Oil Pump Removal - Yanmar 6LPA-STP2 Service Manual

Oil Pump
12/05

Oil Pump Removal

Remove and clean the oil pan and oil strainer when
repairing the oil pump.
1. Drain the engine fresh cooling water. See
Draining the Freshwater Cooling System on
page 3-26.
2. Drain the engine oil. See Changing the Engine
Oil and Replacing the Engine Oil Filter Element
on page 4-9.
3. Remove the timing gear. See Timing Gear
Removal on page 5-80.
4. Remove the 27 oil pan nuts and bolts and insert
an appropriate tool (Figure 8-4, (1)) between
the cylinder block and oil pan to cut off the seal
and then remove the oil pan. NOTICE: During
removal avoid damaging the oil pan flange.
Figure 8-4
( 1 )
Figure 8-4
5. Remove the 2 nuts securing the fuel injection
pump to the timing gear case.
6. Remove the 7 bolts securing the timing gear
case to the cylinder block.
7. Insert a screwdriver (Figure 8-5, (1)) between
the oil pump and cylinder block and pry to
remove the oil pump.
6LPA Service Manual
Figure 8-5
(1)
8. Remove the gasket and O-ring.
9. Remove the 2 bolts (Figure 8-6, (1)) and
2 nuts (Figure 8-6, (2)), and the oil strainer and
gasket.
Figure 8-6
(1)
0005356
© 2007 Yanmar Marine International
Figure 8-5
(2)
(1)
Figure 8-6
LUBRICATION
0005357
(2)
(1)
0005358
8-7