3YM30
SPECIFICATIONS
3YM30-2
Marine Installation Manual - Volume 2
3YM30
Engine Specifications
Notes:
1. Rating condition:
* Fuel temperature: 25°C at fuel pump
inlet ISO 3046-1
** Fuel temperature: 40°C at fuel pump
inlet ISO 8665
Fuel density: 0.842 g/cm
3
at 15°C
2. 1 HP (hp metric) = 0.7355 kW
Parameter
Data
Configuration
4-cycle, Vertical,
Water-Cooled Diesel
Crankshaft Rotation
(Viewed from Stern)
Counterclockwise
Combustion System
Swirl Pre-Combustion
Chamber
Aspiration
Naturally Aspirated
Number of Cylinders
3
Bore x Stroke
76 mm x 82 mm
(2.9 in. x 3.2 in.)
Displacement
1.115 L
(68.04 cu in.)
Continuous Rating
Output at Crankshaft
(at 3489 rpm)
20.1 kW*
(27.3 hp metric)*
Brake Mean Effective
Pressure
(Continuous Rating
Output)
0.62 MPa
6.31 kgf/cm
2
(89.92 psi)
Piston Speed
(Continuous Rating
Output)()
9.54 m/sec.
(31.3 ft/sec.)
Maximum Output at
Crankshaft
(at 3600)
22.1 kW*
(30.0 hp metric)*
or
21.3 kW**
(29.0 hp metric)**
Brake Mean Effective
Pressure
(Maximum Output)
0.66 MPa*
6.72 kgf/cm
2
*
(95.73 psi)*
Piston Speed
(Maximum Output)
9.84 m/sec.
(32.28 ft/sec.)
High Idling Speed
3850 ± 25 rpm
Low Idling Speed
850 ±
25 rpm
Firing Order
240° 240° 240°
1 - 3 - 2 - 1
Starter Motor
DC 12 V, 1.4 kW
Alternator
DC 12 V, 60A
DC 12 V, 80A - Optional
Minimum Battery
Capacity
DC 12 V, 64 Ah
Cooling System
Fresh water cooling by
centrifugal fresh water
pump and rubber
impeller seawater pump
Coolant Capacity
(Engine)
4.6 L
(4.9 qt)
Coolant Recovery
Tank Capacity
0.8 L
(0.85 qt)
Engine Lubrication
System
Forced lubrication with
trochoid pump
Engine Oil Capacity at
8° Rake Angle
(Effective / Maximum)
1.4 / 2.8 L
(1.48 / 2.96 qt)
Engine Oil Capacity at
0° Rake Angle
(Effective / Maximum)
1.5 / 2.5 L
(1.59 / 2.64 qt)
Dry Weight
(with KM2P-1)
133 kg
(293 lb)
Dry Weight
(with SD20)
157 kg
(346 lb)
Recommended
Installation Rake
Angle
KM2P-1: 8°
SD20: 0°
Maximum Installation
Rake Angle
KM2P-1: 15°
Parameter
Data
JUN 2006 (Rev. 1)
