length NISSAN 300ZX 1984 Z31 Steering System Workshop Manual

STEERING COLUMN
Never in any case should undue stress be applied to steering column in axial direction
When installing, do not apply bending force to steering column.
Be careful not to lose sliding plate
When the vehicle comes into light collision, check dimension "L", between steering column upper end
and jacket tube crashable area.
Column length "L" = 478.7 mm - 480.3 mm (18.85 - 18.91 in)
(Measure "L"at neutral position
of steering column if equipped wlth tilt mechanism)
Check steering column for smooth rotation without binding and nom
check
as follows
If it does not rotate smoothly,
Non-tilt Type Column
R
Steering lock Removal Break self-shear type ITo column bearmgl
screws with B drdl or other approprme too1
Lower bushing
Round surface Of Steering column set
teermg column set
- 478 7. a803 mrn
32-38
3.5 10.3.0 5, 2 2- 3 61
N rn lkgm, ft-lbl
Grease-UP Wonts @ DO notreuse SSTZOSA
ST-4

POWER STEERING GEAR AND LINKAGE
1701.
I601
I501
Disassembly and
Rack and inner tube assembling
-
1
Insert rack packing into rack
damage by rack teeth Attach back-up
oat of automatic 80" fluid "Dexion * 1 - n '6 Type" to matlng surface of rack packing 1 ack
k pnrton
KV48103100 lJ342641
ackup collar and rack
1
Insert rack packing into mer tube with tool
SST211A
Tie-rod inner socket installation
After tightening inner socket, bend
lock plate securely and remove burrs

7 Lock plate
Inner socket
Apply locking sealer
78-98Nm ' I8 0 - 10 0 kern. 58.72 h-lbl / I Be sure lock plate ratchet gets into groove at rack end SST213A
Rack stroke
sembly (Cont'd)
Cylinder end housing and pinion housing lock nut
tightening
n : Locknut:
78 - 108 N m
(8.0 - 11.0 kg-m, 58 - 80 ft-lb)
Torque wrench
lJ288201 vc'
98 I101
88 I91
-
04050607 08 m
4' I1 51 I2 01 (2 51 Iff1
Effective length of torque wrench L ssT212A
Tie-rod installation
Lack nut Lock plate
Inner socket
Standard dimension L = 31 5 mm I1 476 In1 When installing tie-rod or adiustmg toe-,".
be careful not to twist boots Toe-," Refer to MA section
Pl"l.3"
Rear housing
I?-
- 62 lz.441 'Cylmder end housing /
SST'214A
iTie-rad inner socket
ICylmder
end hourlng sidel SSTZlBA IPinion sidel
ST-I 1

POWER STEERING GEAR AND LINKAGE
inspection and Ac
2 Screw in rear housing cover until pinion start-
ing torque equals "T,
", then tighten lock nut
T, =TI
+ T3 [T3 = approx. 0 5 N.m (5 kg-cm,
4.3 in-lb)]
pj . Locknut:
78.137 Nm
(8.0 - 14.0 kgrn, 58 - 101 ft-lb)
KV48101700 lJ288191 KV48101690 lJ28818)
1501 2 69 171 _. -.
? 1 59(61!* T %40.50 60.70 8 m - 9
5 4, I1 51 12 01 (2 51 lft)
Effective length of torque wrench L SST219A
Measure pinion starting torque T4 to make sure
it is within specified range
T4
:
3
Less than 0.8 N.m (8 kgcm, 6.9 in-lb)
and
TI
+ [0.10 - 0.25 Nm (1.0.2.5 kg-cm,
0.87.2 17 in-lb)]
4. If T, does not meet the above two values, re-
peat step
2 and re-adjust pinion preload using
T3.
TIE-ROD OUTER SOCKET
1 Check ball joint for swinging torque. /
SST130A
ustment (Cont'd)
Tie-rod outer socket:
Swinging toque
0.29.2.94 Nm
(3
0 - 30 kg-cm, 2.6 - 26.0 in-lb)
2 Check condition of dust cover If it is cracked
excessively, replace.
TIE-ROD INNER SOCKET
Check inner socket for swinging torque and play If
ball stud
is worn and play in axial direction IS ex-
cessive or joint
is hard to swing, replace as a com-
plete unit.
Tie-rod inner socket:
Swinging toque
1.0 - 7.8 N m
(10 - 80 kg-cm, 8.7 - 69.4 in-lb)
0 mm (0 in)
Axial play
n
it- * SSTl 06A
BOOT
Check condition of boot
If it is cracked excessive-
ly, replace boot
CYLINDER TUBES AND BREATHER HOSE
Check cylinder tubes and breather hose for
scratches or other damage
Replace if necessary
STEERING GEAR COMPONENT PARTS
Thoroughly examine those component parts.
If
those parts are damaged, cracked or worn, replace
as steering gear assembly
ST-1 3

SERVICE DATA AND SPECIFICATIONS (S.D.S.)
Turn of steering wheel (Lock to lock1
General Specifications
28
Steering gear type I [Power PR24S rteerlngl
I Collapsible
Column length L mm lcnl
Non4ilt type
Column lensth "L"
steermg column set
L = 478 7.4803 mm
SST207A
Tilt type Jumping UP
,' Tilt UP
L=4787-4803mml1885 1891 ~nl SSTZ08A at steering column Neutral position
Steering o~erall gear ratio I 17 1
Power steering fluid
Automatic transmission fluid "DEXRON type"
P IUS pt. Imp ptl ApProx 0 9 (1-718. 1-5/81
TVpe 1
Capacity
Normal operating temperature 60-80 (140.1761 "C (OF1
-Inspection and Adjustment-
GENERAL
Steering wheel axial play mm Im1 I 0 IO1
Steering wheel play mm (in1 I Less than 35 (1 38)
Power steering system Steering wheel turning force at
360* Position from Neutral
N lkg,Ibl
011 pump belt deflection
(Measured when engine 16 cold1 mm (in1198 N 110 kg.22 Ibl
Less than 39 2 14 0,8 81
New 10.13
(0 39.0 511 Used 13-16
I051 -0631 Limit 21 (0 831 -
Replace belt to new one
6.669.7257 kPa Ikglcm', PSI) I 168.74,967.1 p521
011 pump maximum pressure
011 pressure switch operation
Hydraulnc he pressure Operation kPa 1kglcm'. pro1 I
Increasing to 1,961 .2>42
l20.30,284 - 4271 Turn ON I
I TurnOFF I Decreasing to 981 .2,942 110-30.142-4271 I
ST-1 7

SERVICE DATA AND SPECIFICATIONS (S.D.S.)
Tie-rod outer ball joint
Swinging torque N m (kgim. m4b)
- Inspection and Adjustment
(Cont'd)
0 29.2 94
I3 0.30,2 6.26
01 ~~~
Pinion gear
preload
(Ptnlon and rack gear assembly without
fluid1 N m Ikgcm, tn-lbl
Tie-rod inner ball joint 10-78 Swinging torque N m (kgem, in-lb) 110 - 80.8 7 .69 41
__~ ~
Less than 1 2 (12.10)
Axial Dlay mm (in) I 0 IO)
Rack stroke
Pinion
I' ? Pack
Rear housing
Tne-rod innel rocket Tie-rod inner socket
& .l
Unit mm Ion) linder end housina - ICyImder end hourmg sadel SST223A
Tie-rod standard length mm (In)
Inner rocket
8 Standard dimensnn L = 37 5 mm I1 476 ln) e When installing tie-rod or adjusting toe-in, be careful not Io twist boots Toe-in Refer to MA seCtion SST214A
1226- 1863
(12 5.19.276 -41.9) Rack stanmg force at steering center (Pinion and rack gear assembly without
fluid) N (kg. Ib)
Tightening Torque
STEERING COLUMN ~~~~
U"lt Nm kg-m ft-lb
Steering wheel nut 49-59 50-60 36-43
Steering column to
body 9 - 14 09-14 65-101
Hole cover to dash panel 3 .5 03-05 22-36
Columnlaintfixingbolt 32-38 33-39 24.28 (Lower joint, column set)
Jacket lower tube to
34-44 035-045 25-33 steering column clamp
STEERING GEAR & LINKAGE (PR-24s)
Unit Nm kg-m ft-lb
Tie-rod lock nut
Tie-rod inner socket to
rack (With sealant)
Cylinder end housmg
& pinion housmg lock nut
Rear housmg to pman
housing
Rear housing
cover lack
nut
Retainer lock nut
Cylinder tube flare nut
Gear & linkage mounting
Tie-rod
to knuckle arm
78 -98
78 -98
78 - 108
8-12
78.137
39 - 59
20
- 26
29-39
54 -98
80-100
80.100
80.110
08-1 2
80-140
40-60
20-27
30-40
55-100
58.72
58-72
58-80
58-87
Ea - 101
29 -43
14-20
22-29
40 - 72
OIL PUMP
U"lt Nm kg-m ft-lb
Mounting bracket to engine 14. 18
Engine sllnger mounting 14 - 18 bolt
011 pump to mounting 31 .42 bracket (Through bolt)
011 pump casing to 31 -42 rub bracket
Adlusting bar bracket
to 16.21 mounting bracket
Sub bracket to adjusting bar
16 - 21
Pulley lock nut 31 -42
Rear cover fixing bolt 38 - 52
Connector (Spool cover) 69 - 78
Suction piDe to easing 9-12
14-1 8
14-18
33-43
32-43
16-21
16-21
32-43
39-53
70-80
09-12
10-13
10
- 13
23 - 31
23 - 31
12-15
12-15
23.31
28-38
51
-58
65-87
ST-1 8