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Check the piston pin for wear. Measure
outside dia of piston pin at 3 points.
ASSEMBLY
EX
IN
Locate the oil ring expander into the oil ring
groove.
Slide the bottom rail to the bottom of the
expander.
Slide top rail to the top of the expander.
Place the second ring in piston (Index mark
"2 IP" facing upwards).
NOTE :
Second ring has a taper edge cross
section and is hard chrome plated.
Locate the top ring (Index mark "1 IP" facing
upwards).
NOTE :
Top ring has rectangular cross section
with black colour (Nitride coating).
Stagger piston rings end gap as shown in
Fig.
EX
NOTE :
After installation, the ring should rotate
freely rotatable in the ring grooves.
CAUTION :
Ensure the open end of any piston
ring does not align with the piston
pin boss.
Locate the piston on the connecting rod
and insert the piston pin into the piston.
Fit the circlips on either side and ensure
they are located properly in the grooves.
NOTE :
Carefully fix the piston pin clip into the
piston boss while covering Crank
case neck by shop towel / chamois
cloth as shown in Fig.
IN
05-63
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