Infiniti G37 Coupe. Manual - part 642
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-143
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
*
1
: Diameter made by intersection point of conic angles “
α
1” and “
α
2”
*
2
: Diameter made by intersection point of conic angles “
α
2” and “
α
3”
*
3
: Machining data
*
4
: Parts settings are for exhaust side only
VALVE SPRING
Cylinder Block
INFOID:0000000001547546
CYLINDER BLOCK
Valve seat interference fit
Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
0.064 - 0.096 (0.0025 - 0.0038)
Diameter “d1”*
1
Intake
34.6 (1.362)
Exhaust
27.7 (1.091)
Diameter “d2”*
2
Intake
35.9 - 36.4 (1.413 - 1.433)
Exhaust
29.3 - 29.8 (1.154 - 1.173)
Angle “
α
1”
Intake
60
°
Exhaust
60
°
Angle “
α
2”
Intake
88
°
45
′
- 90
°
15
′
Exhaust
88
°
45
′
- 90
°
15
′
Angle “
α
3”
Intake
120
°
Exhaust
120
°
Contacting width “W”*
3
Intake
1.0 - 1.4 (0.039 - 0.055)
Exhaust
1.2 - 1.6 (0.047 - 0.063)
Height “h”
Intake
5.9 - 6.0 (0.232 - 0.236)
—
Exhaust
5.9 - 6.0 (0.232 - 0.236)
4.95 - 5.05 (0.1949 - 0.1988)*
4
Depth “H”
6.0 (0.236)
Item
Standard
Intake
Exhaust
Free height
45.66 mm (1.7976 in)
43.85 mm (1.7264 in)
Pressure
Installation
191.1 - 215.5 N (19.5 - 22 kg, 43 - 48 lb)
at 40.90 mm (1.6102 in)
166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
at 37.00 mm (1.4567 in)
Valve open
830.9 - 936.9 N (84.8 - 95.6 kg, 187 - 211 lb)
at 28.07 mm (1.1051 in)
502 - 566 N (51.2 - 57.7 kg, 113 - 127 lb)
at 26.80 mm (1.0551 in)
Identification color
Purple
Yellowish green
Item
Limit
Intake
Exhaust
Out-of-square
2.0 mm (0.079 in)
1.9 mm (0.075 in)