Infiniti Q45 (FY33). Manual — part 70
![](/vehicles/zatt/fitanyou/tushi/ero.png)
RETURN SPRINGS
Unit: mm (in)
Parts
Item
Part No.*
Free length
Outer diameter
Control
valve
Upper
body
q
1
Torque converter relief
valve spring
31742-41X23
38.0 (1.496)
9.0 (0.354)
q
2
Pressure regulator valve
spring
31742-41X24
44.02 (1.7331)
14.0 (0.551)
q
3
Pressure modifier valve
spring
31742-41X19
31.95 (1.2579)
6.8 (0.268)
q
4
Shuttle shift valve D
spring
31762-41X00
26.5 (1.043)
5.75 (0.2264)
q
5
4-2 sequence valve sprig
31756-41X00
29.1 (1.146)
6.95 (0.2736)
q
6
Shift valve B spring
31762-41X01
25.0 (0.984)
7.0 (0.276)
q
7
4-2 relay valve spring
31756-41X00
29.1 (1.146)
6.95 (0.2736)
q
8
Shift valve A spring
31762-41X01
25.0 (0.984)
7.0 (0.276)
q
9
Overrun clutch control
valve spring
31762-41X03
23.6 (0.929)
7.0 (0.276)
q
10
Overrun clutch reducing
valve spring
31742-41X63
32.5 (1.280)
7.0 (0.276)
q
11
Shuttle shift valve S
spring
31762-41X04
51.0 (2.008)
5.65 (0.2224)
q
12
Pilot valve spring
31742-41X13
25.7 (1.012)
9.1 (0.358)
q
13
Torque converter clutch
control valve spring
31742-41X22
18.5 (0.728)
13.0 (0.512)
Lower
body
q
1
Modifier accumulator pis-
ton spring
31742-27X70
31.4 (1.236)
9.8 (0.386)
q
2
1st reducing valve spring
31756-41X05
25.4 (1.000)
6.75 (0.2657)
q
3
3-2 timing valve spring
31742-41X06
23.0 (0.906)
6.7 (0.264)
q
4
Servo charger valve
spring
31742-41X06
23.0 (0.906)
6.7 (0.264)
Reverse clutch
12 pcs
31521-51X02
(Assembly)
40.0 (1.575)
14.8 (0.583)
High clutch
10 pcs
31521-51X03
(Assembly)
24.2 (0.953)
11.6 (0.457)
Forward clutch
(Overrun clutch)
20 pcs
31521-51X01
(Assembly)
36.8 (1.449)
10.7 (0.421)
Low & reverse brake
Inner spring
16 pcs
31505-51X06
20.43 (0.8043)
10.3 (0.406)
Outer spring
16 pcs
31505-51X05
20.35 (0.8012)
13.0 (0.512)
Band servo
Spring
q
A
31605-41X17
52.0 (2.047)
38.7 (1.524)
Spring
q
B
31605-41X01
29.7 (1.169)
27.6 (1.087)
Accumulator
Accumulator
q
A
31605-41X02
43.0 (1.693)
18.0 (0.709)
Accumulator
q
B
31605-41X10
66.0 (2.598)
20.0 (0.787)
Accumulator
q
C
31605-51X01
45.0 (1.772)
29.3 (1.154)
Accumulator
q
D
31605-41X06
58.4 (2.299)
17.3 (0.681)
*: Always check with the Parts Department for the latest parts information.
GI
MA
EM
LC
EC
FE
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Specifications and Adjustment (Cont’d)
AT-277
![](/vehicles/zatt/fitanyou/tushi/fsto.png)
ACCUMULATOR O-RING
Accumulator
Diameter mm (in)
q
A
q
B
q
C
q
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
Reverse clutch
Number of drive plates
3
Number of driven plates
3
Thickness of drive plate
mm (in)
Standard
1.90 - 2.05 (0.0748 - 0.0807)
Wear limit
1.8 (0.071)
Clearance
mm (in)
Standard
0.6 - 0.9 (0.024 - 0.035)
Allowable limit
1.5 (0.059)
Thickness of retaining plate
Thickness
mm (in)
Part number*
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
31537-51X61
31537-51X00
31537-51X01
31537-51X02
High clutch
Number of drive plates
6
Number of driven plates
6
Thickness of drive plate
mm (in)
Standard
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.4 (0.055)
Clearance
mm (in)
Standard
1.8 - 2.2 (0.071 - 0.087)
Allowable limit
3.4 (0.134)
Thickness of retaining plate
Thickness
mm (in)
Part number*
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
5.0 (0.197)
5.2 (0.205)
5.4 (0.213)
31537-51X61
31537-51X00
31537-51X01
31537-51X02
31537-51X03
31537-51X04
*: Always check with the Parts Department for the latest parts informa-
tion.
Forward clutch
Number of drive plates
6
Number of driven plates
8
Thickness of drive plate
mm (in)
Standard
1.90 - 2.05 (0.0748 - 0.0807)
Wear limit
1.6 (0.063)
Clearance
mm (in)
Standard
0.35 - 0.75 (0.0138 - 0.0295)
Allowable limit
1.95 (0.0768)
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)
5.6 (0.220)
5.8 (0.228)
31537-51X06
31537-51X07
31537-51X08
31537-51X09
31537-51X10
31537-51X69
31537-51X70
Overrun clutch
Number of drive plates
4
Number of driven plates
7
Thickness of drive plate
mm (in)
Standard
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.8 (0.071)
Clearance
mm (in)
Standard
1.0 - 1.4 (0.039 - 0.055)
Allowable limit
2.2 (0.087)
Thickness of retaining plate
Thickness
mm (in)
Part number*
3.8 (0.150)
4.0 (0.157)
4.2 (0.165)
4.4 (0.173)
4.6 (0.181)
4.8 (0.189)
31537-51X11
31537-51X12
31537-51X13
31537-51X14
31537-51X15
31537-51X64
*: Always check with the Parts Department for the latest parts informa-
tion.
SERVICE DATA AND SPECIFICATIONS (SDS)
Specifications and Adjustment (Cont’d)
AT-278
![](/vehicles/zatt/fitanyou/tushi/quenel.png)
Low & reverse brake
Number of drive plates
7
Number of driven plates
7
Thickness of drive plate
mm (in)
Standard
1.52 - 1.67 (0.0598 - 0.0657)
Wear limit
1.4 (0.055)
Clearance
mm (in)
Standard
0.50 - 0.80 (0.0197 - 0.0315)
Allowable limit
2.2 (0.087)
Thickness of retaining plate
Thickness
mm (in)
Part number*
3.6 (0.142)
4.0 (0.157)
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)
5.6 (0.220)
5.8 (0.228)
6.0 (0.236)
6.2 (0.244)
31667-51X12
31667-51X11
31667-51X10
31667-51X00
31667-51X01
31667-51X02
31667-51X03
31667-51X04
31667-51X05
31667-51X06
31667-51X07
31667-51X08
31667-51X09
Brake band
Anchor end pin nut tightening
torque
N
⋅
m (kg-m, ft-lb)
40 - 50
(4.1 - 5.2, 30 - 37)
Anchor end pin tightening
torque
N
⋅
m (kg-m, in-lb)
4 - 6
(0.4 - 0.6, 35 - 52)
Number of returning revolutions
for anchor end pin
2.5
*: Always check with the Parts Department for the latest parts informa-
tion.
OIL PUMP AND LOW ONE-WAY CLUTCH
Oil pump clearance
mm (in)
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
mm (in)
Standard
0.10 - 0.30 (0.0039 - 0.0118)
Allowable limit
0.30 (0.0118)
TOTAL END PLAY
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
*: Always check with the Parts Department for the latest parts informa-
tion.
REVERSE CLUTCH DRUM END PLAY
Reverse clutch drum end play
“T
2
”
0.55 - 0.90 mm
(0.0217 - 0.0354 in)
Thickness of oil pump thrust
washer
Thickness
mm (in)
Part number*
0.9 (0.035)
1.1 (0.043)
1.3 (0.051)
1.5 (0.059)
1.7 (0.067)
1.9 (0.075)
31528-21X01
31528-21X02
31528-21X03
31528-21X04
31528-21X05
31528-21X06
*: Always check with the Parts Department for the latest parts informa-
tion.
REMOVAL AND INSTALLATION
Manual control linkage
Number of returning
revolutions for lock nut
1
Lock nut tightening torque
18 - 23 N
⋅
m
(1.8 - 2.3 kg-m, 13 - 17 ft-lb)
Distance between end of converter
housing and torque converter
22.0 mm (0.866 in) or more
GI
MA
EM
LC
EC
FE
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Specifications and Adjustment (Cont’d)
AT-279
![](/vehicles/zatt/fitanyou/tushi/lbisomazath.png)
Shift Solenoid Valves
Gear position
1
2
3
4
Shift solenoid valve A
ON (Closed)
OFF (Open)
OFF (Open)
ON (Closed)
Shift solenoid valve B
ON (Closed)
ON (Closed)
OFF (Open)
OFF (Open)
Solenoid Valves
Solenoid valves
Resistance (Approx.)
Ω
Terminal No.
Shift solenoid valve A
20 - 40
3
Shift solenoid valve B
20 - 40
2
Overrun clutch solenoid valve
20 - 40
4
Line pressure solenoid valve
2.5 - 5
6
Torque converter clutch solenoid valve
10 - 20
7
A/T Fluid Temperature Sensor
Remarks: Specification data are reference values.
Monitor item
Condition
Specification (Approx.)
A/T fluid temperature sensor
Cold [20°C (68°F)]
"
Hot [80°C (176°F)]
1.5V
"
0.5V
2.5 k
Ω
"
0.3 k
Ω
Turbine Revolution Sensor
Terminal No.
Resistance
1
2
2.4 - 2.8 k
Ω
2
3
No continuity
1
3
No continuity
Revolution Sensor
Terminal No.
Resistance
1
2
500 - 650
Ω
2
3
No continuity
1
3
No continuity
Dropping Resistor
Resistance
11.2 - 12.8
Ω
SERVICE DATA AND SPECIFICATIONS (SDS)
AT-280
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