front suspension NISSAN PATROL 2006 Service Manual

Edition: February 1998
Release: February 1998 (01)
Publication No.: SM8E-0Y61E0E
Reference No.: 7711346063GENERAL INFORMATIONGI
MAINTENANCEMA
ENGINE MECHANICALEM
ENGINE LUBRICATION &
COOLING SYSTEMSLC
ENGINE CONTROL SYSTEMEC
ACCELERATOR CONTROL,
FUEL & EXHAUST SYSTEMFE
CLUTCHCL
MANUAL TRANSMISSIONMT
AUTOMATIC TRANSMISSIONAT
TRANSFERTF
PROPELLER SHAFT &
DIFFERENTIAL CARRIERPD
FRONT AXLE & FRONT SUSPENSIONFA
REAR AXLE & REAR SUSPENSIONRA
BRAKE SYSTEMBR
STEERING SYSTEMST
RESTRAINT SYSTEMRS
BODY & TRIMBT
HEATER & AIR CONDITIONERHA
ELECTRICAL SYSTEMEL
ALPHABETICAL INDEXIDX
PATROL GR
MODEL Y61 SERIES
NISSAN EUROPE S.A.S.
1998 NISSAN EUROPE S.A.S.
Produced in The Netherlands
Not to be reproduced in whole or in part
without the prior written permission of
Nissan Europe S.A.S., Paris, France.
QUICK REFERENCE INDEX

1. Ensure vehicle is unladen condition*.* Fuel, radiator coolant and engine oil full. Spare tire, jack,hand tools and mats in designated positions.
2. Have a driver sit in the driver's seat and one person sit on the rear end. Then have the person on the rear end slowly get off
the vehicle. This is necessary to stabilize suspension de¯ec-
tion.
3. Gradually depress brake pedal and attach a lever to the stop- per bolt, then adjust length ``L'' as follows:Length ``L'': Approx. 175.2 - 178.2 mm (6.90 - 7.02 in)
4. Remove front LH tire.
5. Connect tool to air bleeders on front LH brake caliper and rear LH or RH brake wheel cylinder.
6. Install front LH tire.
Before installing front LH tire, con®rm the tool is not touching
the front LH wheel.
7. Bleed air from Tool.
8. Raise front brake pressure to 4,904 kPa (49.0 bar, 50 kg/cm
2,
711 psi) and 9,807 kPa (98.1 bar, 100 kg/cm2, 1,422 psi) and
check rear brake pressure. Rear brake pressure: Refer to table on next page.
SBR287E
SBR822BA
SBR823BA
SBR377D
BRAKE HYDRAULIC LINE/CONTROL VALVE
Load Sensing Valve (Cont'd)
BR-7

FRONT AXLE &
FRONT SUSPENSION
SECTION
FA
CONTENTS
PRECAUTIONS AND PREPARATION............................1
Precautions ..................................................................1
Special Service Tools ..................................................1
Commercial Service Tools ...........................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................3
NVH Troubleshooting Chart.........................................3
FRONT AXLE AND FRONT SUSPENSION...................4
ON-VEHICLE SERVICE..................................................5
Front Axle and Front Suspension Parts ......................5
Front Wheel Bearing....................................................5
Front Wheel Alignment ................................................8
FRONT AXLE Ð Drive ¯ange and Free-running
Hub.................................................................................10
FRONT AXLE Ð Manual-lock Free-running Hub...... 11
Removal ..................................................................... 11
Installation ..................................................................12
Inspection...................................................................12
FRONT AXLE Ð Auto-lock Free-running Hub..........13
Removal .....................................................................13
Installation ..................................................................13FRONT AXLE Ð Wheel Hub and Rotor Disc............14
Removal and Installation ...........................................14
Inspection...................................................................15
Assembly ...................................................................15
FRONT AXLE Ð Knuckle Flange................................17
Removal .....................................................................17
Inspection...................................................................19
Installation ..................................................................19
Knuckle Flange Grease Seal.....................................21
FRONT AXLE Ð Drive Shaft.......................................23
Inspection...................................................................23
Installation ..................................................................23
FRONT SUSPENSION..................................................24
Shock Absorber .........................................................25
Stabilizer Bar .............................................................25
Coil Spring .................................................................25
Leading Arm...............................................................26
Panhard Rod..............................................................26
SERVICE DATA AND SPECIFICATIONS (SDS)..........27
General Speci®cations ...............................................27
Inspection and Adjustment ........................................27
FA

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the symptom. If necessary, repair or replace these parts.
Reference pageFA-4
FA-25
Ð
Ð
Ð
FA-24
FA-8
FA-25
FA-5
FA-8
Ð
Ð
Ð
Ð
Ð
Ð
Ð
FA-23
Ð
NVH in PD section
NVH in PD section
Refer to FRONT AXLE AND FRONT SUSPENSION in this chart.
NVH in RA section
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
Refer to AXLE SHAFT in this chart.
NVH in BR section
NVH in ST section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or de¯ection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
Wheel bearing damage
Out-of-round
Imbalance
Incorrect air pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
Excessive joint angle
Joint sliding resistance
Imbalance
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
AXLE SHAFT
BRAKES
STEERING
SymptomFRONT
AXLE AND
FRONT
SUSPEN-
SIONNoiseXXXXXX XX XXXXXX
ShakeXXXX X X XXXXXX
VibrationXXXXX X XX X X
ShimmyXXXX X XXX XX
Judder X X XXXX XX
Poor quality ride
or handlingXXXXX XXX XXX
TIRESNoise XXXXXXX XXXX XXXX
Shake XXXXXX X X XX XXXX
Vibration X X X X X X X
Shimmy XXXXXXXX XX X XX
Judder XXXXXX X XX X XX
Poor quality ride
or handlingX XXXXX X XX X
ROAD
WHEELNoise X X X XXXXXX XXX
Shake X X X X X X X X X X X
Shimmy, judder X X X X X X X X X
Poor quality ride
or handlingX XX X XXX
AXLE
SHAFTNoise, vibration X XXXXXXX XX
ShakeX XX XXXX XX
X: Applicable
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FA-3

SFA850B
FRONT AXLE AND FRONT SUSPENSION
FA-4

Front Axle and Front Suspension Parts
Check front axle and front suspension parts for excessive play,
cracks, wear and other damage.
+Shake each front wheel to check for excessive play.
+Make sure that cotter pin is inserted.
+Retighten all axle and suspensions nuts and bolts to the speci-
®ed torque.
Tightening torque:
Refer to FRONT SUSPENSION (FA-24).
+Check front axle and front suspension parts for wear, cracks
and other damage.
+Check shock absorber for oil leakage and other damage.
+Check knuckle ¯ange for grease leakage and knuckle ¯ange
grease seal for cracks and other damage.
Front Wheel Bearing
+Check that wheel bearings operate smoothly.
+Check axial end play.
Axial end play:
0mm(0in)
+Adjust wheel bearing preload if there is any axial end play or
wheel bearing does not turn smoothly.
SMA525A
SFA851B
SFA852B
SFA413A
ON-VEHICLE SERVICE
FA-5

19. Pack drive ¯ange groove with grease, apply grease to O-ring
and mating surface of drive ¯ange, and install ¯ange.
20. Place snap ring in drive shaft groove. Choose snap ring so that
the gap between groove and snap ring is 0.4 mm (0.016 in) or
less.
Refer to SDS for selection of snap ring.
Front Wheel Alignment
Before checking front wheel alignment, be sure to make a prelimi-
nary inspection (Unladen*).
*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand
tools and mats in designated positions.
PRELIMINARY INSPECTION
1. Check tires for wear and improper in¯ation.
2. Check wheel runout on outside and inside.
Wheel runout average
[(Outside runout value + Inside runout value) x 0.5]:
Refer to SDS (FA-27).
3. Check front wheel bearings for looseness.
4. Check front suspension for looseness.
5. Check steering linkage for looseness.
6. Check that shock absorbers work properly.
7. Check vehicle posture (Unladen).
CAMBER, CASTER AND KINGPIN INCLINATION
Camber, caster and kingpin inclination are preset at factory
and cannot be adjusted.
1. Measure camber, caster and kingpin inclination of both right
and left wheels with a suitable alignment gauge.
Camber, Caster and Kingpin inclination:
Refer to SDS (FA-27).
2. If camber, caster or kingpin inclination is not within
speci®cation, inspect front suspension parts. Replace damaged
or worn out parts.
SFA417A
SFA418AA
SFA356B
SFA894
ON-VEHICLE SERVICE
Front Wheel Bearing (Cont'd)
FA-8

SFA889B
FRONT SUSPENSION
FA-24

Shock Absorber
REMOVAL AND INSTALLATION
1. Support front axle case with jack.
2. Remove both upper and lower sides ®xing nuts.
INSPECTION
Except for nonmetallic parts, clean all parts with suitable solvent
and dry with compressed air.
Use compressed air to blow dirt and dust off of nonmetallic parts.
+Check for oil leakage and cracks. Replace if necessary.
+Check piston rod for cracks, deformation and other damage.
Replace if necessary.
+Check rubber parts for wear, cracks, damage and deformation.
Replace if necessary.
Stabilizer Bar
REMOVAL
+Remove stabilizer bar connecting bolts and clamp bolts.
INSPECTION
+Check stabilizer bar for twist and deformation.
Replace if necessary.
+Check rubber bushing for cracks, wear and deterioration.
Replace if necessary.
INSTALLATION
+Install stabilizer bar with ball joint socket properly placed.
Coil Spring
INSPECTION
Visually check for cracks or damage. If faulty, replace.
Ensure that springs are installed correctly. Incorrect installa-
tion will cause vehicle not set in horizontal posture.
SFA890B
SFA891B
SFA896B
SFA897B
FRONT SUSPENSION
FA-25

Leading Arm
INSPECTION
Check for cracks, bends or damage. Also check bushing.
If bushing is faulty, replace it using suitable tool.
When installing bushing, make sure that it is positioned as shown.
Panhard Rod
INSPECTION
+Check for cracks or other damage. Replace if necessary.
Panhard rod bushing
Removal
+Using a press and suitable tool as shown in ®gure at left,
remove bushing from vehicle side.
+Using a ¯at-bladed screwdriver, pry bushing out of axle case.
Installation
+Using suitable tool shown in ®gure at left, gradually press bush-
ing into place.
Always install new bushing. Do not tap end face of bushing
directly with a hammer. Apply soap water to outer wall of bush-
ing before installation.
SFA460A
SFA892B
SFA462A
SRA030A
SFA893B
FRONT SUSPENSION
FA-26