Yanmar 6LPA-STP2 Service Manual page 145

Cylinder Block
12/05
18. Install the outside 15 main bearing cap bolts (6
pointed head) (Figure 5-148).
• Torque: 185 kgf·cm, 18.13 N·m (13.3 lb-ft)
Figure 5-148
Figure 5-148
19. Inspect the thrust clearance of the crankshaft.
See step 15 starting in Cylinder Block
Disassembly on page 5-42.
20. Install each piston and connecting rod
assembly into its corresponding cylinder, using
the piston ring compressor (special tool
P/N: 95550-002476) (Figure 5-149, (1)). Align
the pistons with the front mark arrow
(Figure 5-149, (2)) facing the front.
Note: Position the cylinder block horizontally to
allow easier installation of the piston and
connecting rod assembly. Install the
crankshaft pulley temporarily to keep the
crankshaft from rotating freely. Use
special tool P/N 119770-01090 and
119770-01120.
Figure 5-149
(2)
Figure 5-149
6LPA Service Manual
0005071
(1)
0005072
© 2007 Yanmar Marine International
Over Size Piston
Ring Set 719775-22100
21. Install the connecting rod caps to each
connecting rod.
Note: Use the correct connecting rod cap
corresponding to each cylinder and rod.
Install the connecting rod cap with the
front mark (Figure 5-150, (1)) on the
connecting rod cap facing to the front.
Figure 5-150
(1)
Figure 5-150
22. Apply engine oil to the threads and seats of the
connecting rod cap bolts.
23. Install the connecting rod cap bolts and tighten
them alternatively in several passes
(Figure 5-151).
• Torque: 375 kgf·cm, 36.77 N·m (27.1 lb-ft)
Note: If any of the connecting rod cap bolts
fails to satisfy the torque specification,
replace the cap bolt.
Figure 5-151
Figure 5-151
ENGINE
Piston 0.5 mm (0.02 in.)
over size CMP
0005147
0005148
5-65