Piston; Piston Ring - Yanmar 3JH3E Service Manual

Chapter 10 Disassembly and Reassembly
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.1,4JH3(B)(CJE
4-4 Piston
Model
ltem
Piston outer dia.
L mark
ML mark
Piston outer dia.
MS mark
S mark
Minimum gap between pistons and cylinders
Top clearance
Piston and Piston pin
4-5 Piston ring
Item
Top ring
Second ring
Oil ring
Printed in Japan
HIXSHl•H8009
Piston pin outer dia.
Piston pin hole inner dia.
Oil clearance
Model
--------------
·--------
Ring groove width
B measurements
Minimum gap between groove and ring
Clearance
Ring groove width
B measurements
Minimum gap between groove and ring
Clearance
Ring groove width
B measuremenls
Minimum gap between groove and ring
Clearance
10-37
(mm}
3JH3{B)(C}E 4JH3(B)(C)E
Standard Limit
83.945~83.975
83.965~83.975
83.960~83.965
83.90
83.955~83.960
83.945~83.955
0.040~0.070
~~--
0.660~0.780
---
25.987~26.000 25.90
26. 000~26 .009 26.02
0.000~0.022 0.12
(mm)
3JH3(B)(C)E
4JH3{B)(C)E
Standard limit
2.065~2.080
- -
i.970~1.990
- -
0.075~0.110
--·~
0.200~0.400 1.5
2.035~2.050
~-
.....
---
1.970~1.990
- -
0.045~0.080
~-
0.200~0.400 1.5
4.015~4.030 -·~·~
3.970~3.990
- " ' " ~
0.025~0.060
-MM-
0.200~0.450 1,5