Cylinder block and crank connecting rod mechanisms
74
Installation of piston ring
1. As shown in Fig., below, contain the corrugated ring into the groove of piston ring,
and then contain one end of the oil control ring into the groove, and then press in
other parts in place. Afterward, check whether all rings can slide smoothly in both
directions.
Caution
l Do not use the piston ring expander to fit the oil control ring, otherwise it
will result in breakage.
2. Use a piston ring extender to fit the 2
nd
and 1
st
piston control rings. Face the mark
upward at the time of installation
3. Align with the notch of each ring as per the figure below.
Installation of piston connecting rod assembly
1. The arrow on the top of piston aims to the front of engine.
2. When the connecting rod cap is fitted, the positioning sign of connecting rod cap shall
be aligned.
Head face of oil control ring
Notch of upper oil control ring
Notch of lower oil control ring
Notch of the 1
ring
Opening of corrugated ring
Piston pin
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