Suspension Systems
1 1.4.8 Diagnostic Procedure
Condition
Hard steering
Shimmy
I----
Bump steer (unequal
side-to-side)
Sawtooth pattern or
t excessive tire wear
Uneven tire wear
(outer or inner
shoulder)
Fronvrear
suspension noises
Possible Cause
Side-to-side difference in caster.
Tire pressure Steering gear or linkage worn or defective.
Tire
conicity
Power steering gear or linkage worn,
damaged, or incorrect adjusted.
Wear of front suspension
lower/upper
wishbone ball joints.
Unequal tire pressure.
Brake system
fault(s)
Wheel/tire imbalance or runout.
Damaged tires, unbalanced or damaged
wheels.
Incorrect wheel alignment.
Steering system malfunction
Front damper malfunction.
Loose front damper mounting.
Damaged front suspension upper
or lower
ball joints.
Damaged or worn sub
-frame to body
mounting. Damaged or worn stabilizer bar insulators.
Damaged or worn stabilizer bar link.
Damaaed or worn wheel bearina.
Rear suspension damage.
Worn steering gear mounting bracket
housing insulators.
Excessive toe
-in (high edges inboard) or
toe-out (high edges outboard).
Incorrect tire pressure.
Excessive toe.
Excessive positive or negative camber.
Loose/missing front dampers and front
damper bolt to front suspension lower
wish bone.
Action
Check the alignment and if incorrect,
adjust the caster
if needed. Inspect
components for wear or damage.
Check for abnormal loading.
Check steering system
Inspect tire for excessive wear.
Check and adjust the tire air pressure.
Note: Excessively worn or uneven tires can
cause
pull/drift.
Check steering system.
Renew ball joints.
Inflate the tires to correct and uniform
pressure.
Check the brakes.
Check wheels and tires.
Check the tires and renew
if necessary.
Balance the wheels
if necessary.
Adjust wheel alignment.
Check steering system.
Renew front damper
if necessary.
Tighten front damper mounting.
-
Renew upper and lower ball joint.
Renew rear suspension bushing.
Renew insulators.
Renew link.
Renew/adjust wheel bearing.
If the caster is uniform, check and compare
the wheelbase at the right and left sides.
If
different, inspect the suspension
components for wear and damage.
Renew bracket housing insulators.
Check and adjust toe
-in.
Correct tire pressure.
Check toe and adjust
if needed.
Check the camber and
if incorrect inspect
the related components for wear or
damage.
Tighten/renew damper bolts.
Inspect wheel hubs.
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Body Systems Body Repair
A4.1 BODY REPAIR
Introduction
This section contains information, specifications and procedures for body repair and rectification of the Jaguar sedan
range (with standard wheelbase).
All repairs, whether structural or cosmetic, must ensure the continuance of the Paint Surface and Corrosion warranty,
where applicable.
Following repair or rectification, the vehicle must be returned to the original manufactured condition with regard to
occupant safety, dimensional accuracy, finish and corrosion protection.
Similarly, repaired vehicles must be fully checked, and where appropriate reset, with regard to steering, suspension,
restraint and
braking systems.
A4.1.1 Health and Safety
(Please Read The
Fol/owing Notes Carethlly)
Where legislation governing working conditions and practises is applicable, you should observe it. Do not forget that
you have a duty, to yourself and those around you, to act in a responsible manner in the workplace.
In the United Kingdom the Health and Safety
at Work Act (1974) places a duty on employers and employees to ensure,
whenever possible, safe working conditions and practices. Wherever a potential hazard is notified to, or identified by
the operator, he must employ the correct safety procedures and equipment.
Should
a personal injury occur as a result of any workshop activity, seek medical help as soon as possible and do not
attempt self-treatment other than by the application of first aid.
With the constant introduction of new materials in the manufacture of vehicles,
it is important that potential risks are
identified and precautions made known.
WARNING: READ AND UNDERSTAND WORKING PRACTICES CLIMATE CONTROL SYSTEMS, SECTION 14, WITH SPECIAL REFERENCE TO
ERY
/ RECYCLE / RECHARGE EQUIPMENT.
WEAR SUITABLE EYE AND SKIN PROTECTION.
OBSERVE ALL APPLICABLE SAFETY REQUIREMENTS.
DO
NOT VENT REFRIGERANT DIRECTLY TO ATMOSPHERE, ALWAYS USE JAGUAR APPROVED RECOV
-
Issue 1 August 1994 1 X300 VSM
Body Systems
A4.2.1.1 Constructional Steel Classification
Material 1 dnnlirdiam I
High strength low alloy (HLSA).
Double sided zinc plated mild steel.
1 Boron steel
1 Mild steel.
A4.2.2 BODY ALIGNMENT
The illustrations on pages 11 - Body Dimensions PLAN, and 13 -Body Dimensions SIDE VIEW, provide specifications
for damage assessment and location of replacement parts.
These dimensions must be strictly applied whether they are used for damage assessment, component location or post
repair verification.
The plan view MASTER datums are nominated on the right
-hand side of the body with the left-hand datums dimen- sioned from them. Therefore, the right-hand datums must be known to be correct before any other cross-ar dimen- sions are checked.
W: The right-hand side is always looking towards the front, from the rear of the vehicle.
All dimensions are derived from a single
(ZERO) datum point for all three axes; X for length, Z for height and V cross- car.
Issue 1 August 1994 9 X300 VSM
A4.2 BODY STRUCTURE
A4.2.1
Introduction
The Jaguar sedan range (with standard wheelbase) has a unit construction monocoque body structure with bolt-on
front fenders and welded rear fenders. The doors feature 'lift-off' hinges and welded dropglass frames.
n@#pn.s..v..
Impact prone areas, ie. seat frame and bumper mount- ings.
Exterior body panels subject to severe conditions such
as stone chipping and weather exposure (excluding
roof panel).
Door intrusion beams
Internal brackets, fillets and strengtheners.
I
A4.6.6.2 Body-side Moulding - Fitfed Condition
A4.6.6 BODY-SIDE MOULDINGS
A4.6.6.1 Introduction
There are two types of moulding fitted to the standard wheelbase sedan.
The lower moulding is ‘self
-locating‘ on the body / door lower feature line and therefore provides a fixed datum for
the location of the upper moulding (wherefitted). Replacement lower mouldings will be supplied in a primed condition
and therefore must be finished in accordance with A4.6.3, this section.
Location Finish Application Fixing method
Polished stainless steel Daimler / VDP Adhesive
tape
Lower Bodv
color All models Adhesive
tape
Upper ~~
J76-la23
1 . Adhesive
tape 2. Moulding, Daimler / VDP. 3. Moulding, All models
Fig.
1
144.6.6.3 Fitting process
. ‘Spirit wipe’ appropriate body panel and where appropriate protect against damage.
. Gently warm body panel and moulding using infa-red lamp or similar.
. Lower moulding - align to body feature and other mouldings if appropriate, and secure into position.
. Upper moulding - align to lower moulding for distance (Fig. 1) and parallelism and other mouldings if appropriate,
and secure into position.
. Apply an even pressure along the moulding to fully secure to the panel.
issue 1 August 1994 41 X300 VSM