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Do no! damage the
Spread each piston ring and remove
it
by lifting up
piston ring by
at a point opposite the gap.
spreading the end
too
far.
Never use a wire
Clean carbon deposits from the piston ring grooves
brush;
If
wi/I scratch
with a
r
ing tha
t
will
be discarded
.
the
groove.
CYLINDER/PISTON INSPECTION
CYLINDER
Inspect the cyli nder bore
f
or scratch
or
wear.
Measure the
cylind
er I.D. at three levels in an X and
Y axis. Take the maximum reading to determine the
cylinder wear.
SERVICE
LIMIT:
102.05
mm (4.018
in
)
Calculate the cylinder-ta-piston clearance.
Measurement of the piston 0.0. (page 10-6)
SERVICE
LIMIT:
0.19
mm
(0.007 in)
Calcu
late the
cylinder
taper and out-af-round at
three levels in an X an
d
Y axis. Take the maximum
reading to determine the
t
aper and out-of-round.
SERVICE
LIMITS: Taper:
0.05 mm
(0.002 in)
Out of
round:
0.05
mm
(0.002 in)
MIDDLE
BOTTOM
CYLINDER/PISTON
--
-
-
/
,
,
/
-
--
/
,
,
/
-
-
"
--
10-5
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Table of Contents
Troubleshooting
