Mazda 323 1988 Workshop Manual page 795

WHEELS AND TIRES
12
Wear indicators Wear indicators
T
2. Tire wear
Wear platform
(a)
W
Shoulder wear
Center wear
w
Feathered edge
W
roe-in or toe-out wear
WHEELS AND TIRES
INSPECTION AND ADJUSTMENTS
Check the following, and adjust or replace as
necessary.
1. Air pressure
Check the air pressure of all tires, including the
spare tire, with an air pressure gauge.
(Refer to page 12-2.)
Caution
The air pressure must be measured when the
tire is cold.
Specifications
Remaining tread
Ordinary tires: 1.6 mm (0.063 in) min.
(Tire should be replaced if wear indicators are
exposed.)
Snow tires: 50% of tread
(Tire should be replaced if wear indicators are
exposed.)
Troubleshooting guide
Abnormal tire wear patterns shown in the illustra-
tion can occur. Refer to the chart for the probable
causes and remedies.
Probable cause
Remedy
(a) * Underinflation
. Measure and adjust
(both sides worn)
pressw?
- Incorrect camber (one
l
Repair. or replace axle and
side wear)
suspension parts
. Hard cornering
. Reduce speed
l
Lack of rotation
* Rotate tires
(b)
l
Overinflation
. Measure and adjust
pressure
l
Lack of rotation
l
Rotate tires
(c) * Incorrect toe-in
* Adjust toe-in
(d) . Incorrect camber or
- Repair, or replace axle and
caster
suspension palis
l
Malfunctioning suspension
l
Repair or replace
. Unbalanced wheel
l Balance or replace
l
Out-of-round brake drum
. Correct or replace
or disc
. Other meOha"iOal con-
- Correct or repiace
difkmS
l
Lack of rotation
l
Rotate tires
12-3