torque NISSAN TEANA 2003 Service Manual

POWER STEERING GEAR AND LINKAGE
PS-19
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8. Remove high-pressure tube and low-pressure hose of hydraulic
piping, and then drain power steering fluid. Refer to PS-39,
"HYDRAULIC LINE" .
9. Remove fixing bolt (lower side) of lower shaft.
10. Remove stabilizer connecting rod lower nut, and then separate
stabilizer connecting rod from stabilizer bar. Refer to FSU-7,
"Components" .
11. Remove mounting nut and bolt of transverse link ball joint, and
then remove transverse link from steering knuckle. Refer to
FSU-7, "
Components" .
12. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYS-
TEM" .
13. Remove steering hydraulic piping bracket from front suspension member and rear engine mounting insu-
lator. Refer to PS-39, "
HYDRAULIC LINE" .
14. Set jack under transaxle assembly.
15. Remove front engine mounting bracket and front engine mounting insulator mounting bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
16. Remove rear engine mounting bracket and rear engine mounting insulator mounting bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
17. Remove rear engine mounting insulator and front suspension member fixing nuts and bolts. Refer to EM-
77, "ENGINE ASSEMBLY" .
18. Set jack under front suspension member.
19. Loosen mounting nuts (front side) of front suspension member. Refer to FSU-7, "
Components" .
20. Remove mounting bolts (body side) of member stay, and then loosen nuts (front suspension member side
mounting point) of member stay. Refer to FSU-7, "
Components" .
21. Gradually lower jack to remove steering gear assembly mounting nut and bolts and remove rack mounting
bracket, rack mounting insulator and sleeve from vehicle, and then remove steering gear assembly from
vehicle.
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-17, "COMPONENTS" .

When installing lower shaft to steering gear assembly, follow the procedure listed below.
–Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn pinion assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower shaft (C) aligning with the projection (A)
of rear cover cap (1). Make sure that the slit part of lower shaft
(C) is aligned with both the projection (A) of rear cover cap (1)
and the marking position (B) of gear housing assembly.
–After installation, bleed air from the steering hydraulic system.
Refer to PS-39, "
HYDRAULIC LINE" .
–Perform final tightening of nuts and bolts on each part under
unladen conditions with tyres on level ground when removing
steering gear assembly. Check wheel alignment. Refer to FSU-
5, "Wheel Alignment Inspection" .
–Adjust neutral position of steering angle sensor after checking the wheel alignment for the models with
VDC. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
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SGIA1140E

POWER STEERING GEAR AND LINKAGE
PS-23
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INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
Check rack assembly for damage or wear, and replace it if a malfunction is detected.
Pinion Assembly

Check pinion assembly for damage or wear, and replace it if a malfunction is detected.

Rotate pinion and check for torque variation or rattle, and replace it if a malfunction is detected.
Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace if there are.
Outer Socket and Inner Socket
1. Ball joint swinging torque

Hook a spring balance at the point shown in the figure and
pull the spring balance. Make sure that the spring balance
reads the specified value when ball stud and inner socket
start to move. Replace outer socket and steering gear assem-
bly if they are outside the standard.
2. Ball joint rotating torque

Make sure that the reading is within the following specified
range using the preload gauge [SST]. Replace outer socket if
the reading is outside the specified value.
SGIA0896E
Items Outer socket Inner socket
Measuring point of spring balance Stud cotter pin mounting hole Measuring point at *mark shown in the figure
Swinging torque0.3 – 2.9 N·m
(0.03 – 0.29 kg-m, 3 – 25 in-lb)1.0 – 7.8 N·m
(0.11 – 0.79 kg-m, 9 – 69 in-lb)
Spring balance measurement 4.84 – 46.7 N (0.5 – 4.8 kg, 1 – 10 lb) 12.1 – 93.7 N (1.2 – 9.6 kg, 3 – 21 lb)
Outer socket rotating torque 0.3 – 2.9 N·m (0.03 – 0.29 kg-m, 3 – 25 in-lb)
SGIA0083E

POWER STEERING GEAR AND LINKAGE
PS-25
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a. Wrap an OHP sheet [approximately 70 mm (2.76 in) ×100 mm
(3.94 in)]. Around rack assembly teeth to avoid damaging rack
oil seal (inner). Install rack oil seal over sheet. Then, pull OHP
sheet along with rack oil seal until they pass rack assembly
teeth, and remove OHP sheet.
b. Insert rack oil seal (inner) into rack assembly piston (rack Teflon
ring).
c. Push retainer to adjusting screw side by hand, and move the
rack assembly inside the gear housing assembly so that the
rack oil seal (inner) can be pressed against the gear housing
assembly
d. Wrap an OHP sheet [approximately 70 mm (2.76 in) ×100 mm
(3.94 in)]. Around the edge to avoid damaging rack oil seal
(outer). Install rack oil seal over sheet. Then, pull oil seal along
with OHP sheet until they pass rack edge, and remove OHP
sheet.
e. Install end cover assembly to rack edge, and move rack oil seal
(outer) until it contacts with gear housing assembly.
5. Tighten end cover assembly to specified torque using a 45 mm
(1.77 in) open head (suitable tool).
CAUTION:
Do not damage rack assembly. Replace it if damaged
because it may cause fluid leakage.
6. Crimp gear housing assembly at one point using a punch as
shown in the figure so as to prevent end cover assembly from
getting loose after tightening end cover assembly.
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SST081B
SGIA0871E

PS-26
POWER STEERING GEAR AND LINKAGE

7. Install pinion assembly to gear housing assembly.
CAUTION:
In order to protect rack oil seal from any damage, insert pinion assembly out straightly.
8. Apply recommended fluid to O-ring, and the install O-ring to rear cover.
9. Using a rear cover wrench [SST: KV489Q0030] (A), install rear
cover to gear housing assembly.
10. Decide on the neutral position for the rack.
11. Install rear cover cap to pinion assembly.
CAUTION:
Make sure that the projection of rear cover cap is aligned
with the marking position of gear housing assembly.
12. Apply recommended thread locking sealant to the thread (2
turns thread), and then screw in the adjusting screw until it
reaches height “H” from gear housing assembly measured
before disassembling.
13. Move rack assembly 10 strokes throughout the full stroke so that
the parts can fit with each other.
14. Measure pinion rotating torque within ±180° of neutral position
of the rack assembly using the preload gauge [SST] and preload
adapter [SST]. Stop the gear at the point where highest torque is
read.
15. Loosen adjusting screw and retighten to 5.4 N·m (0.55 kg-m, 48
in-lb), and then loosen by 20 to 40°.
SGIA1331E
Tire size 205/65R16 215/55R17
Rack stroke L 73.5 mm (2.894 in) 68.5 mm (2.697 in)
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STC0036D

POWER STEERING GEAR AND LINKAGE
PS-27
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16. Measure pinion rotating torque using the preload adapter [SST]
and preload gauge [SST] to make sure that the measured value
is within the standard. Readjust if the value is outside the stan-
dard. Replace steering gear assembly if the value is outside the
standard after readjusting or adjusting screw rotating torque is 5
N·m (0.51 kg-m, 44 in-lb) or less.
17. Apply recommended Liquid Gasket to inner socket and turn pin-
ion fully to left with inner socket installed to gear housing assembly.
18. Set dial indicator as shown in the figure. Measure vertical move-
ment of rack assembly when pinion is turned clockwise with
torque of 19.6 N·m (2.0 kg-m, 14 in-lb). Readjust adjusting
screw angle if the measured value is outside the standard.
Replace gear assembly if the measured value is still outside the
standard or adjusting screw rotating torque is 5 N·m (0.51 kg-m,
44 in-lb) or less.
19. Install large end of boot to gear housing assembly.
20. Install small end of boot to inner socket boot mounting groove.
21. Install boot clamp to boot small end.
22. Install large side of boot clamp.

Tighten large side of boot with boot clamp (stainless wire).

Wrap clamp around boot groove for two turns. Insert a flat-
bladed screwdriver in loops on both ends of wire. Twist 4 to
4.5 turns while pulling them with force of approximately 98 N
(10 kg, 22 lb).
Pinion rotating torque standard
Around neutral position
(Within ±100°) Average A0.8 - 2.0 N·m
(0.09 - 0.20 kg-m, 7 - 17 in-lb)
Maximum variation B 2.3 N·m (0.23 kg-m, 20 in-lb)
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Measuring pointRack axial direction 5 mm (0.20 in) from housing end surface
Rack radial direction Axial direction of the adjusting screw
Vertical movement of rack 0.265 mm (0.0104 in)
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Wire length L : 390 mm (15.35 in)
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PS-28
POWER STEERING GEAR AND LINKAGE


Twist boot clamp as shown. Pay attention to relationship
between winding and twisting directions.

Twisted point of clamp is in the opposite side of adjusting
screw as shown in the figure (to prevent contact with other
parts).

Bend cut end of the wire toward rack axial as shown in the fig-
ure after twisting the wire 4 to 4.5 turns so that cut end does
not contact with boot.
CAUTION:
Keep gap from cylinder tube 5 mm (0.20 in) or more.
23. Install cylinder tubes to gear housing assembly.
24. Adjust inner socket to standard length L, and then tighten lock
nut to the specified torque. Refer to PS-20, "
COMPONENTS" .
Check length of inner socket L again after tightening lock nut .
Make sure that the length is the standard.
CAUTION:
Adjust toe-in after this procedure. Length achieved after
toe-in adjustment is not necessary the above value.
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Inner socket length L : 127.3 mm (5.01 in)
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PS-30
POWER STEERING OIL PUMP

Removal and InstallationBGS0003Z
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove tyres from vehicle.
3. Remove side splash guard.
4. Remove heat insulator from vehicle. (Except for QR20DE mod-
els).
5. Loosen drive belt. Refer to EM-14, "
DRIVE BELTS" (QR20DE
models), EM-128, "
DRIVE BELTS" (Except for QR20DE mod-
els).
6. Remove drive belt from oil pump pulley.
7. Disconnect the pressure sensor electrical connector.
8. Remove piping of high pressure and low pressure (drain fluid
from their pipings). Refer to PS-39, "
HYDRAULIC LINE" .
9. Remove power steering oil pump mounting bolts, and then
remove power steering oil pump. Refer to PS-39, "
HYDRAULIC
LINE" .
INSTALLATION

Installation is the reverse order of removal. For tightening torque, refer to PS-39, "HYDRAULIC LINE" .

Perform the following procedure after installing.
–Adjust belt tension (Except for QR20DE models). Refer to EM-128, "DRIVE BELTS" .
–About the installation of QR20DE drive belt, refer to EM-14, "DRIVE BELTS" .
–Bleed air. Refer to PS-7, "Air Bleeding Hydraulic System" .
SGIA0502E

PS-34
POWER STEERING OIL PUMP


When installing rotor, turn mark face on rotor to body assem-
bly.
7. Install vane to rotor so that arc of vane faces cam ring side.
8. Check drive shaft turns smoothly.
9. Install gasket to body assembly.
10. Install rear cover to body assembly, and then tighten mounting
bolts to the specified torque.
11. Install bracket to body assembly, and then tighten mounting
bolts to the specified torque.
12. Install pulley and washer to drive shaft, and then tighten lock nut
to the specified torque.
13. Install spring, flow control valve and copper washer to body
assembly, and then tighten mounting bolt to the specified torque.
14. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
15. Install suction pipe to body assembly.
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SST843A
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PS-38
POWER STEERING OIL PUMP

7. Install rotor so that mark faces body assembly side, and then
install it to pulley shaft.
8. Install vane to rotor so that arc of vane faces cam ring side.
9. Install rotor snap ring to slit of pulley shaft using a hammer and a
10 mm (0.39 in) socket.
CAUTION:

Do not damage rotor and pulley shaft.

Power steering oil pump must be replaced if rotor is dam-
aged.
10. Install rear side plate with dowel pin A on flow control valve A
side as shown in the figure aligning with rear side plate cutout B
to cartridge.
11. Apply recommended fluid to O-ring, and then Install O-ring to
body assembly.
12. Apply recommended fluid to O-ring, and then install O-ring to
rear side plate.
13. Apply recommended fluid to Teflon ring, and then install Teflon
ring to rear side plate.
14. Install rear cover to body assembly, and then tighten mounting
bolts to the specified torque.
15. Apply recommended fluid to O-ring, and then install O-ring to body assembly.
16. Install suction pipe to body assembly.
17. Install rear bracket to rear cover, and then tighten mounting bolts to the specified torque.
18. Install front bracket to body assembly, and then tighten mounting bolts to the specified torque.
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HYDRAULIC LINE
PS-41
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Insert hose securely until it contacts tube spool (Do not
apply fluid).

Install eye-bolt with eye-joint (assembled to high-pressure
hose) protrusion facing with pump side cutout, and then
tighten it to the specified torque after tightening by hand
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