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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
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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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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
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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
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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 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](/manual-img/5/57391/w960_57391-4412.png)
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 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
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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
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15. Install large end of boot to gear housing assembly.
16. Install small end of boot to inner socket boot mounting groove.
17. Install boot clamp to boot small end.
18. Install boot clamp to the large side of boot with the following procedure.
CAUTION:
Never reuse boot clamp.
a. Tighten large side of boot with boot clamp (stainless wire).
b. 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).
c. Twist boot clamp as shown. Pay attention to relationship
between winding and twisting directions.
d. Twisted area (A) of clamp is in the opposite side of adjusting
screw (1) as shown in the figure (to prevent contact with other
parts).
SGIA1325E
Wire length (L) : 370 mm (14.57 in)
SGIA0163E
SGIA0164E
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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 with boot.
19. Install cylinder tubes to gear housing assembly.
20. Install low pressure piping.
21. Adjust inner socket to standard length (L), and then tighten lock
nut to the specified torque. Check length again after tightening
lock nut.
CAUTION:
Adjust toe-in after this procedure. The length achieved after
toe-in adjustment is not necessary the above value.
InspectionINFOID:0000000003806325
INSPECTION 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".
Check the fluid level, fluid leakage, and air bleeding hydraulic system. Refer to ST-7, "
Inspection".
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
Check rack for damage or wear, and replace it if a malfunction is detected.
Gear-Sub Assembly
Check gear-sub assembly for damage or wear, and replace it if a malfunction is detected.
Rotate gear-sub assembly 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
Check the following items and replace the component if it does not meet the standard.
BALL JOINT SWINGING TORQUE
STC0124D
Standard
L : Refer to ST-38, "
Inner
Socket Length".
SGIA0167E