FRONT
SUSPENSION
3-5
then be taken with the instrument bearing 120°
around
the wheel from where the first reading was
taken.
6. Use the same procedure for taking the
third
reading.
7, Average the three readings to find the actual
toe-in.
SET
TOE-IN
1. Remove horn button and set gear on high point
of worm by turning steering wheel until
mark
on
shaft is exactly at top.
This
mark
locates the high
point, or middle of gear travel.
2.
a. On Pontiac and
Firebird
loosen tie rod end
clamp
bolts. To increase toe-in
turn
right tie tube
in
direction of rotation of wheels, when car moves
forward;
turn
left tie rod tube in opposite direction.
Turn
both tubes an equal amount until toe-in is 0"
to 1/8".
b.
On Tempest loosen tie rod sleeve clamp
bolts. To increase toe-in -
turn
left tie rod sleeve
in
direction of rotation of wheels, when car moves
forward;
turn
right tie rod sleeve in opposite
direction.
Turn
both sleeves an equal amount until
toe-in is 0 to 1/8".
3.
Make sure front wheels are straight ahead by
measuring
from a reference point at same place on
each
side of frame center to front of wheel
rims.
Ji
measurements are not equal,
turn
both tie rod
tubes in same direction (so as not to change toe-in)
until
measurements become equal. Re-check toe-in
since toe-in measurement is accurate only with
wheels in straight-ahead position.
4. Tighten tie rod adjuster sleeve bolts to 17 lb. ft.
torque, making sure bolts are to low side of tie rod
and
at a 0-15° angle
rearward
from horizontal po-
sition on Pontiac and Tempest, 0-15° angle forward
from
horizontal position with bolts on the high side
of tie rod on
Firebird
models.
CHECK
STEERING
AXIS
INCLINATION
Generally
there is no need to check steering axis
inclination
unless a problem exists after setting
caster
and camber to specification.
Failure
to obtain
correct
measurement indicates a bent or damaged
steering or suspension part.
CHECK
TOE-OUT
ON
TURNS
Check
toe-out
after any necessary corrections to
camber,
caster, and toe-in have been made.
1.
Check
with any reputable front end aligning
equipment, using
full
floating
turn
tables.
With
front
wheels resting on
turn
tables,
turn
wheels to left
until
left wheel has been turned 20° from straight
ahead.
The right wheel should have turned 18° to 19°.
2.
Turn
wheels to right until right wheel has been
turned
20° from straight ahead.
Left
wheel should
have turned 18° to 19°.
3.
Incorrect
toe-out
on turns may be caused by
incorrect
front end adjustments, but generally
indi-
cates bent steering arms which must be replaced.
Replacement
of one or both steering arms should
be followed by a complete front end check.
MINOR
REPAIRS
FRONT
WHEEL
BEARING
REPLACEMENT
(Fig. 3-1)
1. Remove hub caps and raise vehicle.
2.
Pry out dust cap and remove cotter pin, wheel
adjustment nut and washer.
3.
Remove tire, wheel and brake drum end from
spindle with a
gentle
rocking motion. Ii car is
equipped with disc brakes remove brake caliper
prior
to removing disc hub from spindle.
CAUTION:
When whee I is
partially
loose on
spindle, remove outer wheel bearings. DO NOT
DROP
BEARINGS.
NOTE:
In some cases it may be necessary to
back off brake adjustment to remove brake drum
and wheel
assembly.
4. Remove inner bearing from hub by tapping out
inner
grease seal with a brass drift.
Discard
seal.
5. Wipe old grease out of wheel hub and from
steering knuckle.
6.
Wash
bearings in solvent and
air-dry.
Do not
spin
dry with compressed air. Inspect bearings and
races
for
cracking,
pitting, etching, etc.
NOTE:
Bearings and outer races are
mated
parts.
If
necessary to replace either one,
both
bearing
assembly
and outer race
MUST
be replaced.
7. Ii necessary to replace a bearing outer race,
drive
out with a brass drift inserted behind race in
notches in hub. Use care when installing new race
to start it squarely into hub, to avoid distortion and
possible
cracking.
Install
outer race of outer bear-
ing
with J 8849.
Install
outer race of inner bearing
with
J 8914. Use handle J 8092 with both installers.
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