Opel Frontera UE. Manual - part 69

WHEEL AND TIRE SYSTEM

3E–11

Wheel

Wheel and Associated Parts

480RX008

Legend

EndOFCallout

Removal

1. Loosen wheel lug nut by approximately 180

°

 (half a 

rotation), then raise the vehicle and remove the 
nuts.

2. Remove wheel and tire.

NOTE:  Never use heat to loosen a tight wheel lug nut.   
The application of heat to the hub can shorten the life of 
the wheel and may cause damage to wheel bearings.

Installation

1. Install wheel and tire.

2. Install wheel lug nut, and lower the vehicle. Tighten 

the wheel lug nuts to the specified torque in 
numerical order.

Torque: 118N·m (12.0kg·m/87 lbft)

CAUTION:  Before installing wheels,  remove any 
build-up of corrosion on the wheel mounting 
surface and brake disc mounting surface by 
scraping and wire brushing.   Installing wheels 
without good metal-to-metal contact at mounting 
surfaces can cause wheel nuts to loosen,  which 
can later allow a wheel to come off while the vehicle 
is moving.

NOTE:  Valve caps should be on the valve stems to 
keep dust and water out.

480RS020

(1) Wheel Lug Nut

(2) Wheel and Tire

3E–12

WHEEL AND TIRE SYSTEM

Tire

Tire Replacement

When replacement is necessary, the original metric the 
size should be used.   Most metric tire sizes do not have 
exact corresponding alphanumeric tire sizes.   It is 
recommended that new tires be installed in pairs on the 
same axle.   If necessary to replace only one tire, it 
should be paired with tire having the most tread, to 
equalize braking traction.

CAUTION:  Do not mix different types of tires such 
as radial, bias and bias-belted tires except in 
emergencies,  because vehicle handling may be 
seriously affected and may result in loss of control.

Tire Dismounting

Remove valve cap on valve step and deflate the tire. 
Then use a tire changing machine to mount or dismount 
tires.
Follow the equipment manufacturer's instruction.  Do 
not use hand tools or tire lever alone to change tires as 
they may  damage the tire beads or wheel rim.

Tire Mounting

Rim bead seats should be cleaned with a wire brush or 
coarse steel wool to remove lubricants,  and light rust. 
Before mounting a tire, the bead area should be well 
lubricated with an approved tire lubricant.
After mounting, inflate the tire to 200kPa (2.0kg/cm

2

, 28 

psi) so that beads are completely seated.   Inflate the air 
to specified pressure and install valve cap to the stem.

WARNING:  NEVER STAND OVER TIRE WHEN 
INFLATING. BEAD MAY BREAK WHEN BEAD 
SNAPS OVER RIM'S SAFETY HUMP AND CAUSE 
SERIOUS PERSONAL INJURY.
NEVER EXCEED 240 KPA (2.4kg/cm

2

, 35 PSI) 

PRESSURE WHEN INFLATING. IF 240 KPA (2.4kg/
cm

2

, 35 PSI) PRESSURE WILL NOT SEAT BEADS, 

DEFLATE, RE-LUBRICATE AND RE-INFLATE.  OVER 
INFLATION MAY CAUSE THE BEAD TO BREAK AND 
CAUSE SERIOUS PErSONAL INJURY.

Tire Repair

There are many different materials on the market used 
to repair tires.
Manufacturers have published detailed instructions on 
how and when to repair tires.   These instructions can 
be obtained from the tire manufacturer if they are not 
included with the repair kit.

Wheel Inspection

Damaged wheels and wheels with excessive run-out 
must be replaced.
Wheel run out at rim (Base on hub Bore):

480RS012

General Balance Procedure

Deposits of mud, etc. must be cleaned from the inside of 
the rim.
The tire should be inspected for the following: match 
mount paint marks, bent rims, bulges, irregular tire 
wear, proper wheel size and inflation pressure.   Then 
balance according to the equipment manufacturer's 
recommendations.
There are two types of wheel and tire balance.
Static balance is the equal distribution of weight around 
the wheel.
Assemblies that are statically unbalanced cause a 
bouncing action called tramp. This condition will 
eventually cause uneven tire wear.

Steel

Aluminum 

1– Vertical play:

Less than

1.5mm (0.059in)

1– Vertical play:

Less than

0.7mm (0.028in)

2– Horizontal play:

Less than

1.5mm (0.059in)

2– Horizontal play:

Less than

0.7mm (0.028in)

WHEEL AND TIRE SYSTEM

3E–13

480RS013

Legend

EndOFCallout

Dynamic balance is the equal distribution of weight on 
each side of the wheel center-line so that when the tire 
spins there is no tendency for the assembly to move 
from side to side.   Assemblies that are dynamically 
unbalanced may cause shimmy.

480RS014

Legend

EndOFCallout

WARNING:  STONES SHOULD BE REMOVED FROM 
THE TREAD TO AVOID OPERATOR INJURY DURING 
SPIN BALANCING AND TO OBTAIN A GOOD 
BALANCE.

Balancing Wheel and Tire

On-vehicle Balancing

On-Vehicle balancing methods vary with equipment and 
tool manufacturers.   Be sure to follow each 
manufacturer's instructions during balancing operation.

Off-vehicle Balancing

Most electronic off-vehicle balancers are more accurate 
than the on-vehicle spin balancers.   They are easy to 
use and give a dynamic balance.  Although they do not 
correct for drum or disc unbalance (as on- vehicle spin 
balancing does),  they are very accurate.

480RS015

(1) Heavy Spot Wheel Shimmy
(2) Add Balance Weights Here

(1) Heavy Spot Wheel Hop
(2) Add Balance Weights Here

3E–14

WHEEL AND TIRE SYSTEM

Main Data and Specifications

General Specifications

Torque Specifications

E03RX008

Wheels

Size

15 x 6.5JJ

Offset

38.0mm (1.50 in)

P.C.D., wheel studs

139.7mm (5.50in)

Standard tire

Size

P235/75R15

Pressure(Front)

200kPa (2.0kg/cm

2

,26psi)

Pressure(Rear)

200kPa (2.0kg/cm

2

,26psi)