steering NISSAN TEANA 2008 Service Manual

ST-14
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STEERING COLUMN
9. Remove knee protector (1).
10. Disconnect each switch harness connectors installed to steering
column assembly.
11. Remove the upper joint mounting bolt and nut (lower shaft side),
and separate the joint from lower shaft.
12. Remove steering column assembly.
CAUTION:
 Never give axial impact to steering column assembly dur-
ing removal.
 Never move steering gear assembly when removing steering column assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
 Make sure there is no space between clip (1) and steering column assembly (2).
CAUTION:
Never reuse the clip.
 Tighten the mounting nuts in the order shown in the figure steering
member (1) when installing the steering column assembly (2).
 Be careful of the following points when installing the steering col-
umn assembly.
CAUTION:
 Never give axial impact to steering column assembly during
installation.
 Never move steering gear assembly.
 Never reuse the joint mounting nut (lower shaft side).
 Adjust neutral position of steering angle sensor. Refer to BRC-66,
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement" (VDC models).
InspectionINFOID:0000000003806318
INSPECTION AFTER REMOVAL
 Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
 Measure steering column assembly rotating torque using a preload gauge (SST: ST3127S000). Replace
steering column assembly if outside the standard.
: Bolt
JSGIA0344ZZ
JSGIA0346ZZ
JSGIA0387ZZ
Standard
Rotating torque : Refer to ST-37, "
Steering
Column Operating
Range".

STEERING COLUMN
ST-15
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 Measure the length (L) as shown, if vehicle has been involved in a
minor collision. Replace steering column assembly if out side the
standard.
 Install the bracket (1) and steering column housing (2) so that the
clearance (A) is within the specified range as described below.
Replace steering column assembly if out side the standard.
INSPECTION AFTER INSTALLATION
 Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
 Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-9, "
Inspection".
 Check tilt mechanism operating range (L), as shown in the figure.Standard
L : Refer to ST-37, "
Steering
Column Length".
JSGIA0388ZZ
Standard
A : Refer to ST-37, "
Steering
Column Mounting Dimen-
sions".
JSGIA0389ZZ
Standard
L : Refer to ST-37, "
Steering
Column Operating
Range".
JSGIA0390ZZ

ST-16
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LOWER SHAFT
LOWER SHAFT
Exploded ViewINFOID:0000000003806319
Removal and InstallationINFOID:0000000003806320
REMOVAL
1. Set the vehicle to the straight-ahead position.
2. Fix the steering wheel.
3. Remove upper joint fixing bolt and nut (lower shaft side).
4. Separate the lower shaft from the steering gear assembly by
sliding the slide shaft (A: sliding range).
CAUTION:
Spiral cable may be cut if steering wheel turns while sepa-
rating steering column assembly and steering column
assembly. Be sure to secure steering wheel using string to
avoid turning.
5. Remove the accelerator pedal assembly. Refer to ACC-3,
"Exploded View".
6. Remove the side brake pedal bracket and wire clamp stay.
7. Remove the hole cover mounting nuts.
8. Remove the hole cover seal, clamp and hole cover.
9. Remove lower shaft joint fixing bolt (steering gear side).
10. Remove the lower shaft.
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.
1. Steering column assembly 2. Hole cover seal 3. Clamp
4. Hole cover 5. Lower shaft
Refer to GI-4, "
Components" for symbols in the figure.
JSGIA0392GB
JSGIA0393ZZ

LOWER SHAFT
ST-17
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 After lower shaft (steering gear side) fitted, make sure there is not
gap (A) between the yoke (1), lower shaft (2), joint fixing bolt (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).
 Adjust neutral position of steering angle sensor. Refer to BRC-66,
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement".
 Check the following after installation:
- Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.
- Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to ST-9, "
Inspection".
InspectionINFOID:0000000003806321
 Check the length (A) (extended position) of the lower shaft.
 Check each part of lower shaft for damage or other malfunctions.
Replace if there are.
JSGIA0180ZZ
: Bolt
JSGIA0313ZZ
Standard
A : Refer to ST-38, "
Lower
Shaft Sliding Range".
JSGIA0405ZZ

ST-18
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STEERING GEAR AND LINKAGE
STEERING GEAR AND LINKAGE
Exploded ViewINFOID:0000000003806322
REMOVAL
DISASSEMBLY
1. Steering gear assembly 2. cotter pin
: Vehicle front
Refer to GI-4, "
Components" for symbols in the figure.
JSGIA0394GB
1. Low pressure piping 2. Rear cover cap 3. Gear-sub assembly
4. Power steering solenoid valve 5. O-ring 6. Adjusting screw
7. Spring 8. Retainer 9. Outer socket
JSGIA0396GB

STEERING GEAR AND LINKAGE
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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

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

STEERING GEAR AND LINKAGE
ST-21
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Never damage inner socket and gear housing assembly when removing boot. Inner socket and
gear housing assembly must be replaced if inner socket and gear housing assembly are damaged
because it may cause foreign material interfusion.
9. Remove inner socket and spacer from gear housing assembly.
10. Drill out the clinching part of gear housing assembly (end cover
assembly side) outer rim with a 3 mm (0.12 in) drill bit. [Drill for
approximately 1.5 mm (0.059 in) depth.]
11. Remove end cover assembly with a 36 mm (1.42 in) open head
(suitable tool).
CAUTION:
Never damage rack assembly surface when removing. Rack
assembly must be replaced if damaged because it may
cause fluid leakage.
12. Pull rack assembly together with rack oil seal (outer side) out
from gear housing assembly.
CAUTION:
Never damage cylinder inner wall when remove rack
assembly. Gear housing assembly must be replaced if dam-
aged because it may cause fluid leakage.
13. Heat rack Teflon ring to approximately 40°C (104°F) with a
dryer, and remove rack Teflon ring and O-ring from rack assem-
bly.
CAUTION:
Never damage rack assembly. Rack assembly must be
replaced if damaged because it cause fluid leakage.
14. Push rack oil seal inside with a 29 mm (1.14 in) socket and an
extension bar to push out rack oil seal (inner side) from gear
housing assembly.
CAUTION:
Never damage gear housing assembly and cylinder inner
wall. Gear housing assembly must be replaced if damaged
because it may cause fluid leakage.
ASSEMBLY
1. Apply recommended fluid to O-ring. Put an O-ring into a rack Teflon ring.
CAUTION:
Never reuse O-ring.
STC0013D
SST081B
SGIA0151E
SGIA0179E

ST-22
< ON-VEHICLE REPAIR >
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 Teflon ring.
3. Install the Teflon ring correcting tool (A) (SST: KV48104400)
from tooth side of rack fit rack Teflon ring (1) on rack. Compress
the with tool.
4. Apply recommended grease to rack oil seal, and then install
rack oil seal in the following procedure. Then assemble rack
assembly to gear housing assembly.
CAUTION:
 Install rack oil seal in a direction so that the lip of inner oil
seal and the lip of outer oil seal face each other.
 Never damage retainer sliding surface by rack assembly.
Replace gear housing assembly if damaged.
 Never damage gear housing assembly inner wall by rack
assembly. Gear housing assembly must be replaced if
damaged because it may cause fluid leakage.
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) (1) into rack assembly piston (2).
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.
SGIA0153E
SGIA1324E
SGIA0205E
SGIA0157E
JSGIA0323ZZ

STEERING GEAR AND LINKAGE
ST-23
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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 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 36 mm
(1.42 in) open head (suitable tool).
CAUTION:
Never 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.
7. Apply recommended fluid to O-ring, and then install O-ring to
gear housing assembly.
8. Install gear-sub assembly to gear housing assembly.
CAUTION:
In order to protect oil seal from any damage, insert gear-
sub assembly straightly.
9. Install inner socket and spacer to gear housing assembly with
the following procedure.
a. Apply recommended thread locking sealant into the thread of inner socket.
Use Genuine High Strength Thread Locking Sealant, Loctite 271 or equivalent.
b. Screw inner socket into rack part and tighten at the specified torque.
10. Decide on the neutral position of the rack stroke (L).
11. Install rear cover cap to gear sub-assembly.
CAUTION:
Make sure that the projection of rear cover cap is aligned
with the marking position of gear housing assembly.
SGIA0157E
SST081B
Standard
L : Refer to ST-38, "
Rack
Stroke".
SGIA0871E
SGIA0877E