model name - 2YM15 2YM15C
Marine gear model - KM2P-1 SD20
Use - Pleasure use
Type - Vertical water cooled 4 cycle diesel engine
Combustion system - Indirect injection
Air charging - Naturally aspirated
Number of cylinders - 2
Bore x stroke mm(inch) 70 x 74 (2.76 x 2.91)
Displacement L 0.570
Continuous
power
Output at
crankshaft /
Engine speed
kW(HP)/
min
-1
9.4(12.8) / 3489
(at Fuel temp. 25°C) *
Fuel stop
power
Output at
crankshaft /
Engine speed
kW(HP)/
min
-1
10.3(14.0) / 3600
(at Fuel temp. 25°C) *
10.0(13.6) / 3600
(at Fuel temp. 40°C) **
Output at
propeller shaft /
Engine speed
kW(HP)/
min
-1
10.0(13.6) / 3600
(at Fuel temp. 25°C) *
9.7(13.2) / 3600
(at Fuel temp. 40°C) **
Installation - Flexible mounting
Fuel injection timing deg b.T.D.C. FID 21±1 (FIC-Air : 23±1)
Fuel injection opening
pressure
MPa
(kgf/cm
2
)
12.3
+0.98
/
-0
(125
+10
/
-0
)
Main power take off - At Flywheel side
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 water)
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 deg. at rake angle 0 deg.
Total (Note 4)
L(quart)
2.0
0
/
-0.2
(2.1
0
/
-0.2
)
1.8
0
/
-0.2
(1.9
0
/
-0.2
)
Effective (Note 5) 0.95 (1.0) 1.5 (1.6)
Starting
system
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) 613 (24.1)
Overall width 463 (18.2) 463 (18.2)
Overall height 528 (20.8) 528 (20.8)
Engine dry mass
(include marine gear)
kg 115 134 (with SD20)
2-2R1