abs JAGUAR X308 1998 2.G Workshop Manual

ZINC COATED PANELS
Description
Approximately 70% of the 'body in white' (BIW) mass is made up of zinc coated panels.
• NOTE: To maintain the protective qualities of the zinc trea tment, repairs to any damaged coated area must be made as
soon as possible after the damage has occurred.
All exterior skin panels, with the exceptio n of the roof, are double side zinc plated and this coating (nominally 7,5 microns)
provides two way corrosion protection. Should the outer layer of paint become chipped with the zinc coating remain intact,
the zinc will oxidize on contact with air and being impermeable, this coat of oxidation will prevent corrosion damage of the
base metal. If the outer layer of paint and the zinc coating become damaged, the zinc rather than the base metal will react
with the air and 'sacrifice' itself to corrosion as a 'sacrificial anode'.
Welding Preparation
Contamination of the weld with resultant reduction in joint st rength increase and increased electrode tip dressing frequency
will occur zinc coating is not removed. In exceptional cases where the zinc coating must remain intact, the tip pressure and
welding current should be increased by 10 to 20%.
Where 'resistance spot welding' is employed, the zinc coatin g should be lightly abraded away on the mating surfaces and
those in contact with the electrode tips. Do not remove more zinc coating than is absolutely necessary.
Before welding, a weld-through primer or inter-weld sealer should be applied, as detailed in the Body Sealing and
Preservation manual.
Where MIG welding is used as an alternativ e to resistance spot welding for plug and butt welds or due to limited access, the
problems caused by the presence of zinc coating are much the same, with the added complication of increased weld spatter
and nozzle contamination.
Body Fillers
Conventional polyester fillers do not adhere satisfactorily to zinc plated panels, it is ther efore important that only those
products specifically designed for this application are used and the manufacturer's recommendations are followed.
Refinishing
Use only those products approved by Jaguar Cars Ltd and exercise special care on zinc coated panels.
As replacement panels ar e supplied ready primed, the only bare metal that needs to be exposed are those areas prepared
for welding etc, as decribed in 'Welding Preparation. Where any part of a panel is dressed back to the bare surface, it should
be treated with a zinc rich primer compatible with the paint application system.
GENERAL PREPARATION OF PANELS
Removal of Panels and Welds
• NOTE: Where other components must be removed for access, refer to the relevant manual section for guidance. This is
particularly important where steerin g, braking, suspension, electrical and safety systems are affected.
Expose all resistance spot welds, using a ro tary wire brush fitted to an air drill or a hand held wire brush on those that are
not clearly visible (1).
WARNING: DO NOT BURN UNDERSEAL OFF. USE A 'HOT KNIFE' OR SUITABLE SOLVENT.
Cut out spot welds using a Zipcutter or Roto-Bor (2). At this point it may be necessary to cut out the bulk of the panel using

illustration and is positioned along the edge of the rubber.
• NOTE: The depth of the glass and thus the thickness of the ad hesive, is controlled by the screen rubber contacting the
body flange.
Adhesive Application

Key to Adhesive Application Drawing
Adhesive Curing
The specified adhesive cures by exposure to moisture (not by heat). Cure times may vary considerably dependent upon
ambient humidity levels. Initial 'chill off' will occur within 1 to 4 minutes ( dependent upon the application temperature and
rate of cooling), after which the screen must not be moved.
BUMPER REPAIR\RENEWAL
Bumper Description
Each bumper comprises a beam mounte d to the body via two strut assemblies and a moulded polypropylene cover
incorporating side armatures and chrome plated plastic upper trims. The front bumper cover which is moulded to form a
lower air intake for the cooling pack, also incorporates twin fog lamps, brake cooling ducts and side marker lamps or
reflectors (dependent upon market). A plastic undertray secured to the lower edge of the front bumper and the BIW
improves airflow and minimises the ingres s of road grime in that area. Standard bumpers have glass mat thermoplastic
(GMT) beams mounted on GMT struts. For certain markets, aluminium bumper beams are installed on menasco energy
absorbing struts.
Bumper Cover Repair
1Fitted condition
2Bead application

32. From engine compartment, remove crossbeam front LH
securing bolts.

33. Remove crossbeam to engine Hydramount securing bolts.
Remove bolt securing cros smember to Hydramount.
Fully withdraw bolt into crossmember insert.
Repeat procedure to remove and withdraw bolt on
opposite side

34. CAUTION: To prevent damage to ball joints, secure
each hub assembly to suspensi on turret using strong wire.
Remove lower nut and bolt from front shock absorber.
Repeat procedure to remove bo lt from opposite side shock
absorber.
35. Remove crossbeam rear securing bolts.
Remove bolt from crossbeam LH rear mounting.
Repeat procedure to remove bolt from crossbeam RH rear
mounting.

17. From engine compartment, install crossbeam front LH bolts
and tighten to 22-28Nm..

18. Install power steering fluid reservoir.
Position reservoir on mounting bracket.
Install reservoir securi ng nuts and bolts.

19. From engine compartment, tighten crossbeam front RH bolts
to 22-28Nm.
20. Install shock absorber on lower wishbone.
Lift lower wishbone to align shock absorber lower
mounting.
Install bolt and nut and ti ghten nut to 43-57Nm.

Repeat procedure to install opposite side shock absorber.

21. Install lower steering column on pinion shaft.
Move column downwards to engage coupling splines on
pinion shaft.
1. Install nut and bolt and tighten to 22-28Nm.
22. Lower and withdraw jack from crossbeam.

23. Release engine from support tool.
1. Slacken hook adjustment nuts until weight of engine is released.
2. Remove hooks from engine front lifting eyes.
3. Remove special tool 303- 021 from fender channel.

24. Install crossbeam to engine Hydramount securing bolts.
Install bolt securing Hydr amount to crossmember and
tighten to 22-28Nm.
Repeat procedure to install crossmember opposite side
securing bolt.
25. Position and connect harnes s to steering transducer.
RHD vehicles. Position steeri ng harness behind return
pipe.
Connect harness to transducer.

21. Remove crossbeam to engi ne Hydramount bolts.
Remove bolt securing crossbeam to Hydramount.
Fully withdraw bolt into crossbeam insert.
Repeat procedure to remove and withdraw bolt on
opposite side

22. Remove lower nut and bolt from front shock absorber.
Repeat procedure to remove bo lt from opposite side shock
absorber.

23. Slacken but do not remove crossbeam rear bolt and nuts.
Slacken crossbeam LH rear mounting bolt and nut.
Repeat procedure to slacken crossbeam RH rear mounting
nut.

24. Release lower steering column from pinion shaft.
1. Remove lower steering column nut and bolt.
Move column upwards to release it from pinion shaft.
25. Disconnect steering rack transducer harness front connector.
Release harness connector from body retaining clip.
Disconnect connector.

7. From engine compartment, tighten crossbeam front RH bolts to 22-28Nm.

8. Install lower steering column on pinion shaft.
Move column downwards to engage coupling splines on
pinion shaft.
1. Install nut and bolt and tighten to 22-28Nm.

9. Install shock absorber on lower wishbone.
Lift lower wishbone to align shock absorber lower
mounting.
Install bolt and nut and ti ghten nut to 43-57Nm.
Repeat procedure to install opposite side shock absorber.
10. Release engine from support tool.
1. Slacken hook adjustment nuts until weight of engine is released.
2. Remove hooks from engine front lifting eyes.

21. Remove front road wheels. Refer to Section 100-02.

22. Remove crossbeam to engine Hydramount securing bolts.
Remove bolt securing crossbeam to Hydramount.
Fully withdraw bolt into crossbeam insert.
Repeat procedure to remove and withdraw bolt on
opposite side

23. Remove lower nut and bolt from front shock absorber.
Repeat procedure to remove bo lt from opposite side shock
absorber.

24. Slacken but do not remove crossbeam rear nuts.
Slacken crossbeam LH rear mounting nut.
Repeat procedure to slacken crossbeam RH rear mounting
nut.

25. Release lower steering column from pinion shaft.
1. Remove lower steering column nut and bolt.
Move column upwards to release it from pinion shaft.
26. Disconnect steering rack transducer harness front connector.
Release harness connector from body retaining clip.
Disconnect connector.

7. From engine compartment, tighten crossbeam front RH bolts to 22-28Nm.

8. Install lower steering column on pinion shaft.
Move column downwards to engage coupling splines on
pinion shaft.
1. Install nut and bolt and tighten to 22-28Nm.

9. Install shock absorber on lower wishbone.
Lift lower wishbone to align shock absorber lower
mounting.
Install bolt and nut and ti ghten nut to 43-57Nm.
Repeat procedure to install opposite side shock absorber.
10. Release engine from support tool.
1. Slacken hook adjustment nuts until weight of engine is released.
2. Remove hooks from engine front lifting eyes.

opposite side

34. CAUTION: To prevent damage to ball joints, secure
each hub assembly to suspensi on turret using strong wire.
Remove lower securing nut and bolt from front shock absorber.
Repeat procedure to remove securing bolt from opposite
side shock absorber.

35. Remove crossbeam rear securing bolts.
Remove securing bolt from crossbeam LH rear mounting.
Repeat procedure to remove securing bolt from crossbeam RH rear mounting.
36. Ensure that steering transducer harness is clear of return pipe
and LH side body.
37. Lower and traverse front suspension assembly clear of
vehicle.
38. With assistance, lift front suspension as sembly onto bench.

39. Remove nut securing tie rod oute r ball joint to steering arm.
Repeat procedure to opposite side tie rod ball joint.
40. Release tie rod ball joint from steering arm.