1986 FORD SIERRA differential

5Refitting is a reversal of removal, with
reference to the note at the beginning of this
Section. Refit any shims in their original noted
positions, and tighten all bolts to the specified
torque.
Removal
1Loosen the rear roadwheel nuts, chock the
front wheels, jack up the rear of the vehicle
and support on axle stands placed under the
side members.
2Prise off the straps which connect the
anti-roll bar to the suspension lower arms
(see illustration).
3Unbolt the two securing brackets from the
underbody, and remove the anti-roll bar (see
illustration).
4The connecting straps can be prised from
the ends of the anti-roll bar, and the
underbody mounting brackets and rubbers,
which are of a split design, can be pulled off.
5When fitting new mounting components,
lubricate the rubber parts with soapy water to
ease assembly.
Refitting
6Refitting is a reversal of removal. Tighten
the anti-roll bar-to-underbody securing bolts
to the specified torque.
Note: All self-locking nuts and spring washers
must be renewed on reassembly.
Removal
1Chock the front wheels, jack up the rear of
the vehicle and support on axle stands placed
under the side members. Note that a loaded
vehicle must not be jacked under the
differential casing.2Support the rear axle with a jack, using an
interposed block of wood to spread the load.
3Remove the propeller shaft.
4Remove the securing circlip and the pivot
pin, and detach the handbrake equaliser from
the linkage on the underbody.
5Remove the handbrake cables from the
clips on the underbody, and from the brackets
on the crossmember. To remove the cables
from the crossmember, remove the U-shaped
retaining clips. Note that the cable adjuster is
secured to the right-hand crossmember
bracket. Ensure that the handbrake is
released before attempting to disconnect any
part of the mechanism.
6Unscrew the brake pipe from the brake
hose on the right-hand side of the chassis
crossmember. Plug the ends of the pipe and
hose to prevent leakage and dirt ingress, then
detach the hose from the crossmember by
removing the U-shaped retaining clip (see
illustration).
7Remove the spring clip and clevis pin and
disconnect the spring from the brake load
apportioning valve lever on the right-hand
side of the underbody (see illustration).
8Detach the exhaust system from the two
rear mountings.
9Unbolt the shock absorbers from the
chassis crossmember.
10Unbolt the leaf springs from the front
brackets on the underbody, (Section 19).
11Lower the rear axle.
12Loosen the spring shackle-to-underbody
bolts, then unbolt the leaf springs from the
spring shackles, and remove the rear
suspension and axle assembly from under thevehicle, guiding the handbrake cables over
the exhaust system.
Refitting
13Refitting is a reversal of removal, bearing
in mind the following points.
14Do not fully tighten the leaf spring
mounting bolts or the spring
shackle-to-underbody bolts until the weight of
the vehicle is resting on the roadwheels.
15Renew all self-locking nuts and spring
washers.
16On completion, check the brake load
apportioning valve adjustment and the
handbrake adjustment. Bleed the rear brake
circuit and check the axle oil level.
Note: All self-locking nuts and spring washers
must be renewed on reassembly.
Removal
1Chock the front wheels, jack up the rear of
the vehicle and support on axle stands placed
under the side members. Note that a loaded
vehicle must not be jacked under the
differential casing.
2Support the relevant side of the rear axle
with a jack, using an interposed block of
wood under the axle tube to spread the load.
3Unscrew the nuts, and remove the two
U-bolts on each side of the vehicle which
secure the axle to the leaf springs (see
illustration). Note that there is no need to
19Rear suspension leaf spring
(P100 models) - removal and
refitting
18Rear suspension and axle
assembly (P100 models) -
removal and refitting
17Rear anti-roll bar (Saloon,
Hatchback and Estate
models) - removal and refitting
Suspension and steering 11•13
11
17.3 Anti-roll bar-to-underbody securing
bracket
18.7 Remove the split pin (arrowed) from
the brake load apportioning valve lever
18.6 Brake pipe-to-hose connection on
right-hand side of chassis crossmember -
P100 models
1 Brake pipe
2 U-shaped clip3 Brake hose
17.2 Anti-roll bar-to-lower arm connecting
strap
19.3 Unscrew the nuts (arrowed) from the
rear axle-to-leaf spring U-bolts

disconnect the shock absorber from the
U-bolt counterplate.
4Unbolt the leaf spring from the front bracket
on the underbody (see illustration).
5Loosen the spring shackle-to-underbody
bolt, then unbolt the leaf spring from the
spring shackle and remove the spring (see
illustration).
Refitting
6Refitting is a reversal of removal, bearing in
mind the following points.
7Do not fully tighten the leaf spring mounting
bolts or the spring shackle-to-underbody bolt
until the weight of the vehicle is resting on its
roadwheels.
8Renew all self-locking nuts and spring
washers.
9Align the axle on the leaf spring so that the
locating pin on the spring engages with the
corresponding hole in the axle. Similarly
ensure that the U-bolt counterplate engages
with the locating pin on the leaf spring.
Note: All self-locking nuts and spring washers
must be renewed on reassembly.
Removal
1Chock the front wheels, jack up the rear of
the vehicle and support on axle stands placed
under the side members. Note that a loaded
vehicle must not be jacked under the
differential casing.2Support the relevant side of the rear axle
with a jack, using an interposed block of
wood under the axle tube to spread the load.
3Unscrew and remove the spring
shackle-to-underbody bolt and the leaf
spring-to-spring shackle bolt, and remove the
shackle components.
4Examine the components for wear and
damage and renew as necessary.
Refitting
5Refitting is a reversal of removal, but renew
all self-locking nuts and spring washers, and
do not fully tighten the bolts until the weight of
the vehicle is resting on its roadwheels.
Note: All self-locking nuts and spring washers
must be renewed on reassembly.
1Proceed as described in Section 19,
paragraphs 1 to 3 inclusive.
2Unbolt the relevant end of the leaf spring,
and lower it to gain access to the bush. Note
that if the shackle end of the spring is
unbolted, the shackle-to-underbody bolt
should be loosened in order to aid refitting.
3The bush can be removed using a long bolt
with nut, washers and a suitable metal tube.
4Lubricate the new bush with soapy water
and fit using the bolt, nut, washers and tube.
5Proceed as described in Section 19,
paragraphs 6 to 9 inclusive.
Removal
1Set the front wheels in the straight-ahead
position.
2Prise the trim insert from the centre of the
steering wheel, and where applicable,
disconnect the horn electrical lead(s) (see
illustration).
3Insert the ignition key and check that the
steering lock is disengaged.
4Unscrew the retaining nut and withdraw the
steering wheel from the hexagon shaped inner
column (see illustration). If the wheel is tight
on the inner column, sit in the driver’s seat
and tap the wheel from behind with the palms
of the hands (but screw the nut back on two
or three turns for safety).
Refitting
5Refitting is a reversal of removal, but check
that the lug on the direction indicator cam is
aligned with the cut-out in the steering wheel,
and make sure that the direction indicator
switch is in the neutral position. Tighten the
retaining nut to the specified torque.
1This operation is for correcting small errors
in steering wheel centralisation - up to 60º.
For larger errors, remove the steering wheel
and make a rough correction by repositioning
the wheel on refitting.
2Drive the vehicle in a straight line on a level
surface. Note the angle by which the steering
wheel deviates from the desired
straight-ahead position.
3Raise the front of the vehicle by driving it
onto ramps, or with a jack and axle stands.
4Slacken both tie-rod end locknuts. Also
slacken the steering rack bellows outer clips.
5Make alignment marks between each
tie-rod end and its rod, so that the amount of
rotation applied can be accurately determined
(see illustration).
23Steering wheel - centralising
22Steering wheel - removal and
refitting
21Rear suspension leaf spring
bush (P100 models) - renewal
20Rear suspension leaf spring
shackle (P100 models) -
removal and refitting
11•14Suspension and steering
19.5 Leaf spring shackle
22.4 Removing the steering wheel retaining
nut22.2 Prise off the steering wheel trim insert
and disconnect the horn electrical lead
19.4 Leaf spring front bracket
23.5 Make alignment marks (arrowed)
between each tie-rod end and its rod when
centralising the steering wheel