Yanmar type 4BY2-150
Configuration In line, 4-stroke cycle, water cooled diesel engine
Maximum output at crankshaft * 110 kW (150 mhp) / 4000 rpm
Continuous rating output at crankshaft 85 kW ( 114 mhp) / 3600 rpm
Displacement 1.995 L (122 cu in)
Bore x stroke 84 mm x 90 mm (3.31 in x 3.54 in)
Cylinders 4, Common Rail with vertical injectors
Combustion system Direct injection
Aspiration Wastegated, turbocharged with intercooler
Starting system Electric starting 12 V - 2 kW
Alternator 12 V - 150 A
Cooling system Fresh water cooling with heat exchanger, and sea water cooled charge air cooler
Lubrication system Totally enclosed, forced lubricating system with pump
Can Bus According to NMEA 2000 protocol
Direction of rotation (crankshaft) Counter clockwise viewed from flywheel side
Dry weight without gear 258 kg (569 lbs)
Environmental EU RCD, US EPA Tier2, BSO II & EMC + EPA/IMO
Engine mounting Rubber type antivibration mounts
NOTE: Fuel condition: Density at 15°C = 0.84 g/cm 3; 1kW = 1.3596 mhp = 1.3410 HP
* Fuel temperature 40°C at the inlet of the fuel injection pump (ISO 8665)
Technical data is according to ISO 8665 / 3046
Dimensions (For detailed line-drawings, please refer to our web-site: www.yanmarmarine.com or contact your supplier)
4BY2-150 with KMH40A marine gear
Performance Curves (Output is according ISO 8665)
Power Torque Fuel Consumption
120 160 350 40
250
10
Output (crankshaft/propeller shaft) mhp
Output (crankshaft/propeller shaft) kW
300 35
100
200
Fuel Consumption gal/hr
Crankshaft Torque lb-ft
8
Crankshaft Torque Nm
120 30
Maximum output at crankshaft
Fuel Consumption L/hr
250
80
25
200 150 6
Maximum output
60 80 20
at propeller shaft
150
100 15 4
40
100
40 10
Propellor power curve 50 2
20
50 5
0 0 0 0 0 0
1000 1500 2000 2500 3000 3500 4000 1000 1500 2000 2500 3000 3500 4000 1000 1500 2000 2500 3000 3500 4000
Crankshaft Speed min-1 Crankshaft Speed min-1 Crankshaft Speed min-1
Marine gear (examples) **
Model KMH40A
Type 8 down Hydraulic
Dry weight 34 kg (75 lbs)
Reduction ratio (fwd/asn) 1,24/1,24 1,53/1,53 2,04/2,04 2,45/2,45 2,62/2,62
Propeller speed (fwd/asn) 3226/3226 2614/2614 1961/1961 1633/1633 1527/1527
Direction of rotation Clockwise & counter clockwise
(propeller shaft - fwd) viewed from flywheel side
Dry weight engine with gear 292 kg (644 lbs)
Length engine with gear 891 mm (35 in)
** Other marine gearboxes and configurations available upon request. Contact your local supplier for more information.
Instrument Panels
Control head
Multi function LCD display
CAN Bus system
Multi function LCD display:
- engine information
- maintenance information
- diagnosis messages
Engine room CAN Bus Interface
Engine Accessories Electronic Control System
Standard Engine Package System Standard Electronic Control
• Alternator 12V - 150A single pole • Electronic Control Head
• Protection cover for engine transmission • LCD display
• Exhaust mixing Elbow (L-type) • Back-up trottle control system
• Flexible Mounts
• Glow plug controller and related parts
Optional Engine Package System Optional Electronic Control
• High riser mixing elbow • Various engine Monitoring gauges
• Exhaust side dipstick • Various engine Control heads
• Electrical Gearshift
• Trolling
Texts and illustrations are not binding. Yanmar Marine reserves the right to introduce adaptations without prior notification. 4BY2-150 Version: 2008-09
www.yanmarmarine.com
