Fuel Injection Pump Installation - Yanmar 6LPA-STP2 Service Manual

FUEL SYSTEM

Fuel Injection Pump Installation

1. Install a new O-ring to the pump. NOTICE:
NEVER place the fuel injection pump at more
than 45° from level.
2. Lightly apply engine oil to the O-ring.
3. Align the set key on the drive shaft with the
groove in the fuel injection pump drive gear
(Figure 6-56).
Figure 6-56
Figure 6-56
4. Align the match marks (Figure 6-57, (1)) of the
fuel injection pump and timing gear case.
5. Install the two nut securing the fuel injection
pump to the timing gear case and torque to 185
kgf·cm, 18.14 N·m (13.4 lb-ft).
Figure 6-57
(1)
Figure 6-57
6-34
6. Install the fuel injection pump stay using two
bolts (Figure 6-58, (1)) and torque to
700 kgf·cm, 68.65 N·m (50.6 lb-ft). NOTICE:
Check that the pump stay is lifted to contact
with the fuel injection pump before tightening to
the specified torque. If there is a gap, loosen
the bolt securing the pump stay to the cylinder
block and lift the pump stay until it comes into
contact with the fuel injection pump.
Figure 6-58
0005319
7. Install a new O-ring to the fuel injection pump
drive gear.
8. Install the drive gear set nut of the fuel injection
pump.
9. Tighten the set nut (Figure 6-59, (1)) while
securing the crankshaft pulley and torque to
1050 kgf·cm, 102.97 N·m (76 lb-ft). NOTICE:
NEVER turn the crankshaft pulley as damage
will occur if the valve heads and piston tops
contact.
Figure 6-59
0005320
© 2007 Yanmar Marine International
Fuel Injection Pump
Figure 6-58
(1)
Figure 6-59
6LPA Service Manual
(1)
0005321
0005322