spare wheel FORD SIERRA 1988 2.G Suspension And Steering Workshop Manual

4Extract the split pin and unscrew the
castellated nut (see illustration).
5Using a balljoint separator tool, release the
tie-rod end from the hub carrier (see
illustration).
6Unscrew the tie-rod end from the tie-rod,
noting the number of turns necessary to
remove it.
Refitting
7Refitting is a reversal of removal, bearing in
mind the following points.
8Screw the tie-rod end onto the tie-rod the
number of turns noted during removal.
9Tighten the nuts to the specified torque,
and fit a new split pin to the castellated nut.
10On P100 models, align the previously
made marks on the roadwheel and wheel
stud.
11On completion, check and if necessary
adjust the front wheel alignment.
1Front wheel alignment is defined by
camber, castor steering axis inclination and
toe setting. The first three factors are
determined in production; only toe can be
adjusted in service. Incorrect toe will cause
rapid tyre wear.
2Toe is defined as the amount by which the
distance between the front wheels, measured
at hub height, differs from the front edges tothe rear edges. If the distance between the
front edges is less than that at the rear, the
wheels are said to toe-in; the opposite case is
known as toe-out.
3To measure toe, it will be necessary to
obtain or make a tracking gauge. These are
available in motor accessory shops, or one
can be made from a length of rigid pipe or bar
with some kind of threaded adjustment facility
at one end. Many tyre specialists will also
check toe free, or for a nominal sum.
4Before measuring toe, check that all
steering and suspension components are
undamaged and that tyre pressures are
correct. The vehicle must be at approximately
kerb weight, with the spare wheel and jack in
their normal positions and any abnormal loads
removed.
5Park the vehicle on level ground and
bounce it a few times to settle the suspension.
6Use the tracking gauge to measure the
distance between the inside faces of the front
wheel rims, at hub height, at the rear of the
front wheels. Record this distance; call it
measurement “Y” (see illustration).7Push the vehicle forwards or backwards so
that the wheels rotate exactly 180º (half a
turn). Measure the distance between the front
wheel rims again, this time at the front of the
wheels. Record this distance; call it
measurement “X”.
8Subtract measurement “X” from
measurement “Y”. If the answer is positive it is
the amount of toe-in; if negative it is the
amount of toe-out. Permissible values are
given in the Specifications.
9If adjustment is necessary loosen the
tie-rod end locknuts and the outer bellows
clips, then rotate each tie-rod by equal
amounts until the setting is correct. Hold the
tie-rod ends in their horizontal position with a
spanner while making the adjustment.
10Tighten the locknuts and outer bellows
clips.
11Provided the tie-rods have been adjusted
by equal amounts the steering wheel should
be central when moving straight-ahead. The
amount of visible thread on each tie-rod
should also be equal. If necessary refer to
Section 23.
34Front wheel alignment
- checking and adjusting
Suspension and steering 11•19
11
34.6 Front wheel alignment
A CamberB CastorC Toe setting
For X and Y, see text
33.5 Using a balljoint separator tool to
release the tie-rod end from the hub
carrier
33.4 Extracting the split pin from the tie-
rod balljoint castellated nut