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Torque wrench settings (continued)
Rear suspension
Driveshaft stub axle nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Final drive mounting to floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Final drive mounting to rear cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guide plate-to-floor bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guide plate insulator bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lower arm to crossmember . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake anchor plate to lower arm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-roll bar bracket bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shock absorber mountings:
Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear hub bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels
Wheel nuts (steel or alloy wheels) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 General information
The steering gear is of rack-and-pinion type.
Power assistance is standard on V6 models
and optional on others. The power-assisted
steering gear has a "variable ratio" effect
which increases the steering ratio about the
straight-ahead position: this provides quick
lock-to-lock action without the penalty of
over-responsiveness in open road driving.
The steering wheel is adjustable both up-
and-down and fore-and-aft. Both steering
column and shaft are designed to collapse
under impact. The steering shaft is connected
to the pinion by an intermediate shaft, which
has a universal joint at its upper end and a
flexible coupling at the lower end.
Front suspension is independent, of the
MacPherson strut type, with coil springs and
concentric telescopic shock absorbers. The
struts are attached to the tops of the stub axle
carriers, which are located at their lower ends
by balljoints incorporated in the lower
suspension arms. The lower suspension arms
pivot at their inner ends, where they are
attached to a central crossmember. The anti-
roll bar is attached to the rear of the arms and
serves to control fore-and-aft movement as
well as reducing roll.
Suspension geometry has been designed to
give good steering "feel", resistance to pulling
caused by uneven braking effort or tyre
deflation, and (in the case of manual steering)
acceptably low steering wheel effort at parking
speeds. Only toe is adjustable in service.
The rear suspension is also independent. It
is of the semi-trailing arm type, with coil
springs and separate telescopic shock
absorbers. An optionally-available ride height
control system keeps the rear suspension
height constant, regardless of vehicle load.
Both front and rear wheel bearings are of a
special taper-roller type and require no
periodic adjustment in service.
Nm
250 to 290
20 to 25
40 to 50
41 to 51
69 to 88
80 to 95
52 to 64
20 to 25
73 to 97
68 to 92
80 to 100
70 to 100
2 Power steering fluid - level
check and bleeding
1 Refer to Chapter 1, Section 35, to check the
power steering fluid level.
2 If the fluid level falls so low that air enters
the pump, or after component renewal, the
system must be bled as follows.
3 Remove the reservoir filler cap. Top-up with
clean fluid to the appropriate "cold" level. It is
important that the fluid is free of air bubbles,
so do not shake the container when topping-
up, and pour the fluid slowly.
4 Disconnect the negative LT lead from the
ignition coil. Have an assistant crank the
engine on the starter in two second bursts, at
the same time turning the steering wheel from
lock to lock. Keep the reservoir topped up
whilst this is going on.
5 When air bubbles no longer appear in the
fluid, stop the cranking. Reconnect the coil
negative lead and run the engine for a few
seconds, then stop it and check the level
again. Refit the filler cap.
6 Run the vehicle for a few miles to warm up
the fluid and expel any remaining air, then stop
the engine and make a final fluid level check.
3 Steering gear - removal and
refitting
Manual steering
1 Position the steering in the straight-ahead
position, then remove the ignition key so that
the steering is locked.
2 Slacken the front wheel nuts. Raise and
support the front of the vehicle and remove
the front wheels.
3 Remove the pinch-bolt and nut which
secure the intermediate shaft flexible coupling
to the pinion shaft (see illustration).
4 Slacken the track rod end locknuts by half a
turn each (see illustration).
5 Remove the split pin from the track rod
balljoint nuts. Unscrew the nuts, break the
balljoint tapers using a separator tool and
Steering and suspension 11•3
lbf ft
180 to 210
15 to 18
30 to 37
30 to 38
51 to 65
59 to 70
38 to 47
15 to 18
54 to 72
50 to 68
59 to 74
52 to 74
disengage the track rod ends from the
steering arms.
6 Remove the two bolts which secure the
steering gear to the crossmember. Lift out the
steering gear.
7 Mark the positions of the track rod ends on
the track rods, using paint or sticky tape, so
that they can be refitted in approximately the
same positions. Unscrew the track rod ends
and locknuts.
8 Commence refitting by screwing on the
locknuts and track rod ends, observing the
previously
made
position
applicable.
9 Bring the rack to the straight-ahead
position. Do this by counting the number of
turns of the pinion needed to go from lock to
lock, then applying half that number of turns
from full lock on one side.
10 Offer the steering gear to the vehicle,
engaging the flexible coupling and loosely
fitting the securing bolts. Note that the master
spline on the pinion shaft mates with the
corresponding groove in the flexible coupling.
11 Tighten
the
two
steering
crossmember bolts to the specified Stage 1
torque. Slacken the bolts and retighten to the
Stage 2 torque. Finally tighten the bolts
through the angle specified for Stage 3.
12 Make sure that the flexible coupling and
pinion shaft are properly engaged, then fit the
pinch-bolt and nut. Tighten the pinch-bolt to
the specified torque.
3.3 Master spline and groove on pinion
shaft and coupling
marks
when
gear-to-
11
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