Inspection Before Checking Front Wheel; Alignment - Pontiac FIREBIRD 1972 Service Manual

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1972 PONTIAC SERVICE MANUAL
SPINDLE NUT
(SEE FRONT WHEEL
HUB & DRUM ASSY.
UPPER BOLT
(TORQUE TO
BACKING PLATE
& BRAKE ASSY.
ARlNG ASSY
ARlNG ASSY.-INNER
WITH S.A.E. 30 ENGINE
OIL
8
WIPE OFF EXCESS OIL)
SPINDLE LOWER BOLT
(POLISH & ( 2 REQUIRED-HOLD
APPLY BEARING NUT & TORQUE
STEERING LUBRICANT T O BOLT TO
80
LB. FT.)
KNUCKLE ALLOW BEARING
ARM RACE T O CREEP)
CAP
.-OUTER
Fig. 3-14 Installation of Steering Knuckle, Hub and Drum Assembly (A & X Series)
diagnosis either for repairs under the new vehicle war-
ranty or for maintenance service at customer's request.
These specifications provide an acceptable all-around op-
erating range in that they prevent abnormal tire wear
caused by wheel alignment.
Governmental Periodic Motor Vehicle Inspection pro-
grams usually include wheel alignment among items that
are inspected. T o provide useful information for such in-
spections, the specifications stated in colun 2 of the afore-
said applicable chart are given and these are well within
the range of safe vehicle operation.
In the event the actual settings are beyond the specifica-
tions set forth in column 1 or 2 (whichever is applicable),
or whenever for other reasons the alignment is being reset,
Pontiac recommends that the specifications given in col-
umn 3 of the aforesaid applicable chart be used.
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 follow-
ing items which will affect steering should be considered:
1. Check tire inflation and bring to recommended pres-
sure.
2. Check front wheel bearing adjustment and correct 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 considered extraordi-
nary load.)