Robin America EH63 Service Manual page 75

PISTON
* Ring groove side clearance
* Piston pin hole
* Piston pin outside dia.
* Clearance between piston and cylinder at
skirt area.
* Piston ring end gap
ITEM
Top
2nd
Oil ring
Top
2nd
Oil ring
– 72 –
STD
EH63
EH64 0.05 - 0.09
EH65 (0.0002 - 0.0035)
EH72
EH63
EH64 0.03 - 0.07
EH65 (0.0012 - 0.0028)
EH72
EH63
EH64 0.057 - 0.175
EH65 (0.0022 - 0.0069)
EH72
EH63
EH64
20.989 - 21.002
(0.8263 - 0.8269)
EH65
EH72
EH63
EH64
20.991 - 21.000
(0.8264 - 0.8268)
EH65
EH72
EH63
0.012 - 0.051
EH64
(0.0005 - 0.0020)
EH65
0 - 0.042
EH72
(0 - 0.001654)
EH63
EH64 0.2 - 0.4
EH65 (0.0079 - 0.0157)
EH72
EH63
0.2 - 0.7
EH64
EH65 (0.0079 - 0.0276)
EH72
Unit : mm(in.)
Limit
0.15
(0.006)
0.15
(0.006)
0.15
(0.006)
21.035
(0.8281)
20.960
(0.8251)
0.25
(0.0098)
0.25
(0.0098)
1.5
(0.0591)
1.5
(0.0591)