NISSAN X-TRAIL 2003 Service Repair Manual

FRONT WHEEL HUB AND KNUCKLE
FAX-7
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FRONT WHEEL HUB AND KNUCKLEPFP:40202
On-Vehicle InspectionEDS0005R
Inspect to check that there is no excessive play, cracking, wear, or
other damage to front axle.

Turn front wheels (left/right) and check the play.

Check that no nails or other foreign objects are embedded.

Retighten all axle nuts and bolts to the specified torque.
FRONT WHEEL BEARINGS
With the vehicle raised, inspect the following.

Move wheel hub in the axial direction by hand. Check that there is no looseness of front wheel bearings.

Rotate wheel hub and check that there is no unusual noise or other irregular conditions. If there are any
irregular conditions, replace the wheel bearing.
Removal and InstallationEDS0005S
REMOVAL
1. Remove tyre. Remove brake hose lock plate from strut.
2. Remove brake caliper from steering knuckle. Hang it in a place where it will not interfere with work. Refer
to BR-27, "
FRONT DISC BRAKE" .
CAUTION:
Avoid depressing the brake pedal with brake caliper removed.
3. Remove wheel sensor from steering knuckle. Refer to BRC-116, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
SMA525A
Axial end play : 0.05 mm (0.002 in)
1. Steering knuckle 2. Splash guard 3. Wheel bearing assembly
4. Snap ring 5. Wheel hub 6. Hub bolt
7. Cotter pin
SDIA0131E

FAX-8
FRONT WHEEL HUB AND KNUCKLE

4. Remove cotter pin. Use a hub lock nut wrench to remove lock
nut from drive shaft.
5. Remove disc rotor from wheel hub.
6. Remove cotter pin. Use a ball joint remover to remove tie rod
from steering knuckle.
CAUTION:
When using a ball joint remover, install nuts temporarily.
7. Remove steering knuckle from strut.
8. Remove drive shaft from steering knuckle.
9. Remove cotter pin. Use a ball joint remover to remove trans-
verse link from steering knuckle.
CAUTION:
When using a ball joint remover, install nuts temporarily.
INSPECTON AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection

Check for boot breakage, axial looseness, and torque of transverse link ball joint. Refer to FSU-10,
"INSPECTION AFTER REMOVAL" .
INSTALLATION

Refer to FAX-7, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.
Disassembly and AssemblyEDS0005T
DISASSEMBLY
1. Set steering knuckle on bench vise at point where strut is
attached. Use a sliding hammer (SST) and attachment (SST) to
remove wheel hub and bearing assembly from steering knuckle.
CAUTION:
When placing onto vise, be careful not to damage strut
mounting surface of steering knuckle. Use an aluminum
plate or another suitable tool.
2. As shown in the figure, use a puller (suitable tool), drift (SST),
and bearing replacer (SST) to remove inner race of outer wheel
bearing from wheel hub.
3. Use a flat-bladed screwdriver or similar tool to remove snap ring.
CAUTION:
Be careful not to scratch the steering knuckle.
4. Fix steering knuckle to bench vise. Use a flat-bladed screwdriver
and hammer to remove splash guard from steering knuckle.
SFA649A
FAC0104D
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FRONT WHEEL HUB AND KNUCKLE
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5. Use a drift (SST) and a press to remove wheel bearing.
INSPECTION AFTER DISASSEMBLY
Wheel Hub

Check wheel bearings for damage, seizure, and corrosion. Also check wheel hubs for cracks (using a die
test or other method). Replace if any irregular conditions are found.
Steering Knuckle

Check steering knuckle for deformation, cracks, and other damage. Replace if any irregular conditions are
found.
Snap Ring

Check snap ring for wear or other damage. Replace if any irregular conditions are found.
ASSEMBLY
1. Use a drift (SST) to install splash guard onto steering knuckle.
CAUTION:
Discard the old splash guard; replace with a new one.

Install splash guard in position shown in the figure.
2. Use a drift (SST) and a press to press-fit wheel bearing onto
steering knuckle.
CAUTION:
Discard the old wheel bearing; replace with a new one.
3. Install snap ring onto steering knuckle.
SDIA0589E
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SDIA0590E
SDIA0591E

FAX-10
FRONT WHEEL HUB AND KNUCKLE

4. Use a drift (SST) and a press to install wheel hub.
5. As shown in the figure, apply a load of 34,324 – 49,033 N
(3500 – 5,000 kg, 7718 – 11,025 lb). Rotate in forward and
reverse directions 10 times each to ensure a good fit.
6. At a rotation speed of 10±2 rpm, place a spring balance at the
point where strut is joined (upper-side bolt hole). Measure rotat-
ing torque. Refer to FA X - 1 9 , "
Wheel Bearing" .
NOTE:
If a load of 34,300 – 49,033 N (3,500 – 5,000 kg, 7718 – 11,025 lb) cannot be applied, carry out the fol-
lowing actions.

Assemble drive shaft and tighten wheel hub lock nuts to specified torque. Then rotate in forward and
reverse direction 10 times each to ensure a good fit.

At a rotation speed of 10±2 rpm, place a spring balance on hub bolt to measure torque. Rotating torque : 1.645 N·m (0.17 kg-m, 15 in-lb) or
less
Spring balance
reading: 10.6 N (1.1 kg, 2.4 lb) or less
Rotation torque : 2.215 N·m (0.22 kg-m, 19 in-lb) or less
Spring balance reading : 37.2 N (3.8 kg, 8.4 lb) or less
SDIA0592E

FRONT DRIVE SHAFT
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FRONT DRIVE SHAFTPFP:39100
Removal and InstallationEDS0005U
REMOVAL
1. Remove tyre from vehicle.
2. Remove cotter pin. Use a hub lock nut wrench to remove lock
nut.
3. Remove wheel sensor from steering knuckle. Refer to BRC-116,
"WHEEL SENSORS" .
4. Use a pitman arm puller to remove tie rod from steering knuckle.
5. Remove lock plate from strut. Disconnect brake hose from strut.
Refer to BR-11, "
Removal and Installation of Front Brake Piping
and Brake Hose" .
6. Remove steering knuckle and strut installation bolts and nuts.
CAUTION:
Do not apply an excessive angle (22° or more) to drive shaft
joint. Firmly support steering knuckle so that slide joint is not excessively extended.
7. Use a puller to remove drive shaft from steering knuckle.
8. As shown in the figure, use a wheel wrench or other tool to
remove drive shaft from transaxle.
CAUTION:

When removing drive shaft from vehicle, be careful to
avoid interfering with brake hose, wheel sensor harness,
and other parts.

When removing drive shaft, do not apply an excessive
angle (22° or more) to drive shaft joint. Also be careful
not to excessively extend slide joint.

Do not lift drive shaft, with axle attached, by grasping
counter shaft only.

Do not allow drive shaft, with transaxle inserted, to hang down without support for counter
shaft, wheel joints, and other parts.

When the drive shaft listed below have been removed, check that a circular clip is attached to the end.
1. Support bearing bracket 2. Side flange 3. Drive shaft
4. Cotter pin
SDIA2333E
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FAX-12
FRONT DRIVE SHAFT

×: Applicable
–: Not applicable

Remove installation bolts from right-side drive shaft support bearing bracket. Then remove bracket from
engine.

Remove installation bolts from right-side drive shaft and remove drive shaft from side shaft.
INSPECTION AFTER REMOVAL

Move joint in up/down, left/right, and axial directions. Check for
motion that is not smooth and for significant looseness.

Check for cracking and damage of boots, and for grease leak-
age.
INSTALLATION

Install support bearing bracket onto engine and tighten installation bolts to specified torque. Refer to FA X -
11 , "Removal and Installation" .

Install drive shaft to side shaft and tighten installation bolts to specified torque. Refer to FA X - 11 , "Removal
and Installation" .
1. In order to prevent damage to differential side oil seal, first fit a
protector onto oil seal before inserting drive shaft. Slide drive
shaft slide joint and tap with a hammer to install securely.
CAUTION:
Be sure to check that circular clip is securely fastened.
2. Insert drive shaft into steering knuckle. Install lock nut and then
temporarily tighten lock nut. Refer to FA X - 11 , "
Removal and
Installation" .
3. Install installation bolts for steering knuckle and strut.
4. Use lock plate to fix brake hose to strut.
5. Install tie rod to steering knuckle.
6. Install wheel sensor.
7. Tighten lock nuts to specified torque. Refer to FAX-11, "
Removal
and Installation" .
8. Install cotter pin.
CAUTION:
Discard the old cotter pin; replace with a new one.
Engine typeDrive shaft with circular clip
Right Left
QR20DE and QR25DE –×
YD22DDTi –×
RAA0030D
Model type Protector SST No.
RH KV38107800
LH KV38105500
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FRONT DRIVE SHAFT
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Disassembly and AssemblyEDS0005V
DISASSEMBLY
Transaxle Side
1. Remove boot bands.
2. Fix shaft to bench vise.
CAUTION:
When fixing shaft to bench vise, be sure to protect it with a copper or aluminum sheet.
3. Put match marks on shaft and spider assembly.
CAUTION:
Use paint or similar substance for alignment marks. Do not
scratch the surface.
4. Remove snap ring. Remove spider assembly from shaft.
5. Remove boot from shaft.
6. Remove dynamic damper from shaft.
SDIA2336E
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FRONT DRIVE SHAFT

Wheel Side
1. As shown in the figure, use a bearing replacer (suitable tool) and
puller (suitable tool) to remove sensor rotor from drive shaft.
2. Press shaft in a vise.
CAUTION:
When retaining shaft in a vise, always use copper or alumi-
num plates between vise and shaft.
3. Remove boot bands. Then remove boot from joint sub-assem-
bly.
4. Screw a drive shaft puller (suitable tool) 30 mm (1.18 in) or more
into threaded part of joint sub-assembly. Pull joint sub-assembly
out of shaft.
CAUTION:

If joint sub-assembly cannot be removed after five or
more unsuccessful attempts, replace the entire drive
shaft assembly.

Align sliding hammer and drive shaft and remove them
by pulling directly.
5. Remove boot from shaft.
6. Remove circular clip from shaft.
7. While rotating ball cage, remove old grease on joint sub-assembly with paper towels.
INSPECTION AFTER DISASSEMBLY
Shaft

Replace shaft if there is any runout, cracking or other damage.
Joint Sub-Assembly

Make sure there is no rough rotation or unusual axial looseness.

Make sure there is no foreign material inside joint sub-assembly.

Check joint sub-assembly for compression scars, cracks or fractures.
CAUTION:
If there are any irregular conditions of joint sub-assembly components, replace the entire joint
sub-assembly.
Slide Joint Side
Housing and spider assembly

If roller or roller surface of spider assembly has scratch or wear, replace housing and spider assembly.

If there is circumferential looseness or rough rotation of spider roller, replace spider assembly.
NOTE:
Housing and spider assembly are components which are used as a set.
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SDIA0606E

FRONT DRIVE SHAFT
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ASSEMBLY
Transaxle Side
1. Wind serrated part of drive shaft with tape. Install boot band and
boot to shaft. Be careful not to damage boot.
CAUTION:
Discard the old boot band and boot: replace with new ones.
2. Remove protective tape wound around serrated part of shaft.
3. Line up alignment marks which were made when spider assem-
bly was removed. Install spider assembly, with serration chamfer
facing drive shaft.
4. Secure spider assembly with snap ring.
CAUTION:
Discard the old snap ring: replace with new ones.
5. Apply Nissan genuine grease or equivalent to spider assembly
and sliding surface.
6. Install sliding joint housing to spider assembly. Add remaining
grease up to the amount listed below.
7. Install boot securely into grooves (indicated by * marks) shown
in the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of joint, boot may come off. Remove all grease from
surfaces.
8. Check that boot installation length “L” is the length indicated
below. Insert flat bladed screwdriver or similar tool into smaller
side of boot. Remove air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less than
standard value.

Be careful that screwdriver tip does not contact inside
surface of boot.
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Grease amount : 132 - 142 g (4.69 - 5.04 oz)
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Boot installation length:
84 - 86 mm (3.31 - 3.39 in)
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FRONT DRIVE SHAFT

9. Secure big and small ends of boot with new boot bands as
shown in figure.
CAUTION:
Rotate housing and check that boot installation position
does not change. If position changes, reinstall boot bands.
Wheel Side
1. Use a drift (SST) to press-fit sensor rotor into joint sub-assem-
bly.
CAUTION:

Discard the old sensor rotor; replace with a new one.
2. Insert the amount of grease (NISSAN genuine grease or equiva-
lent) into joint sub-assembly serration hole until grease begins to
ooze from ball groove and serration hole. After inserting grease,
use a shop cloth to wipe off old grease that has oozed out.
3. Wind serrated part of shaft with tape. Install new boot band and
boot to shaft. Be careful not to damage boot.
CAUTION:
Discard old boot band; replace with new ones.
4. Remove protective tape wound around serrated part of shaft.
5. Attach new circular clip to shaft. At this time, circular clip must fit
securely into shaft groove. Attach nut to joint sub-assembly.
CAUTION:
Discard old circular clip; replace with new ones.
6. Insert the amount of new grease (NISSAN genuine grease or
equivalent) listed below into housing from large end of boot.
SDIA0601E
SDIA0619E
Grease amount : 115 – 125 (4.01 – 4.41 oz)
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