DAEWOO NUBIRA 2004 Service Repair Manual

REAR SUSPENSION 2D – 19
DAEWOO V–121 BL4
HUB AND BEARING
The hub bearing is not unit repair serviceable. If the hub
bearing is defective, the hub and bearing assembly should
be replaced.

2D – 20IREAR SUSPENSION
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
REAR SUSPENSION
The rear suspension is fully independent and consists of
a crossmember with four parallel links, two trailing links,
two strut assemblies with coil springs and insulators, and
two knuckles containing the hub and bearing assemblies.
The strut assemblies support the weight of the vehicle us-
ing coil springs positioned around the strut dampeners.The coil springs are seated on insulators attached to the
upper mount and the lower spring seat of the strut assem-
bly. The parallel links and the trailing link bracket have rub-
ber isolator bushings at each end and are attached to the
crossmember and the knuckle. The rear parallel link is at-
tached to the crossmember through adjustment cams that
are used to adjust rear toe. The trailing links are attached
to the body, through the trailing link bracket, and the bot-
tom of the knuckle. A forged knuckle bolts to each strut as-
sembly. Lateral movement of the knuckle is controlled by
the parallel links. Fore and aft movement of the knuckle is
controlled by the trailing link.

SECTION : 2E
TIRES AND WHEELS
TABLE OF CONTENTS
SPECIFICATIONS2E–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Size and Pressure Specifications 2E–1. . . . . . . .
Inflation Pressure Conversion Specifications 2E–2. .
Fastener Tightening Specifications 2E–2. . . . . . . . . . .
DIAGNOSIS2E–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Runout 2E–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR2E–3 . . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 2E–3. . . . . . . . . . . . . . . . . . . . .
Wheel 2E–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On–Vehicle Balancing 2E–4. . . . . . . . . . . . . . . . . . . . . .
UNIT REPAIR 2E–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alloy Wheel Porosity 2E–5. . . . . . . . . . . . . . . . . . . . . . .
Alloy Wheel Refinishing 2E–5. . . . . . . . . . . . . . . . . . . . .
Off–Vehicle Balancing 2E–7. . . . . . . . . . . . . . . . . . . . . . Correcting Non–Uniform Tires 2E–7. . . . . . . . . . . . . . .
Tire and Wheel Match–Mounting 2E–8. . . . . . . . . . . . .
Tire Mounting and Dismounting 2E–8. . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION 2E–9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire and Wheel Balancing 2E–9. . . . . . . . . . . . . . . . . . .
Tire Chain Usage 2E–9. . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Tires 2E–10. . . . . . . . . . . . . . . . . . . . . . . .
All Season Tires 2E–10. . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Metric Sized Tires 2E–10. . . . . . . . . . . . . .
Tire Label 2E–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare Tire 2E–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 2E–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation o Tires 2E–11. . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
TIRE SIZE AND PRESSURE SPECIFICATIONS
Inflation Pressure at Full Load
TiresWheelFrontRear
kPapsikPapsi
175 / 70R145.5J x 14(Steel)2053020530
175 / 70R145.5J x 14(Alloy)2053020530
T125 / 70D154T x 154156041560
185 / 65R145.5J x 14(Steel)2053020530
185 / 65R145.5J x 14(Alloy)2053020530
T125 / 70D154T x 154156041560
195 / 55R156J x 15(Steel)2053020530
195 / 55R156J x 15(Alloy)2053020530
195 / 55R156J x 15
(Alloy, Sporty)2053020530
T125 / 70D154T x 154156041560

2E – 2ITIRES AND WHEELS
DAEWOO V–121 BL4
INFLATION PRESSURE CONVERSION SPECIFICATIONS
kPaPsikPaPsikPaPsi
140201852723534
145211902824035
155222002925036
160232053027540
165242153131045
170252203234550
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Wheel Bolt (Alloy Wheel)10074–
Wheel Bolt (Steel Wheel)10074–
DIAGNOSIS
WHEEL RUNOUT
Measure wheel runout with an accurate dial indicator.
Measurements may be taken with the wheels either on or
off the vehicle, using an accurate mounting surface such
as a wheel balancer. Measurements may be taken with or
without the tire mounted on the wheel.
Measure radial runout and lateral runout on both the in-
board and the outboard rim flanges. With the dial indicator
firmly seated next to the wheel and tire assembly, slowly
rotate the wheel one revolution and record the indicator
reading. If any measurement exceeds the following speci-
fications and there is a vibration that wheel balancing will
not correct, replace the wheel. Disregard any indicator
readings due to welds, paint runs, or scratches.
Steel Wheels
S Radial runout: 0.8 mm (0.03 inch)
S Lateral runout: 1.0 mm (0.04 inch)
Alloy Wheels
S Radial runout: 0.25 mm (0.01 inch)
S Lateral runout: 0.25 mm (0.01 inch)
Measure free radial runout on the center of the tire tread.
The tread can be taped to present a smooth surface. Mea-
sure free lateral runout on the outboard side of the tire
nearest to the tread.

TIRES AND WHEELS 2E – 3
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
WHEEL
Removal Procedure
1. Loosen the wheel bolts.
2. Raise and suitably support the vehicle.
3. Remove the wheel bolts.
Notice : Never use heat to loosen a tight wheel. It can
shorten the life of the wheel, the wheel nuts and the wheel
bearings. Excessive force, such as hammering the wheel
or tire, can also cause damage and is not recommended.
Slight tapping of the wheel sidewall with one’s hand or with
a rubber mallet is acceptable.
4. Remove the wheel.
Difficulty in removing the wheels from the vehicle can be
due to foreign material or to a tight fit between the wheel
centerhole and the hub or the rotor. These wheels can be
removed by
5. Retightening the wheel bolts on the affected wheel
and then loosening the wheel bolts by two turns.
6. Lowering the vehicle and rocking it from side to side
as hard as possible, using one or more person’s
body weight to loosen the wheel.
7. Raising the vehicle and removing the wheel.
CAUTION : Do not allow the penetrating oil to get on
the vertical surfaces between the wheel and the drum
(or rotor) because penetrating oil in this area could
cause the wheel to work loose as the vehicle is driven,
resulting in loss of control and an injury accident.
Penetrating oil is not effective in removing tight wheels. If
it is used, however, apply it sparingly and only to the
wheel’s centerhole area.
Installation Procedure
Notice : Before installing the wheels, remove any buildup
of corrosion on the wheel mounting surface and the brake
drum or the rotor mounting surface by scraping and brush-
ing them with a wire brush. Installing the wheels without
good metal–to–metal contact at the mounting surfaces
can cause the wheel nuts to loosen, which can later allow
a wheel to come off while the vehicle is moving. Wheel
bolts must be tightened in sequence and to the proper
torque to avoid bending the wheel, the brake drum or the
rotor.
1. Mount the wheel.
2. Install the wheel bolts in the sequence shown. Do
not tighten the wheel bolts.
3. Lower the vehicle.
Tighten
Tighten the wheel bolts to 100 NSm (74 lb–ft).

2E – 4ITIRES AND WHEELS
DAEWOO V–121 BL4
ON–VEHICLE BALANCING
On–vehicle balancing will help correct vibrations due to
brake drum, rotor, and wheel cover imbalances.
Notice : Do not allow the front suspension to hang free.
When the drive axle is run at an extreme angle, extra vibra-
tions can occur, as well as damage to seals and joints.
1. During on–vehicle balancing, do not remove the
balance weights from the off–vehicle dynamic bal-
ance.
2. If more than 1 ounce of additional weight is re-
quired, split the weight between the inner and the
outer rim flanges.
CAUTION : Do not spin the drive wheels faster than
55km/h (35 mph) as indicated by the speedometer.
This limit is necessary because the speedometer indi-
cates only one–half of the actual wheel speed when
one drive wheel is spinning and the other drive wheel
is stopped. Personal injury and damage may result
from high–speed spinning.
3. Spin the driven tire and wheel assemblies using the
engine.

TIRES AND WHEELS 2E – 5
DAEWOO V–121 BL4
UNIT REPAIR
ALLOY WHEEL POROSITY
Wheel repairs that use welding, heating or peening are not
approved.
1. Raise and suitably support the vehicle.
2. Remove the wheel. Refer to ”Wheel” in this sec-
tion.
CAUTION : To avoid serious injury, do not stand over
the tire when inflating, because the bead may break
when it snaps over the safety hump. Do not exceed
275 kPa (40 psi) of air pressure in any tire if the beads
are not seated. If 275 kPa (40 psi) of air pressure will
not seat the beads, deflate the tire. Relubricate the
beads. Reinflate the tire. Overinflation may cause the
bead to break and cause serious injury.
3. Locate leaking areas by inflating the tire to 345 kPa
(50 psi) and dipping the tire and wheel assembly
into a water bath.
4. Mark the leak areas and remove the tire from the
wheel.
5. Scuff the inside wheel surface at the leak area with
80–grit sandpaper. Clean the leak area with a gen-
eral–purpose cleaner.
6. Apply a 3.3 mm (0.13 inch) thick layer of adhesive/
sealant to the leak area. Allow it to dry for 12 hours.
7. Install the tire on the wheel. Inflate the tire to 345
kPa (50 psi) and check for leaks as in step 3.
8. Adjust the tire pressure to meet specifications. Re-
fer to ”Tire Size and Pressure Specifications” in
this section.
9. Balance the wheel. Refer to ”Tire and Wheel Bal-
ancing” in this section.
10. Install the wheel. Refer to ”Wheel” in this section.
11. Lower the vehicle.
ALLOY WHEEL REFINISHING
A protective clear or color coating is applied to the surface
of the original equipment cast alloy wheels. Surface deg-
radation can develop if this clear coating is damaged or re-
moved. This can happen at some automatic car wash fa-
cilities that use silicon carbide–tipped tire brushes to clean
white walls and tires. Once the protective coating is dam-
aged, exposure to caustic cleaners or road salt causes fur-
ther surface degradation. The following procedure details
how to strip, clean and recoat alloy wheels.
CAUTION : To avoid serious personal injury, follow
the manufacturer’s recommendations and cautions
when using these materials.
Required materials:
S Amchem Alumi Prep No. 33. Stock No. DX533 or
equivalent cleaning and conditioning chemical for
alloys.

2E – 6ITIRES AND WHEELS
DAEWOO V–121 BL4
S Amchem Alodine No. 1001. Stock No. DX50T or
equivalent coating chemical for alloys.
S Ditzler Delclear Acrylic Urethane Clear, Stock No.
DAU–75 or equivalent.
S Ditzler Delthane Ultra–Urethane Additive, Stock No.
DXR–80 or equivalent.
Before repairing the alloy damage or the clear coat dam-
age, prepare the wheels and the tires.
1. Remove the wheel from the vehicle.
2. Mark the location of the outboard weights and re-
move them.
3. Wash the wheel inside and out with a water–based,
all–purpose cleaner. Remove the grease and oil
with a solvent cleaner.
4. Mask the tire prior to painting.
5. Using a 400–grit wet or dry sandpaper, sand over
the painted areas that will not require recoloring.
Sanding will promote the adhesion of the clear coat.
Alloy Damage on Wheel Surface
1. Mount the wheel on a brake lathe and spin the as-
sembly slowly.
2. Sand the wheel with a backing block or pad. Hold
the backing block or pad flat to the surface of the
wheel and sand slowly back and forth from the cen-
ter to the outer edge of the tire to remove the dam-
age. Use the following sandpaper grits in the order
listed:
1) 80 grit.
2) 150 grit.
3) 240 grit.
Clear Coat Damage on Unpainted Wheels
1. Apply the chemical stripper Amchem Alumi Prep
No. 33. Use a small 1/4–inch detail brush to apply
the stripper around the perimeter and spoke–like
areas.
2. Remove the stripper according to the manufactur-
er’s recommendations.
CAUTION : To avoid serious personal injury, do not
use engine power to rotate the wheel while sanding.
3. Sand the wheel with 240–grit sandpaper by rotating
the wheel on a slow–spinning brake lathe or by
mounting the wheel on the car and spinning it by
hand. Sanding restores the machined appearance
and promotes adhesion.
After repairing the alloy or clear coat damage, the wheels
must be recoated.

TIRES AND WHEELS 2E – 7
DAEWOO V–121 BL4
Recoating Procedure
CAUTION : To avoid serious personal injury when ap-
plying any two–part component paint system, follow
the specific precautions provided by the paint
manufacturer. Failure to follow these precautions
may cause lung irritation and an allergic respiratory
reaction.
1. Clean the surface.
2. Soak the wheel with Amchem Alumi Prep No. 33 or
equivalent for 1 to 3 minutes. Rinse the wheel with
water and blow it dry.
3. Soak the wheel with Amchem Alodine No. 1001 or
equivalent for 1 to 3 minutes. Rinse the wheel with
water and blow it dry.
4. Finish with Ditzler Delclear Urethane and Ditzler
Ultra–Urethane Additive or equivalent, using three
coats.
1st coat – spray on a light mist coat; let dry.
2nd coat – spray or paint on a light coat; let dry.
3rd coat – spray or paint on a heavy double wet
coat; let dry.
5. Let the urethane dry for 24 hours or flash for 30
minutes and force dry at 60°C (140°F) for 30 min-
utes. Allow the urethane to cool for 5 minutes be-
fore mounting the wheel on the vehicle.
OFF–VEHICLE BALANCING
Perform wheel balancing with an electronic off–vehicle ba-
lancer. The balancer is easy to use and gives both a static
and a dynamic balance. Unlike on–vehicle balancing, the
off–vehicle balancer does not correct for drum or rotor im-
balance. This drawback is overcome by its accuracy (usu-
ally to within 1/8 ounce). Secure the wheel on the balancer
with a cone through the back side of the centerhole, not
through the wheel bolt holes.
CORRECTING NON–UNIFORM TIRES
There are two ways to correct properly balanced tires
which still vibrate. One method uses an automatic ma-
chine which loads the tire and buffs small amounts of rub-
ber from high spots on the outer two tread rows. Correction
by this method is usually permanent and, if it is done prop-
erly, does not significantly affect the appearance or the
tread life of the tire. Tire truing with a blade–type machine
is not recommended because it substantially reduces the
tread life and often does not correct the problem perma-
nently.
Another method is to dismount the tire and rotate it 180 de-
grees on the rim. Do this only on the tire and wheel assem-
blies which are known to be causing a vibration because
this method is just as likely to cause good assemblies to
vibrate.

2E – 8ITIRES AND WHEELS
DAEWOO V–121 BL4
TIRE AND WHEEL
MATCH–MOUNTING
The tires and wheels are match–mounted at the assembly
plant. Match–mounting aligns the radially stiffest part of
the tire, or high spot, to the smallest radius, or low spot, of
the wheel.
The high spot of the tire is originally marked by a red paint
mark or an adhesive label on the outboard sidewall.
The low spot of the wheel will be at the location of the valve
stem.
Before dismounting a tire from its wheel, scribe a line on
the tire at the valve stem to assure that it is remounted in
the same position.
Replacement tires that are of original equipment quality
will have their high and low spot marked in the same man-
ner.
TIRE MOUNTING AND DISMOUNTING
Notice : Use a tire–changing machine to mount or dis-
mount the tires. Follow the equipment manufacturer’s in-
structions. Do not use hand tools or tire irons to change
tires. These tools may damage the beads or the wheel rim.
1. Clean the rim bead seats with a wire brush or
coarse steel wool to remove lubricants, old rubber,
and light rust. Before mounting or dismounting a
tire, lubricate the bead area well with an approved
tire lubricant.
CAUTION : To avoid serious injury, do not stand over
the tire when inflating it, because the bead may break
when it snaps over the safety hump. Do not exceed
275 kPa (40 psi) of air pressure in any tire if the beads
are not seated. If 275 kPa (40 psi) of air pressure will
not seat the beads, deflate the tire. Relubricate the
bead and reinflate the tire. Overinflation may cause
the bead to break and cause serious injury.
2. fter mounting the tire, inflate it until the beads are
seated. Never exceed 275 kPa (40 psi) to seat the
beads.
3. Install the valve core and inflate the tire to the prop-
er pressure. Make sure the locating ring outside of
the bead of the tire shows around the rim flanges of
the wheel on both sides. This positioning of the tire
will insure that the bead of the tire is seated.