SERVICE DATA AND SPECIFICATIONS (SDS)
EM-103
C
D
E
F
G
H
I
J
K
L
M
A
EM
PISTON, PISTON RING AND PISTON PIN
Available Piston
Unit: mm (in)
Main journal inner
diameter grade
(Without bearing)
Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 1
Grade No. 2
68.944 - 68.945 (2.7143 - 2.7144)
68.945 - 68.946 (2.7144 - 2.7144)
68.946 - 68.947 (2.7144 - 2.7144)
68.947 - 68.948 (2.7144 - 2.7145)
68.948 - 68.949 (2.7145 - 2.7145)
68.949 - 68.950 (2.7145 - 2.7146)
68.950 - 68.951 (2.7146 - 2.7146)
68.951 - 68.952 (2.7146 - 2.7146)
68.952 - 68.953 (2.7146 - 2.7147)
68.953 - 68.954 (2.7147 - 2.7147)
68.954 - 68.955 (2.7147 - 2.7148)
68.955 - 68.956 (2.7148 - 2.7148)
68.956 - 68.957 (2.7148 - 2.7148)
68.957 - 68.958 (2.7148 - 2.7149)
68.958 - 68.959 (2.7149 - 2.7149)
68.959 - 68.960 (2.7149 - 2.7150)
68.960 - 68.961 (2.7150 - 2.7150)
68.961 - 68.962 (2.7150 - 2.7150)
68.962 - 68.963 (2.7150 - 2.7151)
68.963 - 68.964 (2.7151 - 2.7151)
68.964 - 68.965 (2.7151 - 2.7152)
68.965 - 68.966 (2.7152 - 2.7152)
68.966 - 68.967 (2.7152 - 2.7152)
68.967 - 68.968 (2.7152 - 2.7153)
Difference in
inner diameter
between cylinders
Standard
Less than 0.03 (0.0012)
Piston skirt diameter “A”
Standard
Grade No. 1
92.980 - 92.990 (3.6606 - 3.6609)
Grade No. 2
92.990 - 93.000 (3.6609 - 3.6614)
Grade No. 3
93.000 - 93.010 (3.6614 - 3.6618)
0.20 (0.0079) oversize (Service)
93.180 - 93.210 (3.6685 - 3.6697)
“H” dimension
42 (1.65)
Piston pin bore diameter
Grade No.0
21.993 - 21.999 (0.8659 - 0.8661)
Grade No.1
21.999 - 22.005 (0.8661 - 0.8663)
Piston clearance to cylinder block
Standard
0.010 - 0.030 (0.0004 - 0.0012)
Limit
0.08 (0.0031)
PBIC0188E