Yanmar 6LPA-STP2 Service Manual page 144

ENGINE
9. Apply seal packing (TOYOTA P/N 08826-00080
or equivalent) to the cylinder block
(Figure 5-144).
Note: Parts must be assembled within 5
minutes after the seal packing is applied
or the packing material must be removed
and then reapplied. Disconnect the
nozzle from the tube immediately after
use and cap the tube.
• Apply the seal packing in a width of
4 to 5 mm (0.157 to 0.197 in.)
(Figure 5-144, (1)).
Figure 5-144
(1)
Figure 5-144
10. Install a new oil hole gasket (Figure 5-145, (1)).
Figure 5-145
Figure 5-145
11. Place the main bearing cap on the cylinder
block.
12. Apply engine oil to the threads and seat
surfaces of the main bearing cap bolts.
Note: Replace any main bearing cap bolts that
are broken, damaged or deformed.
5-64
0005067
(1)
0005068
© 2007 Yanmar Marine International
13. Install the 14 main bearing cap bolts (12
pointed head), and tighten them uniformly in
several passes in the sequence shown in
Figure 5-146.
• Torque: 1050 kgf·cm, 102.90 N·m (75.9 lb-ft)
Note: If any of the main bearing cap bolts fail to
torque to the torque specification,
replace the main bearing cap bolts.
Figure 5-146
(3)
(7)
(11)
(8)
(12)
Figure 5-146
14. Make paint marks (Figure 5-147, (1)) on the
front (Figure 5-147, (2)) of the main bearing
cap bolt heads.
15. Retighten all bolts by 90° (Figure 5-147, (3)) in
the numerical order shown in Figure 5-147.
Figure 5-147
(3)
(3)
(2)
(1)
Figure 5-147
16. After all bolts have been retightened, check that
all paint marks are facing 90° from the starting
front point.
17. Check that the crankshaft rotates smoothly.
6LPA Service Manual
Cylinder Block
(9) (13)
(14)
(1) (5)
(10)
(6)
(2)
(4)
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0005070