length NISSAN 300ZX 1984 Z31 Automatic Transmission Workshop Manual

ON-VEHICLE SERVICE
Contrl
1. Drain fluid by removing oil pan.
2. Remove kickdown solenoid and vacuum dia
phragm
23 rod
Be careful not to lose vacuum rod.
Vacuum diaphragm
SAT506
3. Remove control valve assembly.
Be careful not to drop manual valve out of valve
body.
4. Disassemble, inspect and assemble control valve
assembly Refer to Control Valve Body.
5. Install control valve assembly.
0 Set manual shaft at Neutral, then align manual
plate with groove in manual valve of control
valve assembly.
Securing bolts come
in 3 different lengths. 0
1 40 mm I1 51 in) 2 35 mm (1 38 in1 3 25mm1098mI
After installing control valve to transmission
case, make sure that control lever can be
moved to all positions.
6 Install kickdown solenoid and vacuum dia-
phragm
& rod.
Make sure that vacuum diaphragm rod does not
interfere with side plate
of control valve.
AT-I 0

Vacuum Diaphragm Rod
Adjustment
1. Remove diaphragm from transmission case.
2 Using a depth gauge, measure depth "L". Be
sure vacuum throttle valve is pushed into valve
body
as far as possible.
3 Check "L" depth with chart below and select
proper length rod.
Measured depth "L"
mm (in)
Under 25 55
(1 0059)
25 65
- 26 05
(1 0098
- 1 0256)
26 15
- 26 55
(1 0295 - 1 0453)
26 65
- 27 05
(1 0492 - 1 0650)
Over 27 15
(1 0689)
Vacuum diaphragm
Rod length
mm (in)
29 0
(1 142)
29 5
(1 161)
30
0
(1 181)
30 5
(1 201)
31
0
(1 220)
Vacuum diaphragm
I1
rod
SAT078
Part number
31932- X0103
31932 - XO104
31932- XOlOO
31932- X0102
31932. XOlOl
Downshift Solenoid
1. Remove downshift solenoid and O-ring.
Catch
oil dropping out of the hole.
SAT516
2 Check to verify that downshift solenoid is
operatmg properly. If faulty, replace it with a
new one
SAT517
AT-I4

REPAIR FOR COMPONENT PARTS
No of
active coil
Outer
coil dia
rnrn (in)
Wire dia
rnrn (in) Valve spring
Oil Pump (Cont’d)
Valve spring chart
Installed
Length
rnrn (in) N (kg. Ib)
Free length
rnrn (in)
Lock-up control valve 10 89 0 65 (0 02561 5 45 (0 21461 14 5 25 7 (1 0121 16 0 (0 630) (1 11, 45)
3 Measure clearance between outer gear and
crescent.
Standard clearance:
Wear limit:
0.14 - 0.21 mm (0.0055 - 0.0083 in)
0.25
mm (0.0098 in)
4 Measure clearance between outer gear and
pump housing.
Standard clearance:
Wear limit:
0.05 - 0.20 mm (0.0020 - 0.0079 in)
0.25
mm (0.0098 in)
5
SAT026
Using a feeler gauge and straight edge, measure
clearance between
gears and pump cover
Standard clearance:
0.02
- 0.04 mm (0.0008 - 0.0016 in)
Wear limit:
0.08 mm (0.0031 in)
AT162
AT-29

INSPECTION
a Inspect drum support bushing and ring groove
areas for wear.
SAT542 I
a Inspect O.D. cancel valve & spring and all
internal surfaces for damage visible wear
No of Freelength Outer
Valve spring
coil dia active coil mm (in) mm (In) mm (in)
Wire dia
0 65 4 95 23 0
(0 0256) (0 1949) (0 9061 12 8 0 D. canel valve
Measure clearance between seal ring and ring
groove
Standard clearance:
Wear limit:
0.05 - 0.20 rnrn (0.0020 - 0.0079 in)
0.20 mm (0.0079 in)
Installed
Length Load
mm (in) N (kg, Ib)
16 0 12 26
(0 630) (1 25, 2 76)
IIII I I II
SAT545
AT-31

REPAIR FOR COMPONENT PARTS
Control Valve Body (Cont'd)
I
@ Second lock valve
VALVE BODY SPRING CHART
055(00217) 555(021851 16 33 5 (1 319) 21 0 (0 827) 5 88 (0 60,1.32)
Free length
check
valve VG30E turbo 1 0 (0 0391 6 5 (0 256) 13 24 9 (0 980)
Outer
19 0 (0 748) 27 95 (2 85,6 28)
Numbers stamped on valve springs listed in table
~ below are the Same as those in the figure on the
previous page.
Orifice check valve
Servo orifice check
valve
3rd - 4th VG30E
@ shift
VG30E turbo
I nsta I led Outer coil
mm (in)
Wire dia No of Free length
Valve spring dia active
coil mm (in) Length mm (in)
mm (in) N (kg. Ib)
023 (00091) 50 (0 197) 12
0 8 (0 031) 6 6 (0260) 12 6
0 75 (0 0295) 6 1 (0 240) 13 6
-
Solenoid downshift 10 55 (0 0217) 15 55 (0 2185) I 12 @ valve
155(0610)
22 0 (0 866) 12 5 (0 492) 5 88 (0 60,l 32) I
11 5(04531 OlO(OOl.002)
30 3 (1 193)
I VG30E 1 09 (0035) 1 65(0256) I 14 relief
24 586
13 1 (0 516) (2 507, 528)
26 8 (1 055) 19 0 (0 748) 21 48 (2 19,4 83)
3rd - 2nd
valve
@ timing
VG30E 0 7 (0 028) 5 9 (0 232) 12 5 227(0894) 14.5(0571) 11 08(1.13,249)
VG30E turbo 0 9 (0 035) 7 4 (0 291) 9 207(0815) 14.5(0571) l648(1 68,370)
268(1055) I131 (0516) I 2138(218.481)
AT-35

Prmary valve ~~
Wire
dia
(In)
(0 5 - 0 7 kg-m,
Installed Outer mil
dia
mm (in)
No of Free length
active coil mm (in) Length
mm (in) N (kg, Ib)
- \01i distributor
VG30E Primary
governor VG30E turbo
SAT560
0 65 (0 0256) 8 95 (0 3524)
0 45 (0 0177) 8 75 (0 3445)
4 4
50 10 5 (0 413)
21 8 (0 858)
7 5 (0 295)
7
5 (0 295)
2 109 (0 215,O 474)
2 109 (0 215,O 474)
mor
VG30E Secondary
0 Check valves for burning or scratches. Inspect
springs for weakness or burning Replace parts
as necessary
Do not interchange components of primary and
secondary governor valves
GOVERNOR VALVE SPRING CHART
0 70 (0 0276) 9 20 (0 3622) 5 5 19 8 (0 780) 10 5 (0 4131 6 9 (0 7,l 5)
rt:A As instaled
Wvernor
SAT039
VG30E turbo 0 70 (0 0276) 9 20 (0 3622) 5 5 19 8 (0 780) 10 5 (0 413) 6 9 (0 7.1 5)
Valve spring
AT-46

REPAIR FOR COMPONENT PARTS
Accumulator
I Accumulator
dia Wire dia
rnrn (in) mm (in)
Valve spring
Snap ring J
SAT561
active WII mm (in) Length Load
mm (in) N (kg. Ib)
0 Remove snap ring, then apply pressure to
remove accumulator plug, piston and spring.
18
(0 071) Accumulator spring
SAT529
0 Check accumulator components for wear and
I scoring.
I I I
39 7 30 5 58 8
(1 563) (1 201) (6 0, 13 21 73 14 85
(0 5846)
AT-47

ASSEMBLY
Air check point
Governor feed (From
valve) Forward clutch Control
LOW & reverse
brake
SAT586
37 Check that parking pawl, pin, spring and
washer are assembled correctly.
rWasher
SAT739
38. Install rear extension
39. Install control valve assembly. Be sure manual
valve
is in alignment with selector pin Tighten
control valve
body attaching bolts.
Securing bolt comes in three different lengths.
1 40 mm I1 57 ml
2 35 mm I1 38 m) 3 25 mm IO 98 1n1
After installing control valve to transmission case,
make sure that control lever can be moved to all
positions.
40 Before installing vacuum diaphragm valve,
measure depth of hole in which
it is inserted
This measurement determines correct rod
length to ensure proper performance.
"L ' Depth
Vacuum Diaphragm rod , throttle;alve / Valve body ride plate
AT-60

ASSEMBLY
290 (1 142)
29 5 (1 161)
30 0 (1 1811
30 5 (1 201)
31 0 (1 220)
Vacuum diaphragm rod selection
31932-XO103
31932-X0104
31932-XOlOO
31932-X0102
31932-XOlOl
Measured depth
“L” mm (in)
Under 25 55
(1 0059)
25 65
- 26 05
(1
0098 - 1 02561
2615-2655
(1 0295 - 1 04531
26 65.27 05
(1 0492
- 1 0650)
Over 27 15
(1 0689)
Rod length
mm (in) Part number
41 Install vacuum diaphragm.
Make sure that vacuum diaphragm rod does not
interfere with side plate
of control valve.
42 Install downshift solenoid, O.D. cancel sole-
noid, O.D. indicator switch and lock-up sole-
noid.
LO D csncei rolenoid SAT740
43. Install inhibitor switch Check for proper
operation in each range using
a circuit tester.
Refer to On Vehicle Service.
Y li
SAT082
44 Before installing oil pan, check parking pawl
engagement Make wiring connections to shift
switches and low temperature sensor
(E4N71B
automatic transmission models)
45. Install oil pan with new gasket.
-
AT-61