Test For Leaks; Remove Tire From Wheel; Wheel Stud; Puncture Repairs - Pontiac Grand Prix Service Manual

MINOR REPAIRS
TEST FOR LEAKS
1. Use soapy water to check valve for leaks. In many
cases air loss can be corrected by simply tightening the
valve
core.
2. If the reason for air loss is not immediately
discernible, submerge the complete wheel assembly in
a tank of water.
3. Mark the tire and rim at the point where
air
is
escaping.
TIRE MOUNTING AND DISMOUNTING IN-
STRUCTIONS:
The wheel assembly has a flat hump bead seat on the
outboard (valve hole) side of the rim. T h i s design
provides a tight tire fit, making it necessary to use a
rubber lubricant or a vegetable oil soap solution for
tire
mounting and dismounting. This design also
makes it marrdatorv that tire mounting and dismount-
ing be done with the outboard side of the
wneel
up.
WHEEL STUD
REMOVE AND REPLACE
1. Support the hub and drum assembly with approxi-
mately 1" diameter by 5" long pipe or other suitable
tool directly under and surrounding the stud to be
removed and press out the stud.
CAUTION: If
hub and drum are not supported
undeneath, pressure fiom the press may distort the drum
or push the hub assembly away fiom the drum.
2. Clean out the existing hole by drilling through the
hub and drum assembly. Use a 41/64" (.6406j drill on
Pontiac and a 9/16" (.5625) drill on Tempest and
Firebird.
3. Ress in replacement stud.
REMOVE TIRE FROM WHEEL
1. Remove valve cap and valve wre. Let out all the
air.
2. With valve hole side of tire up, break beads away
from rim. Use only conventional bead-breaker type
machine.
CAUTION: During the entire operation of breaking
.
beads away fiom rim and removing tire fiom
rim,
special
care should be taken not to damage the tire beads.
PUNCTURE REPAIRS
Puncture repairs may be quickly,and permanently
performed, using one of several kits available through
tire manufacturer's dealer outlets. "Hot patch" types
are ncommended for puncture repairs.
WHEEL LEAKS
Examine
rim
flanges for sharp dents. Any dent visible
to the eye should be straightened. Never
use
heat
when straightening a wheel.
WITH SPACE
FRONT OF C A R SAVER SPARE
CONVENTIONAL
Fig. 10-1 Tire rotation Diagram