Infiniti QX4 (R50). Manual — part 90
Return Springs
NBAT0165
Unit: mm (in)
Parts
Item
Part No.*
Free length
Outer diameter
Control valve
Upper body
1
Torque converter relief valve spring
31742-41X23
38.0 (1.496)
9.0 (0.354)
2
Pressure regulator valve spring
31742-41X24
44.02 (1.7331)
14.0 (0.551)
3
Pressure modifier valve spring
31742-41X19
31.95 (1.2579)
6.8 (0.268)
—
Accumulator control valve spring
—
—
—
4
Shuttle shift valve D spring
31762-41X01
25.0 (0.984)
7.0 (0.276)
5
4-2 sequence valve spring
31756-41X00
29.1 (1.146)
6.95 (0.2736)
6
Shift valve B spring
31762-41X01
25.0 (0.984)
7.0 (0.276)
7
4-2 relay valve spring
31756-41X00
29.1 (1.146)
6.95 (0.2736)
8
Shift valve A spring
31762-41X01
25.0 (0.984)
7.0 (0.276)
9
Overrun clutch control valve spring
31762-41X03
23.6 (0.929)
7.0 (0.276)
10
Overrun clutch reducing valve spring
31742-41X14
38.9 (1.531)
7.0 (0.276)
11
Shuttle shift valve S spring
31762-41X04
51.0 (2.008)
5.65 (0.2224)
12
Pilot valve spring
31742-41X13
25.7 (1.012)
9.0 (0.354)
13
Torque converter clutch control valve spring
31742-41X22
18.5 (0.728)
13.0 (0.512)
Lower body
1
Modifier accumulator piston spring
31742-27X70
31.4 (1.236)
9.8 (0.386)
2
1st reducing valve spring
31756-60X00
20.5 (0.807)
7.0 (0.276)
3
3-2 timing valve spring
31742-41X06
23.0 (0.906)
6.7 (0.264)
4
Servo charger valve spring
31742-41X06
23.0 (0.906)
6.7 (0.264)
Reverse clutch
—
31505-41X07
—
—
High clutch
10 pcs
31521-41X03
(Assembly)
24.2 (0.9528)
11.6 (0.457)
Forward clutch (Overrun clutch)
20 pcs
31521-41X04
(Assembly)
35.77 (1.4083)
9.7 (0.382)
Low & reverse brake
18 pcs
31655-41X00
(Assembly)
22.3 (0.878)
11.2 (0.441)
Band servo
Spring A
31605-4AX03
45.6 (1.795)
34.3 (1.350)
Spring B
31605-41X01
29.7 (1.169)
27.6 (1.087)
Accumulator
Accumulator A
31605-41X02
43.0 (1.693)
18.0 (0.709)
Accumulator B
31605-41X14
47.6 (1.874)
26.5 (1.043)
Accumulator C
31605-41X09
45.0 (1.772)
29.3 (1.154)
Accumulator D
31605-41X06
58.4 (2.299)
17.3 (0.681)
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Return Springs
AT-357
Accumulator O-ring
NBAT0166
Accumulator
Diameter mm (in)
A
B
C
D
Small diameter end
29 (1.14)
32 (1.26)
45 (1.77)
29 (1.14)
Large diameter end
45 (1.77)
50 (1.97)
50 (1.97)
45 (1.77)
Clutches and Brakes
NBAT0167
REVERSE CLUTCH
NBAT0167S01
Code number
4EX16
4EX17
Number of drive plates
2
Number of driven plates
2
Thickness of drive plate mm (in)
Standard
1.90 - 2.05 (0.0748 - 0.0807)
Wear limit
1.80 (0.0709)
Clearance mm (in)
Standard
0.5 - 0.8 (0.020 - 0.031)
Allowable limit
1.2 (0.047)
Thickness of retaining plate
Thickness mm (in)
Part number*
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205)
5.4 (0.213)
31537-42X20
31537-42X21
31537-42X22
31537-42X23
31537-42X24
HIGH CLUTCH
NBAT0167S02
Code number
4EX16
4EX17
Number of drive plates
5
Number of driven plates
6
Thickness of drive plate mm (in)
Standard
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.40 (0.0551)
Clearance mm (in)
Standard
1.8 - 2.2 (0.071 - 0.087)
Allowable limit
3.2 (0.126)
Thickness of retaining plate
Thickness mm (in)
Part number*
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
31537-41X63
31537-41X64
31537-41X65
31537-41X66
31537-41X67
31537-41X68
SERVICE DATA AND SPECIFICATIONS (SDS)
Accumulator O-ring
AT-358
FORWARD CLUTCH
NBAT0167S03
Code number
4EX16
4EX17
Number of drive plates
7
8
Number of driven plates
7
8
Thickness of drive
plate mm (in)
Standard
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.40 (0.0551)
Clearance mm (in)
Standard
0.35 - 0.75 (0.0138 - 0.0295)
Allowable limit
2.15 (0.0846)
2.35 (0.0925)
Thickness of retaining plate
Thickness mm (in)
Part number*
Thickness mm (in)
Part number*
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205)
5.4 (0.213)
5.6 (0.220)
31537-42X13
31537-42X14
31537-42X15
31537-4AX00
31537-4AX01
31537-4AX02
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205)
5.4 (0.213)
31537-42X11
31537-42X12
31537-42X13
31537-42X14
31537-42X15
31537-4AX00
31537-4AX01
OVERRUN CLUTCH
NBAT0167S04
Code number
4EX16
4EX17
Number of drive plates
3
Number of driven plates
5
Thickness of drive plate mm (in)
Standard
1.90 - 2.05 (0.0748 - 0.0807)
Wear limit
1.80 (0.0709)
Clearance mm (in)
Standard
1.0 - 1.4 (0.039 - 0.055)
Allowable limit
2.0 (0.079)
Thickness of retaining plate
Thickness mm (in)
Part number*
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
31537-41X80
31537-41X81
31537-41X82
31537-41X83
31537-41X84
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Clutches and Brakes (Cont’d)
AT-359
LOW & REVERSE BRAKE
NBAT0167S05
Code number
4EX16
4EX17
Number of drive plates
8
Number of driven plates
8
Thickness of drive plate mm (in)
Standard
1.90 - 2.05 (0.0748 - 0.0807)
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.40 (0.0551)
Clearance mm (in)
Standard
0.8 - 1.1 (0.031 - 0.043)
Allowable limit
2.7 (0.106)
Thickness of retaining plate
Thickness mm (in)
Part number*
7.6 (0.299)
7.8 (0.307)
8.0 (0.315)
8.2 (0.323)
8.4 (0.331)
8.6 (0.339)
8.8 (0.346)
9.0 (0.354)
9.2 (0.362)
9.4 (0.370)
9.6 (0.378)
31667-41X07
31667-41X08
31667-41X00
31667-41X01
31667-41X02
31667-41X03
31667-41X04
31667-41X05
31667-41X06
31667-41X09
31667-41X10
BRAKE BAND
NBAT0167S06
Anchor end bolt nut tightening torque
40 - 51 N·m (4.1 - 5.2 kg-m, 30 - 38 ft-lb)
Anchor end bolt tightening torque
4 - 6 N·m (0.4 - 0.6 kg-m, 35 - 52 in-lb)
Number of returning revolution for anchor end bolt
2.5
Oil Pump and Low One-way Clutch
NBAT0168
Unit: mm (in)
Oil pump clearance
Cam ring — oil pump housing
Standard
0.01 - 0.024 (0.0004 - 0.0009)
Rotor, vanes and control piston — oil
pump housing
Standard
0.03 - 0.044 (0.0012 - 0.0017)
Seal ring clearance
Standard
0.10 - 0.25 (0.0039 - 0.0098)
Allowable limit
0.25 (0.0098)
Total End Play
NBAT0169
Total end play “T
1
”
0.25 - 0.55 mm (0.0098 - 0.0217 in)
Thickness of oil pump cover bearing race
Thickness mm (in)
Part number*
0.8 (0.031)
1.0 (0.039)
1.2 (0.047)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)
2.0 (0.079)
31435-41X01
31435-41X02
31435-41X03
31435-41X04
31435-41X05
31435-41X06
31435-41X07
SERVICE DATA AND SPECIFICATIONS (SDS)
Clutches and Brakes (Cont’d)
AT-360
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