Yanmar 6LPA-STP2 Service Manual page 203

Fuel Injection Nozzle
12/05
10. Install 7 new gaskets and No. 1 fuel return pipe
to the cylinder head and fuel injection nozzle,
using 6 joint bolts and nuts. Torque the joint bolt
to: 176 kgf·cm, 17.26 N·m (12.7 lb-ft). Torque
the nut to: 186 kgf·cm, 18.24 N·m (13.4 lb-ft).
• Install gasket (A) so that its joint is located
between pipes, as shown in (Figure 6-48).
Figure 6-48
(1)
Figure 6-48
1 – Joint Bolt
2 – New Gasket (A)
3 – Turbocharger Pressure Gauge Tool
4 – No. 1 Nozzle Fuel Return Pipe
5 – New Gasket (B)
6 – Cylinder Head
6LPA Service Manual
(2)
(3)
(5)
(4)
(6)
0005311
© 2007 Yanmar Marine International
11. Use the turbocharger pressure gauge as the
tool. Connect the pressure gauge to the fuel
return side of the No. 1 fuel return pipe, apply
2
0.5 kgf/cm , 0.05 MPa (7 psi) pressure
continuously for 10 seconds and check for
leakage.
12. Connect the fuel return hose to the No. 1 fuel
return pipe.
13. Install the rocker cover. See Install the Rocker
Cover on page 5-39.
14. Start the engine and check for fuel leakage.
WARNING! NEVER check for a fuel leak with
your hand.
FUEL SYSTEM
6-27