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SERVICING INFORMATION 9-24
CYLINDER
4-
PISTON
+
PISTON RING
Unit:
mrn
(in)
ITEM
-
Compression pressure
STANDARD
-
8
-
12 kg/cm2
(1
13-76
-
170.64
psi)
LIMIT
7 kg/cm2
(99.5
psi1
Compression pressure difference
Piston
to cylinder clearance
Cylinder bore
Piston d i m .
Cylinder distortion
Piston ring free
end
gap
0.050
-
0.060
(0,0020
-
0.0024)
72.000
-
72.01 5
(2.8345
-
2.8352)
-
71.945
-
71.960
(2.8325
-
2.8331
)
Measure a t the 17
(0.7)
from skirt end.
1 s t
2nd
Piston ring end gap
1
1st
F J
N
0.10
-
0.30
(0.004
-
0.01 2)
0.10
-
0.30
(0.004
-
0.012)
)
p
p
1.025
-
1.045
(0.0404
-
0.04 1
11
1.210
-
1.230
(0.0476
-
0.0484j
2.51 0
-
2.530
(0.0988
-
0.09963
'
0.975
-
0.990
(0.0384
-
0,0390)
-
-
Piston
ring
t o
groove clearance
Piston ring
groove width
Piston ring thickness
,
Approx.
9.5 (0.37)
Approx. 11.0
(0.43)
I
0.7
(0.03)
0 . 7
(0.03)
0.180
10.0071)
0.1
50
(0,0059)
2nd
1
s t
2nd
I
st
2nd
Oil
1st
18.030
(0.7098)
I
2nd
1.170
-
1.190
(0.0461
-
0,0469)
Piston
pin
O.D.
Piston pin bore
18.002
-
18.008
(0,7087
-
0.7090)
17.995
-
18.000
1
17.980
(0.7085
-
0.7087)
(0.7079)
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