Parsun F15/F9.9BM, Service Manual

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Install piston, connecting rod, piston pin and piston pin circlip
NOTE:
When installing, make sure that the mark on the connecting rod is on the same side as the mark on the
piston crown.
Piston ring installation
1. Install oil ring, 2nd ring and top ring.
NOTE:
Make sure that the mark is toward the piston crown when installing the 2nd ring.
2. Picture of the piston ring gap
Oil ring end gap 1 (lower rail)
Oil ring end gap 2 (expanded ring)
Oil ring end gap 3 (upper rail)
2nd piston ring end gap 4
Top piston ring end gap 5
Piston installation
Use piston slider to install piston, and make sure that the piston crown “UP” is toward the flywheel side.
NOTE:
Apply engine oil to the piston and piston ring side when installing.
Crankshaft installation
1. Install the crankshaft and main bearing to cylinder body. Install oil seal.
NOTE:
Apply grease onto new oil seal before installing.
2.
Install connecting rod cover, and tighten the connecting rod bolt to the specified torque.
Tighten torque: First tightening
10 Nm
Second tightening 21Nm
NOTE:
Apply engine oil to moving parts before installing.
UP
1
3 2
4 5
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