oil seal NISSAN PATROL 1998 Y61 / 5.G Front Suspension Workshop Manual

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

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

8. Remove bearing outer race and kingpin plug.
9. Remove oil seal from axle shaft.
Inspection
KNUCKLE FLANGE BEARING CAP
Replace knuckle ¯ange bearing if it is worn, pitted or corroded.
KNUCKLE FLANGE
Replace knuckle ¯ange if it is cracked.
Installation
1. Check kingpin plug for damage before installing. If damaged,
use a new one.
SFA874B
SFA875B
SFA870B
SFA894B
SFA877B
FRONT AXLE Ð Knuckle Flange
Removal (Cont'd)
FA-19

2. Using Tool, place bearing outer race in trunnion socket.
3. Install oil seal with tool.
4. Place scraper, grease seal and supporting ring in axle case.
Grease lip and circumference seals in axle case.
5. Apply recommended grease around trunnion socket spherical
area, then place knuckle ¯ange in trunnion socket.
6. Adjust rotating force of knuckle ¯ange (at hinge pin) to 4.9 to
14.7 N (0.5 to 1.5 kg, 1.1 to 3.3 lb) range by adding or remov-
ing upper and lower shims of same thickness. This adjustment
must be made without installing grease seal and axle shaft.
Shim thicknesses: Refer to SDS.
SFA878B
SFA879B
SFA880B
SFA881B
SFA882B
FRONT AXLE Ð Knuckle Flange
Installation (Cont'd)
FA-20