alignment LAND ROVER DEFENDER 1999 User Guide

77 - PANEL REPAIRS
CONTENTS
Page
INFORMATION
BODY REPAIRS 1..................................................................................................
ELECTRONIC CONTROL UNITS (ECU’s) 3..........................................................
BODY DIMENSIONS
CHASSIS AND BODY 1..........................................................................................
CHASSIS FRAME ALIGNMENT 2..........................................................................
GAP AND PROFILE INFORMATION 9...................................................................
SEALING AND CORROSION PROTECTION
APPROVED MATERIALS 1....................................................................................
APPLICATION EQUIPMENT 4...............................................................................
CORROSION PROTECTION 8...............................................................................
CAVITY WAX 12.....................................................................................................
SEALANTS AND ADHESIVES 17..........................................................................
WATER LEAKS 28..................................................................................................
PANELS
SERVICEABLE PANELS 1.....................................................................................
PROCEDURES
GENERAL WELDING PRECAUTIONS 1...............................................................
PANEL REPLACEMENT PROCEDURE 2..............................................................
REPAIR PROCEDURES 6......................................................................................
REPAIR
WING LOWER FRONT 1........................................................................................
HEADLAMP MOUNTING PANEL 1........................................................................
WING UPPER - LH 2..............................................................................................
WING UPPER - RH 2..............................................................................................
WHEEL ARCH - FRONT 3......................................................................................
BULKHEAD ASSEMBLY 3......................................................................................
SCREEN APERTURE 4..........................................................................................
SILL - FRONT 5......................................................................................................
’B/C’&’D’POST 5..................................................................................................
CORNER CAPPING 6.............................................................................................
BODY SIDE CAPPING 6.........................................................................................
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PANEL REPAIRS
1
INFORMATION BODY REPAIRS
Body shells are of riveted, bolted and welded
construction and are bolted to the chassis frame.
It is essential that design dimensions and strength are
restored in accident rectification. It is important that
neither structural weakness nor excessive local
stiffness are introduced into the vehicle during body or
chassis repair.
Repairs usually involve a combination of operations
ranging from straightening procedures to renewal of
either individual panels or panel assemblies. The
repairer will determine the repair method and this
decision will take into account a balance of economics
between labour and material costs and the availability
of repair facilities in both equipment and skills. It may
also involve considerations of vehicles down-time,
replacement vehicle availability and repair turn-around
time.
It is expected that a repairer will select the best and
most economic repair method possible, making use of
the facilities available. The instructions given are
intended to assist a skilled body repairer by expanding
approved procedures for panel replacement with the
objective of restoring the vehicle to a safe running
condition and effecting a repair which is visually
acceptable and which, even to the experienced eye,
does not advertise the fact that it has been damaged.
This does not necessarily mean that the repaired
vehicle will be identical in all respects with original
factory build. Repair facilities cannot always duplicate
methods of construction used during production.
The panel repairs shown in this section are all based
on a 110 Station Wagon. Therefore all illustrations
and text relate only to this model. Although certain
areas of the vehicle, such as the front end, are
relevant to all models.
Operations covered in this Manual do not include
reference to testing the vehicle after repair. It is
essential that work is inspected and suspension
geometry checked after completion and if necessary a
road test of the vehicle is carried out, particularly
where safety related items are concerned.Where major units have been disconnected or
removed, it is necessary to ensure that fluid levels are
checked and topped up when necessary. It is also
necessary to ensure that the repaired vehicle is in a
roadworthy condition in respect of tyre pressures,
lights, washer fluid etc.
Body repairs often involve the removal of mechanical
and electrical units as well as associated wiring.
Where this is necessary use the relevant section in
this manual.
Taking into consideration the differences in body
styles, steering and suspension systems as well as
engine and suspension layouts, the location of the
following components as applicable to a particular
vehicle is critical:
Front suspension upper damper
mountings.
Front suspension or sub frame mountings.
Engine mountings on RH and LH chassis
longitudinals.
Rear suspension upper damper mountings.
Rear suspension mountings or lower
pivots.
Steering rack mountings.
Additional points which can be used to check
alignment and assembly are:
Inner holes in crossmember - side - main
floor.
Holes in valance front assembly.
Body to chassis mounting holes.
Holes in rear floor.
Holes in rear lower panels or extension
rear floor.
Fuel tank mountings.
Apertures for windscreen, backlight, bonnet and doors
can be checked by offering up an undamaged
component as a gauge and also by measuring known
dimensions.See BODY DIMENSIONS section.
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77PANEL REPAIRS
2
INFORMATION Straightening
Whenever possible, chassis structural members
should be cold straightened under tension. Do not
attempt to straighten with a single pull, but rework the
damaged area using a series of pulls, releasing
tension between each stage and using the opportunity
to check alignment.
Body jig
Unless damage is limited to cosmetic panels, all repair
work to body members must be carried out on a body
jig, to ensure that impact damage has not spread into
more remote parts of the body structure. Mounting on
a jig will also ensure that the straightening and panel
replacement procedures do not cause further
distortion. If original dimensions cannot be
satisfactorily restored by these methods, damaged
structural members should be replaced. Damaged
areas should be cut away using a high speed saw,
NOT an oxy-acetylene torch.
As a rule, body dimensions are symmetrical about the
centre line. A good initial check for distortion is
therefore to measure diagonally and to investigate
apparent differences in dimensions.Inspection
Every accident produces individual differences in
damage. Each repair is influenced by the extent of the
damage and by the facilities and equipment available
for its rectification.
Most accident damage can be visually inspected and
the approximate extent of the damage assessed.
Sometimes deformation will extend beyond the area
of direct damage, and the severity of this must be
accurately established so that steps may be taken to
restore critical body components to their original
dimensions.
An initial check of critical dimensions can be carried
out by means of drop checks or (preferably) trammels.
Gauges are available which will check accurately for
body twist. Where repairs necessitate renewal of a
critical body component it is recommended that a
body jig is used.
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77PANEL REPAIRS
2
BODY DIMENSIONS CHASSIS FRAME ALIGNMENT
With the vehicle assembled, a check for chassis
squareness can be made as follows:
1.Place the vehicle on a level floor.
2.Mark measuring points at approximately the
locations shown in LR4412M ensuring that the
marks are exactly opposite on each side of the
chassis frame.3.Hold a plumb line against each of the measuring
points in turn and mark the floor directly beneath
the plumb-bob.
4.Move the vehicle and measure diagonally
between the marks made on the floor, if the
chassis is square the diagonals between the
related measuring points should be within 9,50
mm.
5.Chassis frame dimensional checks can be
made, with the vehicle upper structure removed,
referring to the applicable illustration and
associated key.
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77PANEL REPAIRS
4
BODY DIMENSIONS LAND ROVER 90
CHASSIS ALIGNMENT DIMENSIONS
A - Front Datum
B - Chassis Datum
C - Front axle centre line
D - Rear axle centre line
1.239,0 - 236,5 mm
2.82,0 - 79,5 mm
3.633 mm
4.2420,6 - 2418,6 mm
5.2306,4 - 2305,4 mm
6.981,2 - 978,7 mm
7.182,7 mm
8.41,5 - 37,0 mm
9.252 - 250 mm10.110 mm
11.2360mm - Wheelbase
12.636 - 634 mm
13.488 - 482 mm
14.488 - 482 mm
15.3431,1 - 3426,1 mm
16.588,3 - 586,3 mm
17.2313,8 - 2311,8 mm
18.590,5 mm
19.295,25 mm
20.519,30 - 517,30 mm
21.259,80 - 258,50 mm
22.1242,6 - 1240,6 mm
23.642,5 - 639,5 mm24.750,9 mm
25.439,5 - 436,5 mm
26.136,5 mm
27.299,5 - 295,5 mm
28.103 - 100 mm
29.131,5 - 126,5 mm
30.705,5 - 704,5 mm
31.705,5 - 704,5 mm
32.42,2 - 40,2 mm
33.491 - 486 mm
34.594,2 - 593,4 mm
35.283,0 - 282,2 mm
36.32,25 - 31,25 mm
37.397 - 395 mm
Engine mounting dimensions - section V-V
Section V-V, Tdi and Td5 engine mounting bracket dimensions. The dimensions are applicable to all derivatives.
Tdidimensions:
A = 276.5
B = 553
C = 127.9
D = 317.4
E = 4 degreesTd5dimensions:
A = 273.2
B = 546.5
C = 187.8
D = 374.3
E = 4 degrees
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77PANEL REPAIRS
6
BODY DIMENSIONS LAND ROVER 110
CHASSIS ALIGNMENT DIMENSIONS
A - Front Datum
B - Chassis Datum
C - Front axle centre line
D - Rear axle centre line
1.4148 - 4143 mm
2.4009,5 - 4005 mm
3.978,7 - 981,2 mm
4.22 - 20 mm
5.252 - 250 mm
6.239 - 236,5 mm
7.3023,3 - 3022,3 mm
8.3030,7 - 3028,7 mm
9.155 - 153 mm
10.871,2 - 869,2 mm
11.2794 mm - Wheelbase
12.488 - 482 mm13.488 - 482 mm
14.82 - 79,5 mm
15.750,9 mm
16.750,9 mm
17.440,5 - 435,5 mm
18.440,5 - 435,5 mm
19.299,5 - 295,5 mm
20.500 - 495 mm
21.500 - 495 mm
22.594,2 - 593,4 mm
23.594,2 - 593,4 mm
24.283 - 282,2 mm
25.283 - 282,2 mm
26.1970 - 1968 mm
27.642,9 - 639,5 mm
28.750,9 mm29.290,5 mm
30.295,5 mm
31.299,5 - 295,5 mm
32.103 - 100 mm
33.1177,5 - 1175,5 mm
34.1692,5 - 1689,5 mm
35.2610 - 2606 mm
36.2040,5 - 2037,5 mm
37.1912,5 - 1909,5 mm
38.1359 - 1357 mm
39.1573 - 1571 mm
40.270 - 268 mm
41.665,5 - 663,5 mm
42.440 - 438 mm
43.32,25 - 31,25 mm
Section V-V is through the engine mountings. Dimensional information for the mountings can be found in Land
Rover’90’engine mounting dimensions.
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77PANEL REPAIRS
8
BODY DIMENSIONS LAND ROVER 130
CHASSIS ALIGNMENT DIMENSIONS
A - Front Datum
B - Chassis Datum
C - Front axle centre line
D - Rear axle centre line
E - Chassis Datum, section A - A
1.633,0 mm reference only
2.3569,3 - 3567,3 mm
3.2421,8 - 2419,8 mm
4.2317,5 - 2314,5 mm
5.2188,3 - 2185,3 mm
6.2119,5 - 2117,3 mm7.1990 - 1988 mm
8.1970 - 1968 mm
9.2401,8 - 2399,8 mm
10.110,0 mm reference
11.149,7 - 146,7 mm reference dimension
12.3225.8 mm - Wheelbase
NOTE: The above dimensions are for the Land Rover 130 chassis frame. For additional
measurements, refer to the Land Rover 110 chassis frame drawing and aligment dimensions.
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77PANEL REPAIRS
28
SEALING AND CORROSION PROTECTION WATER LEAKS
Sealing charts in this section show those areas of the
bodyshell most likely to be affected by accident
damage and water leaks, and which could therefore
require re-treatment in repair. They do not show those
joint areas which only apply to factory assembly
operations and which are unlikely to be disturbed in
service (e.g. centre tunnel), or where the damage
would be so severe that the entire bodyshell would
normally be written off.
When water leakage occurs, always adopt a logical
approach to the problem using a combination of skill,
experience and intuition. Do not attempt to reach a
conclusion based only on visual evidence, such as
assuming that a leak emanates from the windscreen
because the footwell is wet. It will often be found that
the source of the leak is elsewhere. The correct
procedure will increase the chance of locating a leak,
however obscure it may seem.
Tools and Equipment
The following tools and equipment are recommended
for detection and rectification of water leaks:
1. Garden sprayer (hand-operated).
2. Wet/dry vacuum cleaner.
3. Dry absorbent cloths.
4. Battery torch.
5. Small mirror.
6. Weatherstrip locating tool.
7. Trim panel remover.
8. Small wooden or plastic wedges.
9. Dry compressed air supply.
10. Hot air blower.
11. Sealer applicators.
12. Ultrasonic leak detector.
During leak detection, the vehicle should be
considered in three basic sections:
The front interior space,
The rear passenger space (where
applicable), and
The rear loadspace or boot.Testing
From the information supplied by the customer it
should be possible for the bodyshop operator to locate
the starting point from which the leak may be
detected. After the area of the leak has been
identified, find the actual point of entry into the vehicle.
A simple and effective means initially is an ordinary
garden spray with provision for pressure and jet
adjustment. This will allow water to be directed in a jet
or turned into a fine spray. Use a mirror and a
battery-powered torch (NOT a mains voltage
inspection lamp) to see into dark corners.
The sequence of testing is particularly important. Start
at the lowest point and work slowly upwards, to avoid
testing in one area while masking the leak in another.
For example, if testing started at the level of the
windscreen, any water cascading into the plenum
chamber could leak through a bulkhead grommet and
into the footwells. Even at this point it could still be
wrongly assumed that the windscreen seal was at
fault.
Another important part of identifying a water leak is by
visual examination of door aperture seals, grommets
and weatherstrips for damage, deterioration or
misalignment, together with the fit of the door itself
against the seals.
Sealing
When the point of the leak has been detected,
proceed to rectify it using the following procedure:
1. Renew all door aperture seals and weatherstrips
which have suffered damage, misalignment or
deterioration.
2. Check all body seals to ensure that they are
correctly located on their mounting flanges/faces
using a locating tool if necessary.
3. Dry out body seams to be treated using
compressed air and/or a hot air blower as
necessary.
4. Apply sealant on the outside of the joint
wherever possible to ensure the exclusion of
water.
5. When rectifying leaks between a screen glass
and its weatherstrip (or in the case of direct
glazing, between the glass and bodywork), avoid
removing the glass if possible. Apply the
approved material either at the glass to
weatherstrip or glass to body.
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ELECTRICAL
5
REPAIR HEADLAMP
Service repair no - 86.40.49
Remove
1.Remove 4 screws and release side and indicator
lamps from wing.
2.Disconnect multiplugs and remove side and
indicator lamps.
3.Remove 2 screws and remove headlamp
finisher.
4.Remove 4 screws securing headlamp to wing,
disconnect multiplugs and remove headlamp.
5.Remove headlamp seal.Refit
6.Fit headlamp seal.
7.Position headlamp, connect multiplugs, fit and
tighten headlamp screws.
8.Fit headlamp finisher and secure with screws.
9.Position side and indicator lamps, connect
multiplugs and secure with screws.
10.Reset headlamp alignment.See Adjustment.
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