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