2008 NISSAN TEANA Service Manual

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NISSAN TEANA 2008 Service Manual STEERING GEAR AND LINKAGE
ST-19
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Removal and InstallationINFOID:0000000003806323
REMOVAL
1. Set the vehicle to the straight-ahead position.
2. Remo

STEERING GEAR AND LINKAGE
ST-19
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Removal and InstallationINFOID:0000000003806323
REMOVAL
1. Set the vehicle to the straight-ahead position.
2. Remove front tires.
3. Remove splash guards (RH and LH). Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
4. Remove engine under cover. Refer to EXT-28, "
Exploded View".
5. Remove heat insulator from front floor.
6. Remove cotter pin (1), and then loosen the nuts.
7. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using suitable ball joint
remover.
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover from suddenly coming
off.
8. Remove high pressure piping and low pressure hose of hydrau-
lic piping, and then drain power steering fluid.
9. Remove steering hydraulic piping bracket from front steering
gear assembly.
10. Remove power steering solenoid valve harness connector and harness clip.
11. Separate the lower shaft from the steering gear assembly by sliding the slide shaft.
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and
steering gear assembly. Be sure to secure steering wheel using string to avoid turning.
12. Remove the front stabilizer assembly. Refer to FSU-16, "
Exploded View".
13. Remove the mounting bolts and nuts of steering gear assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Be sure to secure steering wheel using string to avoid turning.
10. Boot clamp 11. Boot 12. Inner socket
13. Boot clamp (stainless wire) 14. Spacer 15. Cylinder tube
16. Gear housing assembly 17. Rack oil seal 18. Rack assembly
19. Rack Teflon ring 20. O-ring 21. End cover assembly
: Apply power steering fluid.
: A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o n d 1111 B o r e q u i v a l e n t .
: Apply Genuine High Strength Thread Locking Sealant, Loctite 271 or equivalent.
: Apply multi-purpose grease.
Refer to GI-4, "
Components" for symbols not described on the above.
JSGIA0320ZZ
: Bolt
JSGIA0321ZZ

Page 4410 of 5121

NISSAN TEANA 2008 Service Manual ST-20
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STEERING GEAR AND LINKAGE
When installing low pressure hose (1), refer to the figure.
CAUTION:
Never apply fluid to the hose (1) and tube (2).
Insert hose securely un

ST-20
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STEERING GEAR AND LINKAGE
When installing low pressure hose (1), refer to the figure.
CAUTION:
Never apply fluid to the hose (1) and tube (2).
Insert hose securely until it contacts spool (A) of tube.
Leave clearance (L) when installing clamp (3).
When installing lower joint 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 gear-sub 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 of
gear housing assembly (B).
- Install slit part of lower joint (C) aligning with the rear cover cap
projection (A). Make sure that the slit part of lower joint (C) is
aligned with rear cover cap projection (A) and the marking position
of gear housing assembly (B).
After installation, bleed air from the steering hydraulic system.
Refer to ST-32, "
Inspection".
Perform final tightening of nuts and bolts on each part under
unladen conditions with tires on level ground when removing steer-
ing gear assembly. Check wheel alignment. Refer to FSU-7, "
Wheel Alignment Inspection".
Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to BRC-66, "
ADJUST-
MENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement" (VDC mod-
els).
Disassembly and AssemblyINFOID:0000000003806324
DISASSEMBLY
1. Remove low pressure piping.
CAUTION:
Disassemble and assemble steering gear assembly by fixing the mounting area with a vise using
copper plates.
Clean steering gear assembly with kerosene before disassembling. Be careful to avoid splash-
ing or applying any kerosene over connector of discharge port or return port.
2. Remove cylinder tubes from gear housing assembly.
3. Remove rear cover cap from gear-sub assembly.
4. Measure adjusting screw height “H”, and loosen adjusting
screw.
CAUTION:
Never loosen adjusting screw 2 turns or more.
Replace steering gear assembly if adjusting screw is
loosened 2 turns or more and it is removed.
5. Remove gear-sub assembly from gear housing assembly.
6. Remove O-ring from gear housing assembly.
7. Loosen outer socket lock nut, and remove outer socket.
8. Remove boot clamps, and then remove boot from inner socket.
CAUTION:Standard
L : 3 – 8 mm (0.12 – 0.31 in)
JSGIA0118ZZ
: Bolt
J S G I A 0 111 Z Z
SGIA0624E

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NISSAN TEANA 2008 Service Manual STEERING GEAR AND LINKAGE
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Never damage inner socket and gear housing assembly when removing boot. Inner socket and
gear housing assembly mus

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NISSAN TEANA 2008 Service Manual ST-22
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STEERING GEAR AND LINKAGE
2. Heat rack Teflon ring to approximately 40°C (104°C) with a
dryer. Assemble it to mounting groove of rack assembly.
CAUTION:
Never reuse rack

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NISSAN TEANA 2008 Service Manual STEERING GEAR AND LINKAGE
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d. Wrap an OHP sheet [approximately 70 mm (2.76 in) × 100 mm
(3.94 in)]. Around the edge to avoid damaging rack o

Page 4414 of 5121

NISSAN TEANA 2008 Service Manual ST-24
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STEERING GEAR AND LINKAGE
12. Apply recommended sealant into the thread of adjusting screw
(2 turns thread), and then screw in the adjusting screw until it
reaches height �

ST-24
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STEERING GEAR AND LINKAGE
12. Apply recommended sealant into the thread of adjusting screw
(2 turns thread), and then screw in the adjusting screw until it
reaches height “H” from gear housing assembly measured
before disassembling.
Use Genuine Liquid Gasket, Three Bond 1111B or equiva-
lent.
13. Move rack assembly 10 strokes throughout the full stroke so that
the parts can fit with each other.
14. Adjust pinion rotating torque with the following procedure.
a. Measure pinion rotating torque within ±180° of neutral position
of the rack assembly using Tools. Stop the gear at the point
where highest torque is read.
b. Loosen adjusting screw and retighten to 5.4 N·m (0.55 kg-m, 48
in-lb), and then loosen by 20 to 40°.
c. Measure pinion rotating torque using Tools to make sure that the
measured value is within the standard. Readjust if the value is
outside the standard. 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.
d. Apply recommended liquid gasket to inner socket and turn pinion fully to left with inner socket installed to
gear housing assembly.
e. Install dial indicator at 5 mm (0.20 in) (L) from the edge of gear
housing assembly (1), and tooth point.
f. Measure vertical movement of rack assembly when pinion is
turned clockwise with torque of 19.6 N·m (2.0 kg-m, 14 ft-lb).
Readjust adjusting screw angle if the measured value is outside
the standard.
If reading is outside of the specification, readjust screw angle
with adjusting screw.
CAUTION:
If reading is still outside of specification, or if the rotating torque of adjusting screw is less
than 5 N·m (0.51 kg-m, 44 in-lb), replace steering gear assembly.
Never turn adjusting screw more than twice.
Replace steering gear assembly when adjusting screw is removed or turned more than twice.
SGIA0624E
A: Preload gauge (SST: ST3127S000)
B: Preload adapter (SST: KV48103400)
SGIA1383E
Pinion rotating torque
Around neutral position
(within±100°) average (A): 2.27 – 3.05 N·m (0.24 –
0.31 kg-m, 20 – 26 in-lb)
Maximum variation (B) : 0.98 N·m (0.10 kg-m, 9.0
in-lb)
Vertical movement : 0.265 mm (0.0104 in)
SGIA0936E
JSGIA0104ZZ

Page 4415 of 5121

NISSAN TEANA 2008 Service Manual STEERING GEAR AND LINKAGE
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15. Install large end of boot to gear housing assembly.
16. Install small end of boot to inner socket boot mountin

Page 4416 of 5121

NISSAN TEANA 2008 Service Manual ST-26
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STEERING GEAR AND LINKAGE
e. Bent cut end of the wire toward rack axial as shown in the figure
after twisting the wire 4 to 4.5 turns so that cut end does not con-
tact wit

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