Infiniti G20 (P11). Manual — part 398
Crankshaft
NCEM0036
Unit: mm (in)
Main journal dia. “Dm”
Grade No. 0
54.974 - 54.980 (2.1643 - 2.1646)
Grade No. 1
54.968 - 54.974 (2.1641 - 2.1643)
Grade No. 2
54.962 - 54.968 (2.1639 - 2.1641)
Grade No. 3
54.956 - 54.962 (2.1636 - 2.1639)
Pin journal dia. “Dp”
Grade No. 0
47.968 - 47.974 (1.8885 - 1.8887)
Grade No. 1
47.962 - 47.968 (1.8883 - 1.8885)
Grade No. 2
47.956 - 47.962 (1.8880 - 1.8883)
Center distance “r”
42.96 - 43.04 (1.6913 - 1.6945)
Out-of-round (X − Y)
Standard
Main journal
Less than 0.005 (0.0002)
Pin journal
Less than 0.003 (0.0001)
Taper (A − B)
Standard
Main journal
Less than 0.005 (0.0002)
Pin journal
Less than 0.0025 (0.0001)
Runout [TIR]
Standard
Less than 0.025 (0.0010)
Limit
Less than 0.05 (0.0020)
Free end play
Standard
0.10 - 0.26 (0.0039 - 0.0102)
Limit
0.30 (0.0118)
SEM954C
EM715
GI
MA
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Crankshaft
EM-77
Main Bearing
NCEM0037
SEM685D
STANDARD
NCEM0037S01
Unit: mm (in)
Grade number
Thickness “T”
Width “W”
Identification color (mark)
0
1.977 - 1.980 (0.0778 - 0.0780)
18.9 - 19.1 (0.744 - 0.752)
Black (A)
1
1.980 - 1.983 (0.0780 - 0.0781)
Brown (B)
2
1.983 - 1.986 (0.0781 - 0.0782)
Green (C)
3
1.986 - 1.989 (0.0782 - 0.0783)
Yellow (D)
4
1.989 - 1.992 (0.0783 - 0.0784)
Blue (E)
5
1.992 - 1.995 (0.0784 - 0.0785)
Pink (F)
6
1.995 - 1.998 (0.0785 - 0.0787)
No color (G)
UNDERSIZE
NCEM0037S02
Unit: mm (in)
Undersize
Thickness “T”
Main journal diameter “Dm”
0.25 (0.0098)
2.109 - 2.117 (0.0830 - 0.0833)
Grind so that bearing clearance is the specified
value.
Connecting Rod Bearing
NCEM0038
STANDARD SIZE
NCEM0038S01
Unit: mm (in)
Grade number
Thickness “T”
Width “W”
Identification color (mark)
0
1.500 - 1.503 (0.0591 - 0.0592)
16.9 - 17.1 (0.665 - 0.673)
No color (A)
1
1.503 - 1.506 (0.0592 - 0.0593)
Black (B)
2
1.506 - 1.509 (0.0593 - 0.0594)
Brown (C)
UNDERSIZE
NCEM0038S02
Unit: mm (in)
Undersize
Thickness “T”
Crank pin journal diameter “Dp”
0.08 (0.0031)
1.541 - 1.549 (0.0607 - 0.0610)
Grind so that bearing clearance is the specified
value.
0.12 (0.0047)
1.561 - 1.569 (0.0615 - 0.0618)
0.25 (0.0098)
1.626 - 1.634 (0.0640 - 0.0643)
SERVICE DATA AND SPECIFICATIONS (SDS)
Main Bearing
EM-78
Bearing Clearance
NCEM0039
Unit: mm (in)
Main bearing clearance
Standard
0.004 - 0.022 (0.0002 - 0.0009)
Limit
0.05 (0.0020)
Connecting rod bearing clearance
Standard
0.020 - 0.045 (0.0008 - 0.0018)
Limit
0.065 (0.0026)
Miscellaneous Components
NCEM0040
Unit: mm (in)
Camshaft sprocket runout limit [TIR]
0.25 (0.0098)
Flywheel runout limit [TIR]
0.15 (0.0059)
Drive plate runout limit [TIR]
0.2 (0.008)
GI
MA
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Bearing Clearance
EM-79
NOTES
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