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8.
CYLINDER/PISTON
SERVICE
INFORMATION
8-1
CYLINDER/PISTON INSPECTION
8-3
TROUBLESHOOTING
8-2
CYLINDER/PISTON INSTALLATION
8-6
CYUNDER/P1ST0N
REMOVAL
8-3
SERVICE
INFORMATION
GENERAL
•
This section covers corvioe of the cylinder
and
pieton.
•
Cylinder
head
lubricating
oil
is
fed
through an
oil
passage
in
the
cylinder.
Be
sure
this
oil
passage
is
not clogged
and
that
the O-rings
and dowel
pins are
in
place before
Installation.
•
When
disassembling,
mark and
store the
disassembled
parts
to
ensure
that
they
are
reinstalled
in their original loca-
tions.
•
Clean
all
disassembled
parts
with cleaning solvent
and
dry
them
by blowing
them
off
with
compressed
air
before
Inspection.
•
Refer
to
section
1
1
for
the
cam
chain tensioner
removal
and
inspection.
SPECIFICATIONS
Unit
mm
(in)
ITEM
STANDARD
SERVICE
LIMIT
Cylinder
I.D.
53.000 - 53.010 12.0866
-
2.0870)
63.10(2.091)
Out
of
round
0.05
(0.002)
Taper
0.05
(0.002)
Warpage
0.05
(0.002)
PtotOM.
pis-
ton
ring
Piston
mark
direction
"IN"
mark
facing
toward
the
intake
side
Piston O.D.
52.970 - 52.990 <2.0854
-
2.0862)
52.90
(2.083)
Piston
O.D.
measurement
point
10
mm
(0.4
in)
from bottom
of
skirt
—
Piston pin
bore
I.D.
15.002
-
15.008 (0.5906
-
0.5909)
15.05 (0.593)
Piston pin O.D.
14.994
-
16.000 (0.5903
-
0.5906)
14.98
(0.590)
Piston-to-piston pin
clearance
C.002
-
0.0
1
4
(0.0001
-
0.00C6'
0.07
(0.003)
Piston
ring-to-rlng
Top
0.015
-
0.045 (0.0006
-
0.0018)
0.10(0.004)
groove
clearance
Second
0.015
0.050 (0.0006
-
0.0020)
0 10(0.004)
gap
Second
0.30
0.45(0.012
0.018)
0.60 (0.024)
Oil (side
rail)
0.2
-
0.7
(0.01
-
0.03)
0.90 (0.035)
Cylinder-to-piston clearance
0.010 - 0.040 (0.0004
-
0.0016)
0.10
(0.004)
Connecting rod
small
end
I.D.
15.016
-
16.034 (0.6912
-
0.5919)
15.08
(0.594)
Connecting
rod-topiston
pin
clearance
0.016 - 0.040
(0.0006
-
0.0016)
0.10
(0.004)
TOOL
Piston
base
07958
-
3000000
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