Yanmar 6LY3 series Service Manual page 169

Fuel Injection Nozzle Components and Functions
12/05
Fuel leaking between the nozzle valve and the
nozzle body goes to the hole on top of the nozzle
holder body and goes back through the return pipe
to the fuel tank.
Fuel Injection Nozzle Specifications
Nozzle ID Mark
Spray Angle
No. of Injection Hole and Diameter
Nozzle Opening Pressure
Nozzle Lift
Body Mark
Tightening Torque
NOTICE: The fuel injection nozzle for 6LY3-ETP is different in volume from that for the 6LY3-STP / -UTP.
6LY3 Service Manual
Engine Model
No. 1 Pressure
No. 2 Pressure
Pre-Lift
Full Lift
Nozzle Holder Retaining Nut M15
High-Pressure Pipe Joint M12
Fuel Return Pipe Joint M6
© 2007 Yanmar Marine International
6LY3-ETP
D DLLA155P913
155
7-Ø0.26 mm (0.27 in.-0.010 in.)
24.00-24.98 MPa (245-255 kgf / cm
36.96-38.34 MPa (377-391 (kgf / cm
0.24-0.30 mm (0.009-0.011 in.)
0.33-0.38 (0.012-0.014 in.)
D 8000
39.2-49.0 N·m (400-500 kgf·cm) (28.9-36.1 lb-ft)
22.5-26.5 N·m (229-270 kgf·cm) (16.5-19.5 lb-ft)
7.0-9.0 N·m (71-92 kgf·cm) (5.1-6.6 lb-ft)
FUEL SYSTEM
6LY3-STP
6LY3-UTP
D DLLA155P954
2
) (3480-3611 psi)
2
) (5351-5554 psi)
D 8090
6-27