wsm M6040 Workshop Manual page 190

M6040, M7040, WSM
Piston Ring and Connecting Rod
1. Remove the piston rings using a piston ring tool.
2. Remove the piston pin (1), and separate the connecting rod (4)
from the piston (3).
(When reassembling)
• Be sure to fix the crankpin bearing and the connecting rod are
same I.D. colors.
• When installing the ring, assemble the rings so that the
manufacture's mark (12) near the gap faces the top of the
piston.
• When installing the oil ring onto the piston, place the expander
joint (11) on the opposite side of the oil ring gap (10).
• Apply engine oil to the piston pin.
• When installing the piston pin, immerse the piston in 80 °C
(176 °F) oil for 10 to 15 minutes and insert the piston pin to the
piston
• Assemble the piston to the connecting rod with the ↑ mark (2)
and the connecting rod numbering mark (9) facing same side.
• The end faces of the oil ring are plated with hard chrome. In
putting the piston into the cylinder, be careful not to get the oil
ring scratched by the cylinder. Use the piston ring fitter to tighten
up the oil ring. If the ring's planting is scratched, it may get stuck
on the cylinder wall, causing a serious trouble.
IMPORTANT
• Mark the same number on the connecting rod and the
piston so as not to change the combination.
(1) Piston Pin
(2) Mark (↑)
(3) Piston
(4) Connecting Rod
(5) Piston Pin Snap Pin
(6) Top Ring
(7) Second Ring
(8) Oil Ring
(9) Numbering Mark
1-S58
ENGINE
(10) Oil Ring Gap
(11) Expander Joint
(12) Manufacture's Mark
(A) Connecting Rod ID Color: Blue
or without Color
(B) Crankpin Bearing ID Color: Blue
or without Color
9Y1210143ENS0084US0
KiSC issued 07, 2012 A