Land Rover Defender 90 Workshop 2nd Edition Nas Rover Manual

							47PROPELLER SHAFTS
2
REPAIR
18.Press each cup into its respective yoke up to
lower land of circlip grooves. Damage may be
caused to cups and seals if cups pass this point.
19.Fit circlips and check no end float exists.
20.Engage spider in yokes of sliding member. Fit
bearing cups and circlips as described in
instructions 14 to 19.
21.Fit grease nipples to spider and sliding member.
22.Apply instructions 14 to 19 to opposite end of
propeller shaft.
23.Fit grease nipple and lubricate.Refit
24.Fit propeller shafts to vehicle and tighten nuts to
47Nm, 35 lbf ft
Refit propeller shaft so sliding joint end of shaft
is fitted to transfer gearbox. 
						

							PROPELLER SHAFTS
1
SPECIFICATIONS, TORQUE TORQUE VALUES
Nm lbf ft
Propeller shaft flange nuts 47............................................... 35 
						

							REAR AXLE AND FINAL DRIVE
1
DESCRIPTION AND OPERATION DESCRIPTION
The welded steel rear 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 rear wheels via the axle shafts and fully
floating hubs which are mounted on tapered roller
bearings.Lubrication
The differential is lubricated with oil and the hub
bearings with grease. The hub bearings are fitted with
inner and outer seals. The outer seals prevent the
differential oil mixing with the hub grease and the
inner seals prevent dirt ingress into the hub.
Ventilation
Ventilation of the hub bearings is through the outer oil
seals and the differential ventilation pipe, which
terminates at a high level.
Rear axle hub
1.Axle casing
2.Ventilation pipe
3.Axle shaft
4.Wheel studs and hub
5.Wheel bearing stub axle
6.Wheel bearings (2)7.Inner hub seal
8.Outer hub/axle shaft seal
9.Hub lock plate, thrust washer and nuts (2)
10.Brake disc
11.Sensing ring - road speed 
						

							REAR AXLE AND FINAL DRIVE
1
FAULT DIAGNOSIS FAULT DIAGNOSIS
Complaint - Oil leaks
An external leak of lubricant from the hub seals can
be caused by a faulty internal seal. For example, if the
seals which separate the differential from the hubs are
faulty and the vehicle is operating or parked on an
embankment, oil from the differential may flood one
hub resulting in a lack of lubrication in the differential.
When a seal is found to be leaking check the axle
ventilation system, as a blockage can cause internal
pressure to force oil past the seals.
SeeDescription and Operationfor an illustration of
oil seal locations.
When investigating hub seal leaks, check the grease
for dilution with oil. Also check the differential oil level,
for signs of metal particles in the oil and the condition
of internal seals.
If the vehicle is driven in deep water with defective oil
seals, water may contaminate the lubricants and raise
the differential oil level, giving a false impression that
the housing has been overfilled.Do not assume that
a high oil level in the differential is due to over
filling or, that a low level is because of an external
leak. 
						

							REAR AXLE AND FINAL DRIVE
1
REPAIR REAR AXLE
Service repair no - 51.25.01
Remove
WARNING: Remove and refit of axle
requires a further 2 persons to steady the
axle when lowering or repositioning.
1.Drain brake system.
2.Support rear of chassis.
3.Remove rear road wheels.
4.Support axle weight with hydraulic jack.
5.Disconnect shock absorbers.
6.Disconnect flexible brake hose at RH chassis
crossmember and vetilation pipe at banjo
connection on axle casing.
7.Disconnect lower links at axle.8.Mark differential and propeller shaft flanges with
alignment marks for assembly.
9.Remove 4 nuts and bolts, lower propeller shaft
and tie to one side.
10.Disconnect pivot bracket ball joint at axle
bracket. Disconnect wheel speed sensor lead
plugs at LH side of chassis. Release sensor lead
retaining clips from chassis and A frame.
11.Release bolts and remove coil spring retaining
plates.
12.Lower axle and remove road springs.
13.Remove anti-roll bar links at axle
See REAR
SUSPENSION, Repair, anti-roll [sway] bar
ball joint links
14.Remove axle assembly.
Do not carry out further dismantling if component
is removed for access only.
15.Transfer components to new axle. 
						

							51REAR AXLE AND FINAL DRIVE
2
REPAIR Refit
16.Position axle and fit lower links. Tighten fixings
to
175 Nm, 130 lbf/ft.
17.If applicable, fit anti-roll bar links to axleSee
REAR SUSPENSION, Repair, anti-roll bar
joint links
.
18.Raise axle and locate road springs.
19.Fit coil spring retaining plates and secure with
fixing bolts.
20.Secure pivot bracket ball joint to axle bracket.
Tighten fixing to
175 Nm, 130 lbf/ft.
21.Reconnect road speed sensor lead plugs and
secure leads to chassis and A frame.
22.Align propeller shaft to differential drive flange
and tighten fixings to
48 Nm, 35 lbf/ft.
23.Reconnect flexible brake hose and axle
ventilation pipe.
24.Refit shock absorbers.
25.Fit road wheels.
26.Remove rear chassis support.
27.Bleed brake system.
See BRAKES, Repair,
brake system bleed 
						

							REAR AXLE AND FINAL DRIVE
3
REPAIR
Rear hub components
1.Nut - sensor ring
2.Axle shaft.
3.Axle shaft joint washer.
4.Axle shaft retaining bolt - 5 off.
5.Lock nut.
6.Lock washer.
7.Hub adjusting nut.
8.Spacing washer.9.Outer bearing.
10.Hub.
11.Inner bearing.
12.Grease seal.
13.Brake disc.
14.Disc retaining bolt - 5 off.
15.Sensor ring - engine management
REAR HUB ASSEMBLY
Service repair no - 64.15.01
Remove
1.Raise rear of vehicle and support rear axle onto
axle stands. Remove appropriate road wheel.
2.Release brake hose clips and remove brake
caliper bolts. Secure caliper to one side.
WARNING: Take care not to kink brake
hose.3.Remove 5 bolts and withdraw axle shaft.
4.Remove and discard joint washer.
5.Bend back lock washer tabs.
6.Remove locknut and lock washer. Discard lock
washer.
7.Remove hub adjusting nut.
8.Remove spacing washer.
9.Remove hub and brake disc assembly complete
with bearings. 
						

							51REAR AXLE AND FINAL DRIVE
4
REPAIR Refit
10.Clean stub axle.
11.Fit hub assembly to stub axle.
12.Fit spacing washer.
13.Fit hub adjusting nut. Tighten to
50 Nm, 37 lbf/ft
ensure hub is free to rotate with no bearing play.
Back off adjusting nut 90°and tighten to
10 Nm,
7 lbf/ft
.
14.Fit a NEW lock washer.
15.Fit locknut. Tighten to
61 Nm, 45 lbf/ft.
16.Tab over lock washer to secure adjusting nut
and locknut.
17.Using a NEW joint washer, fit axle shaft to hub.
Tighten bolts to
65 Nm, 48 lbf/ft.
18.Fit brake caliper. Tighten bolts to
82 Nm, 60
lbf/ft
. Secure brake pipes to axle casing.
19.Fit road wheel, remove axle stands and tighten
road wheel nuts to
130 Nm, 95 lbf/ft.
20.Operate footbrake to locate brake pads before
driving vehicle.DIFFERENTIAL ASSEMBLY
Service repair no - 51.15.01
Remove
1.Raise and support rear axle on axle stands.
Position drain tray and drain axle oil. Refit drain
plug.
2.Mark differential and propeller shaft flanges to
facilitate reassembly.
3.Remove 4 bolts and disconnect propeller shaft
from differential. Tie aside.
4.Remove hub drive member fixings and withdraw
axle half shafts sufficiently to disengage from
differential unit.
See rear hub assembly
5.Remove 10 locknuts securing differential to axle
case.
6.Withdraw differential unit.
NOTE: The differential unit can only be
serviced as a complete assembly with
matching drive pinion. 
						

							REAR AXLE AND FINAL DRIVE
5
REPAIR Refit
7.Ensure mating faces are clean and apply a bead
of RTV sealant to axle case flange.
8.Support differential unit and position on axle
casing.
9.Secure with lock nuts and tighten to
40 Nm,
30lbf/ft.
10.Align marks on flanges and secure propeller
shaft to differential. Tighten bolts to
48 Nm, 35
lbf/ft.
11.Refit half shafts.See Rear hub assembly
12.Refill axle oil with approved lubricant.See
LUBRICANTS, FLUIDS AND CAPACITIES,
Information, recommended lubricants and
fluids 
						

							REAR AXLE AND FINAL DRIVE
1
OVERHAUL REAR HUB ASSEMBLY
Service repair no - 64.15.14.
REAR HUB COMPONENTS
1.Nut - sensor ring
2.Axle shaft.
3.Axle shaft joint washer.
4.Axle shaft retaining bolt - 5 off.
5.Lock nut.
6.Lock washer.
7.Hub adjusting nut.
8.Spacing washer.9.Outer bearing.
10.Hub.
11.Inner bearing.
12.Grease seal.
13.Brake disc.
14.Disc retaining bolt - 5 off.
15.Sensor ring - engine management