SERVICE DATA

CYLINDER+PISTON+PISTON RING

Unit: mm(in)

ITEM
STANDARD
LIMIT
Piston to cylinder clearance
0.055-0.065
(0.0022-0.0026)
0.120
(0.0047)
Cylinder bore
79.000-79.015
(3.1102-3.1108)
79.075
(3.1132)
Piston diam.
78.940-78.955
(3.1079-3.1085)
Measure at 15mm(0.6in) from the skirt end.
78.880
(3.1055)
Cylinder distortion

-

0.05
(0.002)
Piston ring free end gap
1st
R
Approx. 10.2(0.40)
8.2
(0.32)
2nd
R
Approx. 11.1(0.44)
8.9
(0.35)
Piston ring end gap
1st
0.15-0.30
(0.006-0.012)
0.70
(0.028)
2nd
0.35-0.50
(0.014-0.020)
0.70
(0.028)
Piston ring to groove clearance
1st
-
0.180
(0.007)
2nd
-
0.150
(0.006)
Piston ring groove width
1st
1.01-1.03
(0.040-0.041)
-
2nd
1.01-1.03
(0.040-0.041)
-
Oil
2.01-2.03
(0.079-0.080)
-
Piston ring thickness
1st
0.97-0.99
(0.038-0.039)
-
2nd
0.97-0.99
(0.038-0.039)
-
Piston pin bore
20.002-20.008
(0.7875-0.7877)
20.030
(0.7886)
Piston pin O.D.
19.996-20.000
(0.7872-0.7874)
19.980
(0.7866)

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