1998 NISSAN GT-R Service Manual

MANUAL TRANSMISSION
BACKLASH ADJUSTING SHIMS
Measurement height
mm
--
Items
Main drive gear
1st gear
2nd gear
3rd gear Thickness
mm Standard mm
0.05 - 0.10
0.05
- 0.20
0.05
- 0.20
0.05
- 0.20
Selective parts Parts number
Counter shaft
front bearing
4th gear I -
5th gear 1 0.05 - 0.20 Ail
BAULK RlNG CLEARANCE Reverse idler gear 1 0.05 - 0.20
END PLAY Measurement
position
2nd and 3rd
Inner baulk ring clearance 'an
1 st gear 1 0.31 - 0.41
Items
2nd gear
1 0.11-0.21
Standard
mm
3rd gear 1 0.11 - 0.21
Outer
baulk ring
lnn'er baulk ring
7 4th gear 5th gear
Reverse idler gear
Counter gear Main drive gear end play
Mainshaft high-synchro side
Rear end of mainshaft end bearing
SNAP RlNG
- -
0.24 - 0.41
0.05
- 0.50
0
- 0.16
0
- 0.13
0 - 0.18
0
- 0.14
4th and 5th ( 1.20 - 1.60 1 Less than 0.8
Selective parts
Thickness
mm I Parts number - -- Reverse gear 1 1.10 - 1.55 1 Less than 0.7
Main drive gear
TIGHTENING TORQUE
Unit: N.m (kg-rn)
Counter drive gear
I
TIM side to 40 - 49
Transmission to engine mounting bolt Engine side to 30
- 39
TIM side (3.0 - 4.0) I High-synchro side 32263 V5200 1 32263
"5201
Rear end of shaft I I
Mainshaft 1.1
32228 20 1 00

MANUAL TRANSMISSION
END PLAY SNAP RING AND C-RING
Items I Standard mm Selective parts --
1st gear I 0.23 - 0.33
2nd gear
I 0.23 - 0.33 I
5th gear I 0.23 - 0.33
3rd gear
I
Reverse gear I 0.33 - 0.43
0.06
- 0.16 Main
drive gear
4th gear
-
--
Reverse idler gear
Counter gear
Mainshaft (rear) 0.30 - 0.53 Mainshaft (front) 0.10 - 0.25 --
Main drive gear end play
Mainshaft (front) end play
Mainshaft (rear) end play
Counter gear (front) end play
Counter gear (rear) end play
Counter gear (rear) 0 - 0.10
0
- 0.10
0
- 0.10
0.10
- 0.25
0
- 0.10
Thickness mm Parts number
32348 01G15
32348 01 GOO
32348 01
GO1
32348 01
GO2
32348 01 GO3
32348 01
GO4
32348 01
GO5
32348 01
GO6
32348 01 GO7
32348 01 GO8
32348 01 GO9
32348
01G10
32348 01G11
32348 01 G12
32348 01
GI 3
32348 01G14

MANUAL TRANSMISSION pmtq
THRUST WASHER BAULK RING CLEARANCE
Selective parts I Thickness mm I Parts number
Counter gear
(front)
Reverse idler Measurement
position
,
Ist, 2nd and 3rd (double cone)
lnner baulk ring clearance "a*
Outer baulk ring clearance
"bn
3221
8
01
GOO
32218
01G11
3221
8
01G12
32218
01G13
32218
01G14
32218
01G04
32218
01G15
32218
01G16
3221
8 01 GI7
32284
01G10
3228401G11
Outer baulk ring L,
Syncf
cone
4th and 5th
lnner baulk ring
MTA0004D
Reverse gear
Reverse baulk ring
clearance
"cn
Reverse cone
Standard mm Wear
limit
mm
Less than
0.2
Less than
0.2
EC
Less than &$ 0.7
Less than
0.7
--
TIGHTENING TORQUE
Unit: N.m (kg-m)
1 TIM side to 1 40 - 49
Transmission to engine
mounting bolt Engine side to
30 - 39
I T/M side 1 (3.0 - 4.0)

SHIFT SPEED
I
--
Engine type (model code) RB25DE (4AX01) ,
Engine type (model code)
Engine type (model code)
I RB25DET (4AX00)
Throttle position
Full throttle
Half throttle
RB20DE (4AX03)
Vehicle speed km/h
Throttle position Full throttle
Half throttle Shift
pattern
Normal Power
Normal
Power
D,--+D2
46
- 50
46
- 50
31
- 35
43
- 47
Shift pattern
Normal Power
Normal Power
Throttle position
D344
149-159
149
- 159
101
- 109
135
- 143
D23 D3
91 - 99
91
- 99
62
- 68
84
- 90
Full throttle
Half throttle
- -
Vehicle speed km/h
Shift pattern
D4-43
144-154
144
- 154
71
- 79
83
- 91
~,-a
50 - 54
50
- 54
32
- 36
42
- 46
Vehicle speed km/h
I D2-rD3 I D3*D4 I D44D3 I D3*D2 1 D2jD,
Normal
Power
Normal Power
D3+ D2
86 - 94
86
- 94
41
- 45
45
- 51
D2+ D3
101 - 109
101
- 109
61
- 67
85
- 91
45
- 49
45
- 49
31
- 35
39
- 43 D2-4
41
- 45
41
- 45
6-10
6-10
D,-*D,
157 - 167
157
- 167
104
- 112
135
- 143
103
- 111
103
- 111
74
- 80
84
- 90
D,-,D~
151 - 161
151
- 161
80
- 88
87
- 95
167
- 177
167
- 177
111
- 119
133
- 141
D,-* D,
96 - 104
96
- 104
37
- 43
45
- 51
161
- 171
161
- 171
63
- 71
98
- 106
~2~ DI
40 - 44
40
- 44
6- 10
6- 10
98
- 106
98
- 106
32
- 38
50
- 56 40
- 44
40
- 44
6-10
6- 10

AUTOMATIC TRANSMISSION
LOCK-UP SPEED
Engine type (mode
Vehicle speed in
D, position
Vehicle speed in
D, position code)
Lock-up OFF krnh
Lock-up
ON
kmlh
Lock-up OFF kmlh Closed throttle
Half throttle
Closed throttle
Half throttle
Closed throttle Half throttle
Closed throttle Half throttle
--- - Closed throttle: Throttle opening of less than 118 with the closed throttle position switch off position
Half throttle: Throttle opening of 418
STALL SPEED
LINE PRESSURE
Engine type (model code) Stall engine speed rpm
- - -
At idle engine speed I 0.58 - 0.62 (5.9 - 6.3) I 0.47 - 0.51 (4.8 - 5.2)
Engine speed
At stall engine speed
1 1.71 - 1.78 (17.4 - 18.2) 1 1.22 - 1.29 (12.4 - 13.2)
Line pressure MPa (kg/cm2)
R position D, 2, and 1 positions (4AT)
D, 3, and 2 positions (M-AT)

CONTROL VALVE SPECIFICATIONS
Val ve loc
Upper body
Lower body :ation
L1
L2
L3
L4
L5
L6
CONTROL VALVE SPRING SPECIFICATIONS
L7
L8
L9
L10
L11
L13
L14
L15
L16
Unit: mm I 1 I I I I
Valve designation
Torque converter regulator valve
Pressure modifier valve
Pressure regulator valve
Overrun clutch control valve
Lower body Total
length mm
27.5
43.5
68.0
55.5
19.5
56.0
75.0
Accumulator control valve Parts
number
31780 41x01
31751 41x02
31741 80x00
3 1 772
4AXOO
3 1 772
4AX02
31 675 41 X07
31766
- 4AXOO
31766 51x03
4AX03
model
Except
4AX03 model
4AX03 model
Except
4AX03 model
Valve
spring location Throttle accumulator piston
Shift valve
B
Shift valve A
Upper body
Overrun clutch reducing
63.5
65.0
Overrun clutch reducing valve
Pilot valve
Torque converter clutch control valve
L1
L2 L3
L4
L5
L6
L7
Valve spring designation
Torque converter regulator valve spring
Pressure modifier valve spring
Pressure regulator valve spring
Throttle accumulator piston spring
A
Shift valve B spring
Shift valve
A spring
31 766 51 X04
31766 4AX02
54.5
38.5 58.0
57.0
67.0
37.5
37.5
41
.O
66.0 38.5
Shuttle shift valve S
Free length
36.0
31.95
31.8
30.5
23.5 25.0
23.6
38.3
Overrun clutch control valve
spring
4AX03 model
Pilot valve spring
r
Torque converter clutch control valve spring
31 772 41 X06
31772 41x01
31 832
4AX01
31766 51x05
31766 4AX01
31772 41x12
31772 4AX01
31772 71x00
31 772 41 X03
31772
21x00
4AX03
model
Except
4AX03 model
4AX03 model
Except
4AX03 model
/ L~ / valve spring
26.5
46.5
54.0
25.0
22.6
25.4
23.0
23.0
33.89
I
I I
Shuttle shift valve S spring
1 reducing valve spring Outer
diameter
'D"
9.0
6.8
15.0
9.8
11.0
7.0
7.0
8.0
Except 4AX03 model
32.5
4AX03
model
Except
4AX03 model
4AX00 model
Except
4AX00 model
1 reducing valve
9.0
6.5
5.65
7.0
6.7
6.75
6.7
6.7
6.95
3-2
timing
valve spring
Servo charger valve spring
Lock-up regulator valve spring
3-2 timing valve
Wire
diameter
"d"
1.4
0.8 1.3
1.3
0.8
0.65
0.6
0.55
35.5 7.0
4AX03
model
Except
4AX03 model
1.1
0.8
0.75
0.65 0.7
0.75
0.7
0.7
0.55
Servo charger valve
Lock-up regulator valve
Winding
direction Right
4
1
7
t
?
T
T
7.0 0.85
T
?
T
T
?
T
T
T
.. I
Parts
number
31742
4AXOO
3 1 742
41x19
31742
4AXO 1
31 742
41
XI 5
31742
4AX02
3
1762
41x01
3 1762
41x03
31762
4AXOO
0.9
T 31742
t
41 X63
31742
41x65

AUTOMATIC TRANSMISSION
ACCUMULATOR
Accumulator spring
Spring designation
Accumulator spring
A
Accumulator spring D
BAND SERVO PISTON
Band servo piston spring
--
Free length mm
43.0
66.0
45.0
Accumulator spring B
-
- --
Parts number
31 605 41 X02
31 605 41
XI 0
31 605
4AX03
EC
31 605 4AX00
4AX03
model
Except
4AX03 model
AT
Accumulator O-ring
58.4
Accumulator Large O-ring mm
Small O-ring mm
Accumulator
spring C
31 605 41 X06
Model code
A
45
29
Spring designation
Band servo piston spring
A
Band servo piston spring B
Designation
I Reverse clutch I Hiah clutch
4AX00,4AX01
Band servo piston spring C
Model code I 4AX00 I 4AX01. 4AX03
B
50
45
4AX03
HA
Free length mm
47.6
-
CLUTCH AND BRAKE
29.7
C
50
34
Parts number
31 605 41 XI 4
-
Drive
Piate
D 0 J-J
45
29 ST
31605 41x01
Wear limit mm
Number of plates
Clearance
"7m
1 0.5 - 0.8 I 0.5 - 0.8
Free length mm
47.6
-
Number of plates
Parts number
Thickness mm
1.8 1.8
2 2
Driven plate
Thick- Thick-
I % I Parts number Parts
number
31 605 41 XI 8
- EL
29.7
-- 2 2
31 532 41
x73
31 532 41 X24
2.0 2.0
Parts number
31 605 41 XO1
Parts number
Thickness mm
Thick- ness mm 31 536 41 X20
31536 41x14
2.8 2.0
Thick-
Retaining plate

t I I
Thickness mm I 2.0 1 2.0 1 2.0
Clearance mm
Designation
Model code
Retaining plate
Driven plate
I Parts
number 1 31 536 41 X21 I 31 536 41 XI 3 I 31536 41x13
High clutch
4AX03
4
31532
41x11
1.6 1.4
7
Drive plate
Thickness 1 Pans number
mm
Number of
plates
Parts number
Thickness mm
Wear limit mm
Number of plates
Thickness mm
--
Forward clutch
Parts number
4AX00
7
31 532 41 X63
2.0
1.8
7
Thickness mm
4AX01,4AX03 6
31532 41 X63
2.0 1.8
6
Parts number
Designation
Model code
I Number of plates
Drive plate
Retaining plate Overrun clutch
4AX00,4AX01,4AX03
3
Driven plate
I Thi","~ss 1 Parts number 1 Thi","rss 1 Parts number 1 ThigEss
31 667 41 XI 7 31667 41 XI1
31667 41x12
31 667 41 XI 3
31667
41x14
31 667 41 X07
31 667 41 X08
31 667 41
XOO
31667 41x01
31 667 41 X02
31
667 41 X03
31 667 41 X04
31
667 41 XO5
Low & reverse brake
I
Parts number
4AX00
7
31532 41x69
1.6 Parts number
Thickness mm
I
31667 41x13
31
667 41
XI 4
31 667 41 X07
31 667 41 X08
31 667 41
XOO
31 667 41
XO1
31 667 41 X02
31 667 41 X03
31 667
41 X04
31 667 41 X05
31 667 41 X06
4AX01,4AX03
5
31 532 41 X69
1.6
31
532 41 X62
2.0 1.4
7
31 666 41 X02
2.0
Wear limit mm
Number of plates
Parts number
Thickness mm
Clearance mm 1.4
7
31 666 41 X02
2.0
0.5
- 0.8
1.8
5
31 536
41x10
2.0
1.0 - 1.4 0.5 - 0.8