lock LAND ROVER DEFENDER 1999 Workshop Manual

51REAR AXLE AND FINAL DRIVE
10
OVERHAUL REAR HUB ASSEMBLY - 90
Service repair no - 64.15.13.
1.Remove rear hubSee Repair. Rear hub
assembly.
2.Remove outer bearing.
3.Mark, for reassembly, position of hub to brake
disc.4.Remove 5 bolts and separate hub from brake
disc.
WARNING: A maximum of two road wheel
retaining studs can be renewed. Should
more studs be unserviceable fit new hub
with studs.
5.Remove grease seal and inner bearing from
hub.
6.Remove inner and outer bearing tracks.
REAR HUB COMPONENTS - 90
1.Axle shaft.
2.Axle shaft joint washer.
3.Axle shaft retaining bolt.
4.Lock nut.
5.Lock washer.
6.Hub adjusting nut.
7.Spacing washer.8.Outer bearing.
9.Hub.
10.Inner bearing.
11.Grease seal.
12.Brake disc.
13.Disc retaining bolt.
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FRONT AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION DESCRIPTION
The welded steel front axle casing houses a separate
spiral bevel type differential unit, which is off-set to the
right of the vehicle centre line. The differential unit
drives the front wheels via the axle shafts and
constant velocity joints which are totally enclosed in
the spherical and swivel housings.The front wheels are pivoted on tape roller bearings at
the top and bottom of the swivel housing. The wheel
hubs on all axles are supported by two taper bearings
and driven by drive flanges which are splined to the
one piece, stub shaft/constant velocity joint.
Front axle hub and swivel housing
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Stub axle
6.Wheel bearings
7.Inner and outer hub seals
8.Axle shaft seal
9.Hub lock plate, thrust washer and nuts
10.Brake disc
11.Drive flange
12.Shim washer and circlip13.Dust cap
14.Constant velocity joint/shaft
15.Thrust collar for CV joint
16.Roller bearing
17.Spacer
18.Circlip
19.Top and bottom swivel taper bearing
20.Top and bottom swivel pins
21.Spherical housing, seal and retainer
22.Swivel housing
23.Constant velocity shaft seal
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FRONT AXLE AND FINAL DRIVE
1
FAULT DIAGNOSIS FAULT DIAGNOSIS
Complaint - Oil leaks
An external leak of lubrication can be caused by a
faulty internal seal. For example, if the seals which
separate the differential from the swivel housings are
faulty and the vehicle is operating or parked on an
embankment, oil may leak across the axle leaving one
swivel with a high level and the opposite swivel and
differential lacking lubrication.
See’Description and Operation’for illustrations of oil
seal locations.
When investigating leaks or checking oil levels, it is
essential that all the lubrication is drained from any
housing with a high level and that the other levels are
checked.
Swivel oil should be checked for signs of grease
leaking from the hub bearings and oil contamination of
the hub grease.
Check that the axle ventilation system is clear, as a
blockage can cause internal pressure to force oil past
the seals.
If the vehicle is driven in deep water with defective oil
seals, water may contaminate the lubricants and when
checked, give a false impression that the housing has
been over filled with oil.
Do not assume that a high oil level is due to over
filling or, that a low level is because of an external
leak.
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54FRONT AXLE AND FINAL DRIVE
6
OVERHAUL 38.Place retaining plate, joint washer and oil seal
over axle flange ready for assembly.
39.Fit swivel bearing housing to axle flange with 7
bolts. Tighten to73 Nm (54 lbf/ft).
40.Grease and fit upper and lower swivel pin taper
roller bearings.
41.Position swivel pin housing over swivel bearing
housing.
42.Coat joint washer both sides with sealing
compound and position on lower swivel pin.
43.Loosely fit brake shield bracket plus lower swivel
pin with lug outboard to swivel pin housing.
44.Loosely fit top swivel pin plus existing shims and
brake hose bracket to swivel pin housing.
45.Apply Loctite 270 or equivalent to lower swivel
pin bolts.25 Nm (18 lbf/ft),bend over lock tabs.
46.Tighten top swivel pin bolts to65 Nm (48 lbf/ft).
Check and adjust preload on bearings
NOTE: Swivel housing oil seal and axle
should not be fitted.
47.Attach a spring balance to track rod ball joint
bore and pull balance to determine effort
required to turn swivel pin housing.
Resistance, once initial inertia has been
overcome, should be1.16 to 1.46 kg.Adjust by
removing or adding shims to top swivel pin.
48.When setting is correct remove top swivel bolts,
apply Loctite 270 or equivalent. Refit bolts and
tighten to65 Nm (48 lbf/ft),and bend over lock
tabs.
49.Apply recommended grease between lips of
swivel oil seal.50.Fit oil seal, joint washer and retaining plate with
7 bolts and spring washers. Tighten to11 Nm (8
lbf/ft).
51.Fit tie rod and drag link and secure with new
cotter pins. Tighten fixing to40 Nm (30 lbf/ft).
52.Fit brake disc shield.
53.Loosely fit lock stop bolt and nut.
54.Apply a recommended grease between lips of
swivel housing oil seal.
55.Secure oil seal with retaining plate and securing
bolts. Tighten to11 Nm (8 lbf/ft).
56.Fit track-rod and drag link and secure with new
cotter pins.
57.Loosely fit lock stop bolt for later adjustment.
58.Fit brake disc shield.
Fit driveshaft and stub axle
59.Insert axle shaft, and when differential splines
are engaged, push assembly in fully.
CAUTION: Take care not to damage axle
shaft oil seals.
60.Place a new joint washer in position on swivelpin
housing to stub axle mating face. Coat threads
of stub axle bolts with Loctite 270.
61.Fit stub axle with flat at 12 O’clock position.
CAUTION: Ensure that constant velocity
joint bearing journal is butted against
thrust ring on stub axle before stub axle is
secured.
62.Place mud shield in position and secure stub
axle to swivel pin housing with 6 bolts and
tighten evenly to65 Nm (48 lbf/ft).
63.Fit brake jump hoses to brake jump hose
bracket.
64.Fit complete front hub assemblySee FRONT
SUSPENSION, Repair. Front hub bearings.
65.Check swivel pin housing oil drain plug is fitted.
66.Fill swivel assembly to correct level, with new oil
See MAINTENANCE , Under vehicle
maintenance.
NOTE: On later vehicles fill swivel pin
housing with 0.33 Litres of Molytex EP 00
grease.
67.Set steering lock stop boltsSee STEERING,
Adjustment. Steering lock stops.
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STEERING
3
REPAIR Refit
NOTE: The steering column is a
non-servicable component and can only
be serviced as a complete assembly.
29.Fit mounting bracket to column and manouvre
assembly into position.
NOTE: Ensure marks on upper and lower
columns are aligned.
30.Loosely fit bolts securing mounting bracket to
bulkhead.
31.Fit upper clamp and rubber packing to column.
32.Loosely fit bolts securing upper clamp to
mounting bracket.
33.Loosely fit bolts securing 2 halves of upper
clamp.
34.Loosely fit bolts securing column lower mounting
bracket.
35.Fit bolt securing upper tie bar to steering column
and tighten to22 Nm (16 lbf.ft).
36.Tighten mounting bracket to bulkhead bolts,
clamp bolts, and lower mounting bolts.
M6 bolts =9 Nm (6 lbf.ft)
M8 bolts =22 Nm (16 lbf.ft)
37.Manouvre brake pedal box assembly and NEW
gasket into position in vehicle.
38.Tighten bolts securing brake pedal box to
bulkhead to25 Nm (18 lbf.ft)
39.Connect brake pedal switch Lucars.
40.Reposition mat to underside of fascia.
41.Secure ABS modulator multiplug to side of brake
pedal box.
42.Fit brake servo.See BRAKES, Repair.
43.Fit ignition switch to steering column, ensuring
inner shaft slot aligns with steering lock plunger.
44.Evenly tighten clamp bolts, but DO NOT shear at
this stage.
45.Temporarily fit steering wheel and check for
correct operation of switch and lock.
46.Remove steering wheel.
47.Fully tighten ignition switch bolts until heads
shear.48.Connect Lucars to rear of ignition switch.
49.Fit passive coil to ignition switch and connect
multiplug.
50.Fit switch assembly to steering column and
tighten clamping screw.
51.Connect column switch multiplugs.
52.Fit instrument pack.See INSTRUMENTS,
Repair.
53.Fit steering column nacelle.See this Section.
54.Fit bolt securing upper column to lower column
universal joint and tighten to25 Nm (18 lbf.ft).
55.Fit air inlet pipe between turbo and inlet air filter
and secure with clips.
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76 - CHASSIS AND BODY
CONTENTS
Page
PLASTIC SHEET - REAR DOOR - FROM 02MY 34..............................................
LOCK - TAIL DOOR - FROM 02MY 35...................................................................
LOWER FASCIA PANEL - FROM 02MY 36...........................................................
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76CHASSIS AND BODY
2
REPAIR TRIM CASING - TAIL DOOR - UP TO 02MY
Service repair no - 76.34.09
Remove
1.Remove 2 bolts securing grab handle to tail
door.
2.Remove grab handle.
3.Remove 2 screws securing wiper motor cover.
4.Remove wiper motor cover.
5.Remove 7 screws securing trim casing to door.
6.Remove 2 screws securing wiper motor harness
cover.
7.Remove harness cover.
8.Release 7 of 8 trim studs securing trim casing.
9.Remove trim casing from remaining stud.
10.Collect door lock cover.Refit
11.Position door lock cover.
12.Position trim casing and secure trim casing.
13.Position harness cover and secure with screws.
14.Secure trim pad with screws.
15.Fit wiper motor cover and secure with screws.
16.Fit grab handle and secure with screws.
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CHASSIS AND BODY
5
REPAIR
13.Remove 4 bolts securing radiator mounting
bracket to wing.
14.Loosen screw and release bonnet lock inner
cable from bonnet lock.
15.Release bonnet lock outer cable from from
bonnet lock.
16.Push centre pins from studs securing wheel arch
extension to wing, remove studs and remove
wheel arch extension.
17.Remove bolt securing inner and outer wing to
chassis.
18.Remove nut and bolt securing support stay to
wing.
19.Remove 4 bolts securing wing to’A’post.
20.Remove bolt securing wing to bulkhead.
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CHASSIS AND BODY
7
REPAIR Refit
29.Fit bonnet cable grommet.
30.Fit side repeater lamp to wing.
31.Fit headlamp sealing ring, fit headlamp and
tighten screws.
32.Fit headlamp finisher, side and indicator lamps
and tighten screws.
33.Fit grille support bracket and tighten bolt.
34.With assistance, position and align wing to body
and locate bonnet cable to wing.
35.Connect headlamp, indicator, side lamp and side
repeater lamp multiplugs.
36.Fit bolt securing wing to bulkhead.
37.Fit bolts securing wing to’A’post.
38.Fit nut and bolt securing support stay to wing.
39.Fit bolt securing inner and outer wing to chassis.
40.Fit bolts securing radiator bracket to wing.
41.Fit bolts securing outer wing to inner wing.
42.Align wing and finally tighten all bolts.
43.Position wheel arch extension to wing, and fit
securing studs.
44.Position PAS reservoir to wing and tighten bolts.
45.Position expansion tank pipe and secure with
studs.
46.Position EGR solenoid and tighten bolts.
47.Position heater air intake seal and fit air intake.
48.Fit heater air intake bracket and tighten bolts.
49.Fit heater air intake grille and tighten screws.
50.Align air cleaner intake elbow, tighten screws
and fit grille.
51.Fit wheel arch liner.See this Section.
52.Position bonnet release cable to lock and tighten
screw.
53.Fit cooling fan cowl.
54.Fit front grille.See this Section.STEP - FOLDING - REAR DOOR
Service repair no - 76.10.41
Remove
1.Remove 2 bolts securing step to chassis
member, remove step and collect spacers.
Refit
2.Position step, fit spacer washers and tighten
bolts.
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CHASSIS AND BODY
17
REPAIR TRIM CASING - REAR DOOR
Service repair no - 76.34.04.99
Remove
1.Remove screw securing door handle
escutcheon.
2.Remove escutcheon.
3.Remove interior lock button bezel.
4.Remove retaining clip and remove door glass
regulator handle.
5.Release covers and remove 2 screws securing
door pull to door.
6.Carefully release 12 clips securing trim casing to
door and remove door casing.Refit
7.Fit trim casing to door and secure with clips.
8.Fit door glass regulator handle.
9.Fit escutcheon to door handle and tighten screw.
10.Fit door lock button bezel.
11.Fit door pull and secure with screws.
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