Infiniti F50. Manual — part 554
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
EM-104
SERVICE DATA AND SPECIFICATIONS (SDS)
Piston Ring
Unit: mm (in)
Piston Pin
Unit: mm (in)
CONNECTING ROD
Unit: mm (in)
*: After installing in connecting rod
Items
Standard
Limit
Side clearance
Top
0.045 - 0.080 (0.0018 - 0.0031)
0.11 (0.0043)
2nd
0.030 - 0.070 (0.0012 - 0.0028)
0.10 (0.004)
Oil ring
0.065 - 0.135 (0.0026 - 0.0053)
—
End gap
Top
0.22 - 0.32 (0.0087 - 0.0126)
0.56 (0.0220)
2nd
0.22 - 0.32 (0.0087 - 0.0126)
0.52 (0.0205)
Oil (rail ring)
0.20 - 0.60 (0.0079 - 0.0236)
0.96 (0.0378)
Piston pin outer diameter
Grade No.0
21.989 - 21.995 (0.8657 - 0.8659)
Grade No.1
21.995 - 22.001 (0.8659 - 0.8662)
Interference fit of piston pin to piston
Standard
0.002 - 0.006 (0.0001 - 0.0002)
Piston pin to connecting rod bushing clearance
Standard
0.005 - 0.017 (0.0002 - 0.0007)
Center distance
146.95 - 147.05 (5.79 - 5.79)
Bend [per 100 (3.94)]
Limit
0.15 (0.0059)
Torsion [per 100 (3.94)]
Limit
0.30 (0.0118)
Connecting rod small end inner diameter
24.980 - 25.000 (0.9835 - 0.9843)
Piston pin bushing inner diame-
ter*
Grade No. 0
22.000 - 22.006 (0.8661 - 0.8664)
Grade No. 1
22.006 - 22.012 (0.8664 - 0.8666)
Connecting rod big end inner diameter
55.000 - 55.013 (2.1654 - 2.1659)
Side clearance
Standard
0.20 - 0.35 (0.0079 - 0.0138)
Limit
0.40 (0.0157)
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-105
C
D
E
F
G
H
I
J
K
L
M
A
EM
CRANKSHAFT
Unit: mm (in)
Main journal dia. “Dm” grade
(No.1 and 5)
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
Grade No. 3
Grade No. 4
Grade No. 5
Grade No. 6
Grade No. 7
Grade No. 9
63.963 - 63.964 (2.5182 - 2.5183)
63.962 - 63.963 (2.5182 - 2.5182)
63.961 - 63.962 (2.5181 - 2.5182)
63.960 - 63.961 (2.5181 - 2.5181)
63.959 - 63.960 (2.5181 - 2.5181)
63.958 - 63.959 (2.5180 - 2.5181)
63.957 - 63.958 (2.5180 - 2.5180)
63.956 - 63.957 (2.5179 - 2.5180)
63.955 - 63.956 (2.5179 - 2.5179)
63.954 - 63.955 (2.5179 - 2.5179)
63.953 - 63.954 (2.5178 - 2.5179)
63.952 - 63.953 (2.5178 - 2.5178)
63.951 - 63.952 (2.5178 - 2.5178)
63.950 - 63.951 (2.5177 - 2.5178)
63.949 - 63.950 (2.5177 - 2.5177)
63.948 - 63.949 (2.5176 - 2.5177)
63.947 - 63.948 (2.5176 - 2.5176)
63.946 - 63.947 (2.5176 - 2.5176)
63.945 - 63.946 (2.5175 - 2.5176)
63.944 - 63.945 (2.5175 - 2.5175)
63.943 - 63.944 (2.5174 - 2.5175)
63.942 - 63.943 (2.5174 - 2.5174)
63.941 - 63.942 (2.5174 - 2.5174)
63.940 - 63.941 (2.5173 - 2.5174)
Main journal dia. “Dm” grade
(No.2, 3 and 4)
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
63.963 - 63.964 (2.5182 - 2.5183)
63.962 - 63.963 (2.5182 - 2.5182)
63.961 - 63.962 (2.5181 - 2.5182)
63.960 - 63.961 (2.5181 - 2.5181)
63.959 - 63.960 (2.5181 - 2.5181)
63.958 - 63.959 (2.5180 - 2.5181)
63.957 - 63.958 (2.5180 - 2.5180)
63.956 - 63.957 (2.5179 - 2.5180)
63.955 - 63.956 (2.5179 - 2.5179)
63.954 - 63.955 (2.5179 - 2.5179)
63.953 - 63.954 (2.5178 - 2.5179)
63.952 - 63.953 (2.5178 - 2.5178)
63.951 - 63.952 (2.5178 - 2.5178)
63.950 - 63.951 (2.5177 - 2.5178)
63.949 - 63.950 (2.5177 - 2.5177)
63.948 - 63.949 (2.5176 - 2.5177)
63.947 - 63.948 (2.5176 - 2.5176)
63.946 - 63.947 (2.5176 - 2.5176)
63.945 - 63.946 (2.5175 - 2.5176)
63.944 - 63.945 (2.5175 - 2.5175)
63.943 - 63.944 (2.5174 - 2.5175)
63.942 - 63.943 (2.5174 - 2.5174)
63.941 - 63.942 (2.5174 - 2.5174)
63.940 - 63.941 (2.5173 - 2.5174)
Pin journal dia. “Dp”
Grade No. 0
51.968 - 51.974 (2.0460 - 2.0462)
Grade No. 1
51.962 - 51.968 (2.0457 - 2.0460)
Grade No. 2
51.956 - 51.962 (2.0455 - 2.0457)
Center distance “r”
41.31 - 41.39 (1.6264 - 1.6295)
Out-of-round (X
−
Y)
Limit
0.015 (0.0006)
Taper (A
−
B)
Limit
0.010 (0.0004)
Runout [TIR*]
Limit
0.05 (0.0020)
EM-106
SERVICE DATA AND SPECIFICATIONS (SDS)
*: Total indicator reading
MAIN BEARING
Unit: mm (in)
Free end play
Standard
0.10 - 0.25 (0.0039 - 0.0098)
Limit
0.30 (0.0118)
SEM645
SEM715
Grade number
Thickness
Identification color
(UPR/LWR)
Remarks
0
2.483 - 2.486 (0.0978 - 0.0979)
Black
Grade and color are the same
for upper and lower bearings.
1
2.486 - 2.489 (0.0979 - 0.0980)
Brown
2
2.489 - 2.492 (0.0980 - 0.0981)
Green
3
2.492 - 2.495 (0.0981 - 0.0982)
Yellow
4
2.495 - 2.498 (0.0982 - 0.0983)
Blue
5
2.498 - 2.501 (0.0983 - 0.0985)
Pink
6
2.501 - 2.504 (0.0985 - 0.0986)
Purple
7
2.504 - 2.507 (0.0986 - 0.0987)
White
8
2.507 - 2.510 (0.0987 - 0.0988)
Red
PBIC0189E
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