Yanmar type 4JH4E
The Powerful Gem
Configuration
4-stroke, vertical, water cooled diesel engine
Maximum output at crankshaft
* 40.5 kW (55 hp) / 3000 rpm
** 39.6 kW (54 hp) / 3000 rpm
Continuous rating output at crankshaft
36.8 kW (50 hp) / 2907 rpm
Displacement
2.19 L (134 cu in)
Bore x stroke
88 mm x 90 mm (3.46 in x 3.54 in)
Cylinders
4
Combustion system
Direct injection
Aspiration
Natural aspiration
Starting system
Electric starting 12 V - 1.4 kW
Alternator
12 V - 60 A (80 A optional)
Cooling system
Fresh water cooling by centrifugal fresh water pump and rubber impeller sea water pump
Lubrication system
Enclosed, forced lubricating system
Direction of rotation (crankshaft)
Counter clockwise viewed from stern
Dry weight without gear
200 kg (441 lbs)
Environmental
BSO II, SAV, EMC compliant and will meet the 2003/44/EC emission requirements
Engine mounting
Rubber type flexible mounting
NOTE: Fuel condition: Density at 15°C = 0.842 g/cm3; 1 hp = 0.7355 kW
* Fuel temperature 25°C at the inlet of the fuel injection pump (ISO 3046-1)
** Fuel temperature 40°C at the inlet of the fuel injection pump (ISO 8665)
Dimensions
(For detailed line-drawings, please refer to our web-site: www.yanmarmarine.com)
Rear view
Right side view
618 mm (24.3 in)
265 mm (10.4 in) 274 mm (10.8 in)
186.2 mm
(7.33 in)
max. 110 mm (4.3 in)
min. 100 mm (3.9 in)
Mixing elbow
o 76.2 mm (3.0 in)
470 mm (18.5 in)
560 mm (22 in)
168 mm
(6.6 in)
506 mm (19.9 in)
190 mm
(7.5 in)
864 mm (34 in)
4JH4E w/ KM35A marine gear
2.0
6
Performance Curves
1.0
2
0.5
0
1500
(Output is according ISO 8665 - Output includes +/- 3% tolerance)
Power
1.5
4
0.0
1750
2000
2250
2500
2750
3000
Crankshaft Speed min-1
Torque
Fuel Consumption
24
Maximum output at prop shaft
30
16
20
8
10
Propeller power curve
0
1500
2000
2250
2500
Crankshaft Speed min-1
2750
150
110
140
100
8
2
6
4
1
130
2
90
120
1500
0
1750
3
10
3000
1750
2000
2250
2500
2750
0
0
1500
3000
1750
2000
Crankshaft Speed min
2250
2500
Crankshaft Speed min-1
-1
-1
2750
3000
Crankshaft Speed min
Crankshaft Speed min-1
-1
Marine
Gears/Drive
14
3.5
12
Model
Type
10
3.0
KM35P
Mechanical
cone clutch
12 kg (27 lbs)
8
ZF30M
Mechanical Multi
2.0
Plate clutch
1.5
28 kg (61 lbs)
2.5
6
Dry
weight
4
1.0
Reduction
ratio (fwd/asn)
2.36/3.16 2.61/3.16
2.15/2.64
2.70/2.64
2
0.5
Propeller speed(fwd/asn)
1232/921 1114/921
1353/1103
1078/1103
0
0.0
Clockwise
Clockwise
Direction
of rotation
1500
1750
2000
2250
2500
2750
3000
(propeller shaft - fwd)Crankshaft Speedviewed
from stern
viewed from stern
min
Dry
212 kg (467 lbs)
228 kg (502 lbs)
14 weight engine
and
gear/drive
12
3
Length
engine
871 mm (34 in)
950 mm (37 in)
10
and gear/drive
KM35A2 (down angle : 7)
Mechanical
cone clutch
13 kg (29 lbs)
-1
8
KM4A1(down angle: 7)
Mechanical cone clutch
Saildrive (SD50)
Mechanical
cone clutch
40 kg (88 lbs)
28 kg (61 lbs)
2.33/3.04 2.64/3.04
1.47/1.47
2.14/2.14
2.63/2.63
3.30/3.30
2.32/2.32
1246/955 1103/955
1983/1983
1360/1360
1106/1106
882/882
1253/1253
Clockwise
viewed from stern
213 kg (470 lbs)
Clockwise & counter clockwise
viewed from stern
228 kg (502 lbs)
Clockwise & counter clockwise
viewed from stern
240 kg (529 lbs)
864 mm (34 in)
922 mm (36 in)
1067 mm (42 in)
2
6
Instrument
Panels
4
1
2-4 2-1
2-2 2-3
1750
2000
2250
14
0
2500
2750
3000
140
125
3-3
79.5
14
5
13.5
Digital
C-type
Panel
3-4
2-4 2-1
13.5
Crankshaft Speed min-1
Digital
B-type
Panel
255 2-6 2-5
165
5
1-1
140
0
1500
2-2 3-2
79.5
165
125
180
2
2-3
1-3 1-2
3-1
3-4
3-3
1-1 1-3 1-2
Type of instrument panel
Function
1 Switch unit
1-1 Key switch for GLOW/OFF/ON/START (4-position switch)
1-2 Push button switch for engine stop
1-3 Moisture cap for key switch
2 Alarm lamp unit
2-1 Battery low charge alarm
2-2 Coolant high temperature alarm
2-3 Lubricating oil low pressure
2-4 Water in sail drive seal alarm
2-5 Water in fuel filter alarm
2-6 Sea water insufficient flow alarm
3 Meters
3-1 Lubricating oil pressure meter
3-2 Coolant temperature meter
3-3 Hour meter
3-4 Tachometer
4 Audible alarm buzzer
Note: O = Equipped on panel X = Not equipped on panel
Digital B-type Panel
Digital C-type Panel
O
O
O
O
O
O
O
O
O
O
X
X
O
O
O
O
O*
O*
X
X
O
O
O
O
O
O
O
O
*function not available for 4JH4E natural aspiration engines
Accessories
Standard Package
• Set of flexible mounting
• Exhaust/water mixing elbow (L-type)
• V-belt cover
• Expansion tank for fresh water cooling system
• Alternator 12 V - 60 A
• Electric stop solenoid
Optional
• Additional Digital B-type instrument panel
• Additional Digital C-type instrument panel
• Primary 80 A alternator or second 60/80 A alternator
• Alternator bracket and cover for second alternator
• Exhaust/water mixing elbow, U-type (high riser)
• Various extension wire harnesses
• Various couplings (straights, tapers, slits)
Texts and illustrations are not binding. Yanmar Marine reserves the right to introduce adaptations without prior notification.
www.yanmarmarine.com
Y-axis right: Fuel Consumption gal/hr
40
12
120
160
Fuel Consumption L/hr
50
Crankshaft Torque lb-ft
Maximum output at crankshaft
32
Crankshaft Torque Nm
40
Output (crankshaft/propeller shaft) hp
Output (crankshaft/propeller shaft) kW
14