Range Rover Classic. Manual — part 135
WHEELS AND TYRES
1
DESCRIPTION AND OPERATION
TYPES OF WHEEL RIMS AND TYRES
Description
Dependent on specification, the vehicle is equipped
with alloy or pressed steel wheel rims, both using
tubeless radial ply tyres.
Tyre codes
The writing, codes and numbers moulded into the tyre
wall vary between tyre manufacturers, however most
tyres are marked with the information shown in the
illustrated example.
NOTE: The illustration is an example of the
type of markings moulded into tyres and is
for guidance only. For specific tyre
specifications.
See GENERAL SPECIFICATION
DATA, Information, Wheels and Tyres
1. Type of tyre construction - Radial Ply
2. Load index - 104
3. Speed symbol - S or T
4. USA Tyre quality grading - Tread wear 160
Traction A temperature B
5. Tread wear indicators moulded into tread pattern
are located at intervals around the tyre and
marked by a code - E66 103S6
6. Tyres with ’Mud Snow’ type tread pattern are
marked - M&S
7. Tyre reinforcing mark - Reinforced
8. USA Load and pressure secification -
(900Kg(1984LBS) at 340KA (50PSI) MACS
PRESS
9. Tyre size - 205 16 ot 235/70 R16
10. Type of tyre - TUBELESS
11. Country of manufacture - MADE IN GREAT
BRITAIN
12. USA Compliance symbol and identification -
DOT AB7C DOFF 267
13. European type approval identification - E11
01234
14. Tyre construction - SIDE WALL 2 PLIES
RAYON. TREAD 2 RAYON 2 STEEL
15. Manufacturer’s brand name/type - TRACTION
PLUS mzx M
WHEELS AND TYRES
1
FAULT DIAGNOSIS
TYRE WEAR CHART
FAULT
CAUSE
REMEDY
Rapid wear at
Tyres under-inflated
Inflate to correct pressure
shoulders
Worn suspension components
Replace worn components
i.e. ball joints, panhard
rod bushes,steering damper
Excessive cornering speeds
Rapid wear at
centre
Tyres over-inflated
Inflate to correct pressure
of tread
Wear at one
shoulder
Track out of adjustment
Adjust track to correct figure
Bent panhard rod
Check and replace worn or damaged
components
Bald spots or tyre
Wheel out of balance
Balance wheel and tyre
cupping
assembly
Excessive radial runout
Check runout and replace tyre
if necessary
Shock absorber worn
Replace shock
Excessive braking
Tyre scalloped
Track out of adjustment
Adjust toe to correct figure
Worn suspension components
Replace as necessary
Excessive cornering speeds
CAUTION: This diagnosis chart is for general guidance only and does not necessarily include
every cause of abnormal tyre wear.
74
WHEELS AND TYRES
2
FAULT DIAGNOSIS
FAULT - SYMPTOMS
Vibration through steering wheel
1. Check tyre pressures.
See Repair, Tyre
Pressures
2. Check condition of tyres.
See Tyre Wear Chart
3. Check front wheel alignment.
See STEERING,
Adjustment, Front Wheel Alignment
4. Check wheel balance.
See Repair, Wheel
Balancing
NOTE: In the event that any apparent
vibration is not eliminated at this stage.
See PROPELLER SHAFTS, Fault
diagnosis, Vibration Harshness
NOTE: In the event that any apparent
vibration is not eliminated at this stage, go
to steering Fault Diagnosis, Fault -
Symptom (Steering vibration, road wheel
shimmy/wobble).
See STEERING, Fault diagnosis,
Steering Faults
NOTE: Radial ply tyres have a flexible
sidewall, which produces a sidewall bulge
making the tyre appear under-inflated.
This is a normal condition for radial ply tyres. Do
not attempt to reduce this bulge by over-inflating
the tyre.
1. Correct inflation.
2. Under-inflation.
3. Over-inflation.
4. Tread contact with road.
WHEELS AND TYRES
1
REPAIR
GENERAL INFORMATION
WARNING: This is a multi- purpose vehicle
with wheels and tyres designed for both
on and off road usage. Only use wheels
and tyres specified for use on the vehicle.
The vehicle is equipped with tubeless ’S’,’T’ or ’H’
rated radial ply tyres as standard equipment. The
tyres are of European metric size and must not be
confused with the "P" size metric tyres available in
North America.
Vehicle wheel sets, including spare wheel, must be
fitted with the same make and type of tyre to the
correct specification and tread pattern. Under no
circumstances must cross-ply or bias-belted tyres be
used.
For tyre specification and pressures.
See GENERAL
SPECIFICATION DATA, Information, Wheels and
Tyres
Alloy Wheels
Tubeless tyres are mounted on 7.0 inch wide by 16
inch diameter cast aluminium alloy wheels.The
surface has a paint finish covered with a clear
polyurethane lacquer. Care must be taken when
handling the wheel to avoid scratching or chipping the
finish.
The alloy wheel rim is of the asymmetric hump
type incorporating a safety hump to improve
location of the tyre bead in its seat. If difficulty is
experienced in fitting tyres to this type of rim.
See
Tyre Fitting
WARNING: Do not fit an inner tube to an
alloy wheel.
Steel wheels
Tubeless tyres are mounted on 7.0 inch wide by 16
inch diameter steel wheels.
TYRE INSPECTION
Inspect tyres at weekly intervals to obtain maximum
tyre life and performance and to ensure compliance
with legal requirements. Check for signs of incorrect
inflation and uneven wear, which may indicate a need
for balancing or front wheel alignment.
See Fault
diagnosis, Tyre Wear Chart if the tyres have
abnormal or uneven wear patterns.
Check tyres at least weekly for cuts, abrasions, bulges
and for objects embedded in the tread. More frequent
inspections are recommended when the vehicle is
regularly used in off road conditions.
To assist tyre inspection, tread wear indicators are
moulded into the bottom of the tread grooves, as
shown in the illustration below.
When the tread has worn to a remaining depth of 1.6
mm the indicators appear at the surface as bars which
connect the tread pattern across the width of the tread
as shown in the illustration below.
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