FRONT
SUSPENSION
3-3
b.
Back off the adjusting nut
until
loose.
c. Tighten adjusting nut 20-25 lb. in. torque.
d.
Loosen adjusting nut
until
nearest
cotter pin
hole in spindle lines up
with
a slot in the adjusting
nut.
NOTE;
There
are two
locking
holes.
e. This should result in the desired
limits
of
.001" to .005" end play.
4.
Insert cotter pin, and
clinch
over. Be
sure
ends
do not interfere
with
dust cap.
5.
Install
dust cap and lower
tire
to ground.
HAND
FEEL
METHOD
(Optional)
1. Raise wheel and
tire
assembly off ground.
2.
Remove dust cap and cotter pin
from
adjusting
nut.
3. Adjust bearing as
follows:
a. Tighten adjusting nut
with
8" or 10" wrench,
using
enough arm length leverage to
ensure
parts
are properly
seated
while
spinning wheel.
b.
Back off nut
until
loose, then tighten nut
fin-
ger
tight.
c. If hole in spindle lines up
with
slot in nut,
install
cotter pin. If not, back off nut to next slot
and
install
cotter pin.
d.
Spin wheel - if wheel feels
tight
then back
off
one more slot and readjust, be
sure
brake
shoes
are not dragging.
4.
Clinch
cotter pin and cut off extra length to
ensure
ends
will
not interfere
with
dust cap.
5.
Install
dust cap and lower
tire
to ground.
SUSPENSION
ALIGNMENT
Front
suspension components are adjusted to a
specific
alignment
while
the vehicle is motionless
so that suspension components can properly func-
tion
together when vehicle is moving to minimize
tire
wear and maintain desirable steering and
handling
characteristics.
INSPECTION
BEFORE
CHECKING
FRONT
WHEEL
ALIGNMENT
Before
any checking or corrective
work
is started
on
wheel alignment elements,
including
toe-in,
caster,
camber, steering axis
inclination,
and toe-
out
on turns, the
following
items
which
will
affect
steering should be considered:
1. Check
tire
inflation
and
bring
to recommended
pressure,
2.
Check
front
wheel bearing adjustment and cor-
rect if
necessary.
3. Check wheel and
tire
run-out.
4.
Check wheel and
tire
for excessive unbalance
which
would
affect steering.
5. Check spherical
ball
joints.
6. Check steering linkage for
looseness.
Replace
or
tighten parts.
7. Check shock
absorbers
for leaks or lack of
control.
8. Check for extraordinary load in car. Remove
load
or
compensate
for setting height. (Samples,
tools,
etc., carried regularly should not be con-
sidered extraordinary load.)
9. Check for proper lubrication of
front
end.
CHECKING
AND
ADJUSTING
SEQUENCE-
FRONT
WHEEL
ALIGNMENT
All
measurements
and adjustments should be
made
in
the
following
order.
a. Curb height (see Curb Height chart in
section 0).
b.
Caster
and camber.
c. Toe-in
d.
Steering axis
inclination.
e. Toe-out on turns.
ADJUST
CASTER
AND
CAMBER
Caster
and camber are adjusted to specifications
by
placing shims between the upper
pivot
shafts and
the frame (Fig. 3-4).
Both
adjustments can be
made
at the
same
time. In order to remove or
install
shims, raise car to remove weight
from
front
wheel,
then loosen the control arm shaft to frame bolts.
Addition
to camber
angles
moves top of wheel out-
substraction in. Fig. 3-5, shows
tool
J 22618
which
must be used to loosen upper control arm shaft to
frame bolts on the Pontiac.
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