oil type NISSAN 300ZX 1984 Z31 Steering System Workshop Manual

STEERING SYSTEM
a Fully turn steering wheel to the right and disconnect whole hydraulic line to steering gear ASSY. then remove steering gear
Whenever dirconnecitng hydraulic lines, cover openings to prevent foreign material from entering
a Be careful not to damage hydraulic line connection
a Do not reuse O-ring in hydraulic system.
a When conecting hydraulic line, apply a coat of oil (Automatic transmission fluid "Dexron Type") to O-rings
If disconnecting hydraulic line. always perform leak test and bleed air from line after filling it with oil
a After properly installing steering gear and linkage, check wheel alignment Refer to section MA
ST-2

POWER STEERING GEAR AND LINKAGE
Disassembly and Assembly
0 Do not disassemble unless repairing to stop oil leak, replacing tie-rod and tie-rod inner rocket ball joint, or for various
adjustments.
0 Do not reuse O-rings or oil seals.
0 When assembling, apply a coat of oil to mating surfaces of O-rings and 011 seals
0 When assembling, be careful not to damage oil seals
0 Before starting work, thoroughly clean all parts in cleaning solvent or automatic transmission fluid "Dexron Type" and
blow dry with compressed air, if available.
0 After assembling tie-rod inner socket to rack & housing ASSY, check rack stroke (refer to "Rack stroke")
Lock nut
Refer to "Cylinder end housing and Refer to 'Tie-md inner Locket mtallation"
7 .... . . , . pmon housing lock nuts tight !e","." -
&?; '(80 100.58-72)
78.108
[Using tool KV48101800
when assembling ram ana cylinder end housing ASSY, becareful not to damage 011 seal
"18 0.11 0,58.80)
e]'
/ I
Refer to
'Tne-rod ,"stallatlo""
, collar
' @,e3
14.20)
be careful not to damage rack packing inner tube anernblong" (91 (2.0.2.7.
I.
Rad. and inner tubearrrnblmg
pjl N m (kgm. ft-lb)
Greaseup winti
e] Lubrication points
@ Donot reuse a
ST-8

POWER STEERING GEAR AND LINKAGE
Disassembly and Assembly (Cont'd)
0 Refer to "Tie-rod inner socket installation",
"Tie-rod installation", and "Rack stroke"
-
ASSEMBLY
Before starting work, thoroughly clean all parts
in cleaning solvent or automatic transmission
fluid "Dexron Type" and blow dry with com-
pressed air,
if available
Do not reuse old oil seal, packing and O-ring
Always
install new ones
When installing oil
seals, use suitable tool
SST548
When installing cylinder end housing or rear
housing cover, wrap cellophane tape around
rack end
or pinion serrations to prevent oil seal
from being damaged
Cylmder end housing (Apply a coat of automatrc transmission fluid "Oexron Type" to 081 seal mating surface I
rCellophane tape
a- - Rack
Rear housng cover IA~ply a coat of automatic transmission fluid "Dexron Type" to 011 seal mating
SSTZlOA
Apply oil to O-rings as well as frictional sur.
faces of oil
seals and packings
Refer to "Rack and inner tube assembling" v
2. Assemble rack & inner tube assembly,
cylinder, cylinder end housing and pinion
housina.
I 0 Be careful not to damage oil seal
0 Pay attention to dlrection for the cylinder end
housing and pinion housing to prevent undue
stress from being applied to hydraulic pipes
0 Cylinder end housing and pinion housing lock
nut
p1 78-108Nm
(8 0 . 11.0 kg-m, 58 - 80 ft-lb)
Refer to "Cylinder end housing and pinion
housing lock nut tightening"
4. Install pinion complete and rear housing
complete.
I
0 Be careful not to damage oil seal
0 After adjusting pinion preload, tighten real
housing cover lock nut
p1 78 - 137 N.m
(8 - 14 kg-m, 58. 101 ft-lbl
Rear housing cover lock nut.
Refer to "Pinion preload adjustment"
5. Install retainer assembly.
force adjusted to specifications
Refer to "Retainer adjustment"
6. Check rack for smooth movement over its
entire stroke, without binding and noise. I
7. Install hydraulic piping and breather hose.
ST- 1 0

POWER STEERING OIL PUMP
Connector Ispool cover1 Flexible hose
69-78
38.52 mi7'0-80'51 1 A Washe2 Connector bolt
7 . I 0 9- 12 (09.12.65 -871 13 9.5 3,28 - 381
s,,rr,nn ",no.... I
36-51] --I ..I.. r,r_
re switch (Non-turbocharged model)
Htgh-pressure ride
hydraultc
line pressure
1,961
- 2,942 kPa
(20.30 kg/cm' ,
Decreasing to aPProx
Turn ON
981 -2,942 kPa
(10 - 30 kg/cm' ,
142-427~511 1
42 I3 2 -43.23- 31)
L Pulley shaft (When assembling pulley shaft. be careful
not to damage oil seal lip1 seal
am
(41 31 -42 13.2 - 4.3, 23 - 311 (41 N m (kg-m. ft-lb)
fl Lubricatzon points (with automatic transmission fluid "Dexron Type") @ ~onotreu~
- Pre-disassembly Inspection
The power steering oil pump should be disassem-
bled only
d any of the following conditions are
ObSWVed.
Oil leak at the following points
SST126A
Deformed or damaged pulley
SST220A
Oil Pump Installation
mounting bracket
steering pump
(41 N m (kgm, ft-lbl
SST221A
m16-21 (1.6-21,
12.15)
After installing oil pump, adjust belt tension.
Refer to MA section.
ST-1 4