Yanmar 6LPA-STP2, Руководство по обслуживанию

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ENGINE
6LPA Service Manual 5-53
Cylinder Block
12/05
© 2007 Yanmar Marine International
7. Measure the outside diameter of the main
bearing cap bolt threads using calipers
(Figure 5-105). Check for damaged or seized
threads.
• Standard outside diameter: 11.800 to
12.000 mm (0.46 to 0.47 in.)
• Minimum outside diameter: 11.50 mm
(0.45 in.)
If the measured outside diameter is below the
specified minimum, replace the bolt(s).
Figure 5-105
Figure 5-105
1 – Thread End
2 – 40 mm (1.57 in.)
Piston and Connecting Rod
Disassembly
1. Check the piston to piston pin fit by moving the
piston back and forth on the piston pin. If any
movement is felt, replace the piston and piston
pin as a set (Figure 5-106).
Figure 5-106
Figure 5-106
2. Remove the piston rings using the piston ring
expander (Figure 5-107).
Figure 5-107
Figure 5-107
3. Manually remove the coil for the oil ring. Store
the rings in the correct order for reassembly.
(1)
(2)
000502 8 0005029
00050 3 0