Yanmar 4BY2 Operation Manuals page 78

SPECIFICATIONS
Engine Model
Fuel Injection System
Fuel Injection Pressure
Injection Timing
ECU Threshold Voltage
Cooling System
Coolant Capacity (Ap-
proximate)
Seawater Pump
Capacity
Maximum Lift
Hydraulic Oil Cooler
Lubrication System
Oil Cooler
Engine Oil Pressure at
4000 rpm
Engine Oil Pressure at
1000 rpm
Engine Oil Capaci-
ty****
Crankcase Ventilation
Drive Options
Stern Drive
Marine Gear
Operational Angles
Continuous
Peak
Height
Length (without marine gear)
Stern Drive (front-to-
middle of engine
mount)
Marine Gear (front-to-
marine gear mounting
face)
Overall Length
Width
72
4BY2-150 / 4BY2-180 /
150Z
Common rail (ECU-controlled)
Variable depending on rpm; 250 - 1600 bar (3626 - 23,206 psi)
Closed cooling system with seawater heat exchanger
10 L (10.6 qt)
Rubber impeller, belt driven
165 L/min at maximum rating
Totally enclosed, forced lube system
0.6 - 1.0 bar (8.7 - 14.5 psi)
8.0 L (8.5 qt)*****
ZT350 or MerCruiser Bravo-1, -2, -3
KMH40 or KMH50
Front-to-Rear: -5 to 20°, Side-to-Side: 20°
Front-to-Rear: -5 to 25°, Side-to-Side: 30°
736.5 mm (30.0 in.)
644 mm (25.4 in.)
839.2 mm (33.0 in.)
670 mm (26.4 in.) (local exceeding)
© 2008 Yanmar Marine International
6BY2-220 /
180Z 220Z
Variable (ECU controlled)
7.8 V
2000 mm (78.75 in.)
Seawater cooled
Engine coolant system
3.5 - 6.0 bar (51 - 87 psi)
Closed, with filter
721 mm (28.4 in.)
BY Series Operation Manual
6BY2-260 /
260Z
13 L (13.7 qt)
11.0 L (11.5 qt) *****
KMH50
942 mm (37.1 in.)
827.5 mm (32.6in.)
1001 mm (39.4 in.)