Marine Installation Manual - Volume 2
3YM30-1
3YM30
Page
Engine Specifications .................................................................... 2
Marine Gear / Sail Drive Specifications ......................................... 3
Fuel System Specifications ........................................................... 4
Cooling System Specifications ...................................................... 4
Air Intake and Exhaust Specifications ........................................... 5
Alarm System Specifications ......................................................... 5
Engine Outline with KM2P-1.......................................................... 6
Engine Outline with SD20.............................................................. 7
Piping Diagram.............................................................................. 9
Electrical System ......................................................................... 10
Performance Curves.................................................................... 15
Controls ....................................................................................... 16
Power Take-Off ........................................................................... 18
Engine Mount Specifications ....................................................... 19
Flexible Mount Distortion............................................................. 21
Cold Starting Aids........................................................................ 22
Air Venting................................................................................... 22
Water Heater Tank Connection................................................... 22
Optional Accessories................................................................... 22
JUN 2006 (Rev. 1)
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)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-3
3YM30
Marine Gear / Sail Drive
Specifications
Use the KM2P-1 or the SD20 with the 3YM30
engine. KM2P-1 is a parallel drive with a
mechanical cone clutch and SD20 has a constant
mesh gear with dog clutch.
KM2P-1
SD20
Parameter Data
Reduction Ratio
(Ahead)
2.21 / 2.62 / 3.22
Reduction Ratio
(Astern)
3.06
Marine Gear
Oil Capacity
0.3 L
(0.32 qt)
Propeller Rotation
(Viewed from Stern)
Clockwise
Dry Weight
(without Engine)
10.3 kg
(27.7 lb)
Parameter Data
Reduction Ratio
(Ahead)
2.64
Reduction Ratio
(Astern)
2.64
Sail Drive
Oil Capacity
Standard
2.2 L
(2.3 qt)
Long-reach
2.5 L
(2.6 qt)
Propeller Rotation
(Viewed from Stern)
Counterclockwise
Dry Weight
(without Engine)
30 kg
(66.13 lb)
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-4
Marine Installation Manual - Volume 2
Fuel System Specifications Cooling System Specifications
Parameter Data
Maximum Fuel Feed
Pump Suction Head
0.5 m
(19.69 in.)
Maximum Fuel Feed
Pump Discharge
Volume (Engine at
3000 rpm)
9.2 L/min.
(2.44 gal/min.)
Maximum Fuel Feed
Pump Discharge
Pressure (Engine at
3000 rpm)
12.73 kPa
(1.85 psi)
Fuel Inlet Pipe
Connector Outer
Diameter
8.3 mm
(0.326 in.)
Fuel Return Pipe
Connector Outer
Diameter
8.0 mm
(0.315 in.)
Fuel Consumption at
Continuous Rated
Output
6.7 L/hr
(1.77 gal/hr)
Parameter Data
Maximum Seawater
Pump Suction Head
0.5 m
(19.69 in.)
Seawater Inlet Pipe
Connector Outer
Diameter
17.3 mm
(0.682 in.)
Thermostat
Operating
Temperature
(Full Open)
85°C
(185°F)
Thermostat
Operating
Temperature
(Opening)
70 - 72°C
(158 - 161.6°F)
Maximum Overflow
Pipe Length
(Coolant Recovery
Tank to Filler Cap)
1.0 m
(39.37 in.)
Maximum Overflow
Pipe Outer Diameter
(Coolant Recovery
Tank to Filler Cap)
9 mm
(0.355 in.)
Water Heater Tank
Connector Thread
Size
RC 3/8 (inlet)
M16 (outlet)
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-5
3YM30
Air Intake and Exhaust Specifications
Alarm System Specifications
Parameter Data
Exhaust Pipe Outer
Diameter Connection
50.8 mm
(2.0 in.)
Minimum Engine
Room Fresh Air
Exchanges
(Ventilator Capacity)
5.5 cu m/min.
(194.23 cu ft/min.)
Maximum Back
Pressure (measured
within 250 mm
[9.8 in.] of exhaust
manifold inlet)
1500 mmAq
14.7 kPa
(0.15 kgf/cm
2
)
Maximum Output
Exhaust
Temperature
(measured within
250 mm [9.8 in.] of
exhaust manifold
inlet)
600°C
(1112°F)
Maximum
Turbocharger Boost
Pressure
-
Maximum Engine
Room Ambient
Temperature
60°C
(140°F)
Parameter Data
Coolant Alarm Switch
Operating
Temperature
ON:
93 - 97°C
(199.4 - 206.6°F)
OFF:
88 - 93°C
(190 - 199°F)
Lube Oil Switch
Operating Pressure
9.8 - 29.4 kPa
(1.43 - 4.27 psi)
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-6
Marine Installation Manual - Volume 2
Engine Outline with KM2P-1
Figure -1
Unit: mm
0003815
NOV 2006 (Rev. 2)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-7
3YM30
Engine Outline with SD20
Figure -2
Notes:
1. Drawing shows mounting blocks at original height.
2. Engine weight will compress blocks by approximately 4.5 mm (0.18 in.).
3. Mounting blocks are equipped for standard accessory.
4.
shows center of gravity.
5. Unit: mm
0003754
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-8
Marine Installation Manual - Volume 2
Flywheel / Flywheel Housing Dimensions
Figure -3
Unit: mm
H8
+0.063
170
252
φ
150
266.7
+0.1
* htiw dekram noisnemid eht ni ylno seires MG morf sreffiD
φ
φ
φ
12
70
*
24.5
㧟㧜°
8
PCφ285.75
PC
㧞㧞㧚㧡°
㧞㧞㧚㧡°
0003806
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-9
3YM30
Piping Diagram
Figure -4
Unit: mm
P
HCTIWS ERUTAREPMET RETAW HSERF
RETLIF LIO LEUF
P
B TRAP FO LIATED
ޓ
P
T
EVLAV LORTNOC ERUSSERP
)EPYT EGDIRTRAC( RETLIF LIO .BUL
PMUP NOITCEJNI LEUF
EPIP ERUSSERP HGIH LEUF
ELZZO
N NOITCEJNI LEUF
HCTIWS ERUSSERP LIO
GNIRAEB NIAM
)RETAW AES( PMUP RETAW GNILOOC
PMUP LIO .BUL
TELNI NOITC
ENNOC RETAW TOH
)RETAW HSERF( PMUP RETAW GNILOOC
TELTUO NOITCENNOC RETAW TOH
TATSOMREHT
FUEL OIL INLET
WOBLE GNIXIM
RETLIF TELNI LIO .BUL
A
B
TFAHS MAC OT
TO OIL PAN
MORF
REDNILYC
DAEH
SEA WATER INLET
P
OVERFLOW
RELOOC RETAW HSERF
PMUP DEEF LEUF
A TRAP FO LIATED
C
D
C TRAP FO LIATED
D TRAP FO LIATED
φ
8
16.5
φ
8.5
17
φ
8
φ
9
φ
17
18
VCP
φ
50
epip lio leuF
gnipip fo skraM
epip lio ebuL
gnipip retaw aes gnilooC
eloh llirD
tnioj eyE
)noinU( tnioj wercS
epip leetS
PGS
STS
HR
esoh rebbuR
T1021C
epip reppoC
gnipip retaw hserf gnilooC
tnioj noitresnI
tnioj egnalF
0002760A
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-10
Marine Installation Manual - Volume 2
Electrical System
Starter Specifications
Performance Curve for Starter
Figure -5
Parameter Data
Yanmar Code 129608-77010
Starter Model S114-817A (Hitachi)
Voltage 12 V
Output 1.4 kW
(1.9 hp metric)
Direction of Rotation
(Viewed from Pinion
Side)
Clockwise
Weight 3.0 kg (6.6 lb)
Rating 30 seconds
Number of Pinion
Teeth
11
No-load Terminal
Voltage
11 V
No-load Maximum
Current
90A (maximum)
No-load rpm 2700 (minimum)
Loaded Terminal
Voltage
8.4 V
Loaded Maximum
Current
250A
Loaded Torque 8.3 N·m (0.85 kgf-m)
(6.12 lbf-ft) minimum
Loaded rpm 1000 (minimum)
Parameter Data
0003807
rpm
(rpm)
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-11
3YM30
Panel
The 3YM30 uses the new B-type (VDO) panel.
Figure - 6
0
10
20 30
40
SLOW
SLOW
STOP
STOP
OFF
OFF
ON
START
START
50
165
180
521
041
(1) (2) (3) (4)
(5)
0002780
(6)(7)(8)
1. Coolant High
Temperature
Alarm Lamp
2. Engine Oil
Pressure Alarm
Lamp
3. Water in Sail Drive
Alarm Lamp
4. Battery Low
Charge Alarm
Lamp
5. Engine Stop
6. Key Switch
7. Tachometer
8. Hourmeter
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-12
Marine Installation Manual - Volume 2
Standard Alternator Data
Performance Curve for 60A Alternator
Figure - 7
Parameter Data
Yanmar Code 128271-77200
Alternator Model LR160-741 (Hitachi)
IC Regulator Model SA-A (Hitachi)
Battery Voltage 12 V
Nominal Output 12 V / 60A
Earth Polarity Negative Earth
Direction of Rotation
(Viewed from Pulley
End)
Clockwise
Weight 4.2 kg (9.2 lb)
Rated Speed 5000 rpm
Operating Speed 1050 - 18,000 rpm
Speed for 13.5 V at
20°C (68°F)
5000 rpm
Output Current for
13.5 V
56A or more at 5000
rpm
Voltage Regulation at
20°C (68°F), Voltage
Gradient, -0.01 V/°C
14.4 ± 0.3 V
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-13
3YM30
Optional Alternator Data
Performance Curve for 80A Alternator
Figure - 8
Parameter Data
Yanmar Code 119573-77201
Alternator Model LR180-03C (Hitachi)
IC Regulator Model TR1Z-63 (Hitachi)
Battery Voltage 12 V
Nominal Output 12 V / 80A
Earth Polarity Negative Earth
Direction of Rotation
(Viewed from Pulley
End)
Clockwise
Weight 5.4 kg (11.9 lb)
Rated Speed 5000 rpm
Operating Speed 1200 - 9000 rpm
Speed for 13.5 V at
20°C (68°F)
1200 rpm
Output Current for
13.5 V
75A or more at 5000
rpm
Voltage Regulation at
20°C (68°F), Voltage
Gradient, -0.01 V/°C
14.5 ± 0.3 V
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-14
Marine Installation Manual - Volume 2
Wiring Diagrams
Panel: B-Type (VDO)
Engine Models: 3YM30 / 3YM20 / 2YM15
Figure -9
-
+
Starter relay
C.W. temp. switch Eng. oil pressure switch
Sail drive
only for sail drive
S
B
L
E
3R
0.85LB
0.85RB
0.85YW
0.85WL
0.85 O
0.85YG
Battery
Starter
Earth bolt
Alternator
Wire
harness
R
Wire harness
2L
12V
1
3
2
Battery switch
Procured by customer
L=1+2+3(m)
Allowable Length by
cross sectional area
of battery cable
10R
10B
0.85B
Eng.stop solenoid
2B
2R
Stop Relay
WBr
2B
5R
+
-
Relay
W/Y
B
3BR
B
Y
Amplifier
only for sail drive
+
-
B
L
YG
RB
Section of cable
Allowable Length
(mm
2
)
15(mm
2
)
<0.86(m)
20(mm
2
)
<1.3(m)
<2.3(m)
30(mm
2
)
40(mm
2
)
<2.8(m)
<3.5(m)
50(mm
2
)
2W
60(mm
2
)
<4.1(m)
C.W.
temp.
Buzzer
oil press.
Tacho meter
Instrument panel
17
G1
+-P
G2
Key switch
Stop switch
30
WBr
hour meter
AC
fuse (3A)
Alarm lamps
diodes
R
L
L
R
W
O
B
YW WL YG LB
Sail
drive
seal
Charge
Glow plug
2B
2B
5R
Option
L=6M
Option
L=3M
2W
2B
0.85B
128990-77910
119247-77100
120270
-77511
119717
-77800
0.85WBr
2R
A
A
(Color coding)
R Red
BBlack
WWhite
LBlue
RB Red / Black
LB Blue / Black
YW Yellow / White
YG Yellow / Green
WL White / Blue
WG
GR
White / Green
Green / Red
O Orange
WBr White / Brown
3R 3W
YW WL WG B
RB LB O YG
Key switch
Coupler
(View from A-A)
GLOW
OFF
ON
START
30 AC G1 G2 17
3L
0003810
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-15
3YM30
Performance Curves
Figure -10
L/h
Fuel Consumption
(Note) Rating Condition: ISO 3046-1
Fuel condition : Density at 15°C=0.842 g/cm
3
Fuel oil temperature : 25°C at fuel injection pump inlet
N/m
8.0
7.0
6.0
5.0
4.0
0.0
3.0
2.0
1.0
Engine Torque
Power
kW
75
70
65
60
55
SPEED OF CRANKSHAFT (rpm)
25.0
22.5
20.0
17.5
12.5
15.0
10.0
1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 3800
7.5
2.5
5.0
0.0
propeller power curve 3 Exponent
Maximum output
Maximum output
without marine gear
Maximum output
with marine gear
Propeller power curve 3 Exponent
0003816
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-16
Marine Installation Manual - Volume 2
Controls
The 3YM30 uses a mechanical linkage to control
engine speed and marine gear shifting. Electric
stop solenoid is applied for engine stop.
Engine Speed Control (YPES-ML Fuel
Injection Pump
Recommended Remote Control Cable
Mechanical Controls (KM2P-1)
Recommended Remote Control Cable
Figure -11
Unit: mm
Parameter Data
Shift Cable Stroke 76.2 mm
(3.0 in.)
Cable Connector Thread
Size
M5* P0.8
Parameter Data
Shift Cable Stroke 76.2 mm
(3.0 in.)
Cable Connector Thread
Size
10-32 UNF
(See Figure -11)
Shifting Lever Force (Reference Value)
Shifting
Direction
Shift Lever
Position at
56 mm
(2.2 in.)
Remote
Control
Handle
Position at
170 mm
(cable length -
4m
[157.5 in.])
Engaging
Force at
Engine 1000
min
-1
29.4 - 39.2 N
(3 - 4 kgf)
(6.6 - 8.8 lbf)
39.2 - 49.0 N
(4 - 5 kgf)
(8.8 - 11.0 lbf)
Disengaging
Force at
Engine 1000
min
-1
34.3 - 49.0 N
(3.5 - 5 kgf)
(7.7 - 11.0 lbf)
39.2 - 58.8 N
(4 - 6 kgf)
(11.0 - 13.2 lbf)
Disengaging
Force at
Engine 1000
min
-1
(KM2P-1 only)
39.2 - 49.0 N
(4 - 5 kgf)
(8.8 - 11.0 lbf)
49.0 - 58.8 N
(5 - 6 kgf)
(11 - 13.2 lbf)
39°
R56
10-32
UNF
Neutral
Forward
Reverse
25°
35.1 35.1
Approx.
70.2
39°
0003814
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-17
3YM30
Mechanical Controls (SD20)
For Serial Number 2128 and before
Figure -12
For Serial Number 2129 and after
Figure -13
Unit: mm
Parameter Data
Shift Cable Stroke 76.2 mm
(3.0 in.)
Cable Connector Thread
Size
10-32 UNF
Shifting Lever Force (Reference Value)
Shifting Direction
Shift Lever Length
70 mm (2.75 in.)
Engaging Force at
Engine 850 min
-1
19.6 - 29.4 N
(2 - 3 kgf)
(4.4 - 6.6 lbf)
Disengaging Force at
Engine 850 min
-1
29.4 - 39.2 N
(3 - 4 kgf)
(6.6 - 8.8 lbf)
0003803
0003734
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-18
Marine Installation Manual - Volume 2
Power Take-Off
The 3YM30 engine has front power take-off (PTO)
capabilities.
Operating Condition:
1. A-type shows an example with an overhang
distance (L) of 30 mm (1.182 in.). When the
overhang distance differs in value, calculate the
capacity with the following formula. (Limit of
distance is 50 mm [1.97 in.])
L: Overhang distance (mm)
kW: Permissible Output
PTO Permissible Output Curve
Figure -14
Allowable Take-Off Output
140 mm
L110+() mm
-------------------------------------
x kW=
800
0
2
4
6
10
12
14
8
12001000 1400 1600 1800 2000 2200 2400 2600 2800 3200
4.4kW
12.5kW
3400 36003000
PERMISSIBLE OUTPUT (kW)
ENGINE SPEED (rpm)
D-type output with propeller not driven
D-type output with driving propeller
A-type output
0003753
JUN 2006 (Rev. 1)
SPECIFICATIONS
Marine Installation Manual - Volume 2
3YM30-19
3YM30
Engine Mount Specifications
Engine Mounts (with KM2P-1)
Figure - 15
Parameter Data
Position of Mount ( )
Flexible Mount ID
(A), (B), (C), (D)
100, 100, 75, 75
(See Figure - 15)
Type of Flexible
Mount
Fixed-1
Flexible Mount ID
and Quantity
ID 75 x 2
ID 100 x 2
(See Figure -16)
0004193
(B)
FRONT
(A)
(C)
REAR
(D)
JUN 2006 (Rev. 1)
3YM30
SPECIFICATIONS
3YM30-20
Marine Installation Manual - Volume 2
Fixed-1 Type Engine Mount
Figure -16
(2)
(3)
(5)
(4)
(6)
(1)
(7)
(8)
(9)
0002484
1. ID Mark (Only ID 300)
2. Lock Nut
3. Spring Washer
4. Flat Washer
5. Jack Nut
6. Rubber Mount
7. ID Mark
8. Engine Foot
9. T (Thread Diameter)
ID H K L P W
Diameter
A
BC
T
Thread
Diameter
Min Max
75 100 mm
3.94 in.
110 mm
4.33 in.
145 mm
5.71 in.
206 mm
8.12 in.
174 mm
6.86 in.
60 mm
2.27 in.
12 mm
0.48 in.
12 mm
0.48 in.
30 mm
1.19 in.
M16 X P1.5
100 100 mm
3.94 in.
110 mm
4.33 in.
145 mm
5.71 in.
206 mm
8.12 in.
174 mm
6.86 in.
60 mm
2.27 in.
12 mm
0.48 in.
12 mm
0.48 in.
30 mm
1.19 in.
M16 X P1.5
JUN 2006 (Rev. 1)
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