CHECKING
PISTON
RING CLEARANCE
1.
Put the piston ring in the cylinder.
2.
Turn
the piston upside down and push the ring into the cylinder with the piston head.
3.
Insert a feeler gauge into the piston ring gap.
4.
If the clearance exceeds the allowable limit, replace.
IMPORTANT:
Measure the piston ring gap at
the
point
of
the
minimum
inside diameter
of
the
cylinder
liner. See engine
specifications
..
CHECKING SIDE CLEARANCE OF RING
IN
GROOVE
1.
Remove the piston ring from the piston.
2.
Place the ring
in
its groove as it shown at left, and measure the clearance.
3.
If the clearance
is
not within the reference valve, replace the ring.
NOTE:
As
the top ring
is
a keystone type, it cannot
be
measured by this method. See engine
specifications.
142
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