Pontiac Fiero 1988 Service Manual page 207

3E-4 TIRES AND WHEELS
RECOMMENDED ROTATION PATTERN*
A
k
11
5
0
i
11 ¥
DO NOT INCLUDE "TEMPORARY USE
ONLY" SPARE TIRE IN ROTATION.
H20001-3E
Fig. 6 Tire Rotation - GT Only
installed. Therefore, be sure to purchase the correct
chains for the tires on which they are to be used.
Rubber adjusters should not be used to take up slack
or clearance in chains which are loose due to incorrect
size. Always follow the chain manufacturers
installation instructions.
Use of chains may adversely affect car handling.
When using chains:
• Adjust speed to road conditions
• Avoid sharp turns
• Avoid locked-wheel braking
In g e n e r a l , t o h e l p p r e v e n t c h a i n d a m a g e
t o y o u r c a r :
• Install the chains on the drive tires as tightly as
possible, then tighten them again after driving
1/4 to 1/2 mile (0.4 to 0.8 kilometer). The use of
chains on the non-drive tires is not recommended;
the chains may contact and possibly damage the
car. If you intend to use chains on the non-drive
tires, be sure there is enough clearance.
• Do not exceed 45 mph (70 km/h), or the chain
manufacturer's speed limit, if lower.
m Drive in a restrained manner and avoid large
bumps, potholes, severe turns and other
maneuvers which could cause the tires to bounce
up and down.
• Follow any other instructions of the chain
manufacturer which do not disagree with the
above.
A d d i t i o n a l s p e c i f i c i n f o r m a t i o n i s
p u b l i s h e d in t h e O w n e r ' s M a n u a l .
S E R V I C E OPERATIONS
W H E E L R E M O V A L
Fig. 8
Sometimes wheels can be difficult to remove from
the car due to foreign material or a tight fit between the
wheel center hole and the hub or rotor. These wheels
can be removed without damage as follows:
1. Tighten all wheel nuts on the affected wheel, then
loosen each wheel nut two turns.
2. Lower car onto floor.
3. Rock the car from side to side as hard as possible
using one or more person's body weight to loosen
the wheel, and/or rock the car from "Drive" to
"Reverse" allowing car to move several feet in
TYPE "PL"
1100 SERIES, SAE CLASS " S "
TYPE " P "
1200 SERIES, SAE CLASS " U "
TYPE "RP"
1800 SERIES, LUG-REINFORCED
G33956-3E-AN
Fig. 7 Examples of Passenger Car Tire Chains
each direction. Apply quick, hard jabs on the
brake pedal to loosen the wheel.
4. Raise the car. Remove the wheel nuts and the
wheel.
Penetrating oil has not been found to be effective
in removing tight wheels, however, if it is used, it
should be applied sparingly to the wheels center hole
area only. 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 car is driven
causing loss of control.
NEVER use heat to loosen a tight wheel because
the application of heat to the wheel can shorten the life
of the wheel, wheel bolts and/or wheel bearings.
Excessive force such as hammering the wheel or
tire can also cause damage and is not recommended.
Slight tapping of the tire side wall, such as with one's
hand or a rubber mallet, is normally acceptable.
Before installing wheels, remove any build up of
corrosion on the wheel mounting surface and brake
drum or rotor mounting surface by scraping and wire
brushing. Installing wheels without good
metal-to-metal contact at the mounting surfaces can
cause wheel nuts to loosen, which can later allow the
wheel to come off causing loss of control.
Wheel nuts must be tightened in sequence and to
proper torque to avoid bending wheel or brake drum
or rotor.