Pontiac tempest 1968 Service Manual page 89

3 - 2
1968 P O N T I A C S E R V I C E MANUAL
To Check:
1. Place lift or car jack under lower frame front
crossmember and raise wheel off floor. This will
maintain load on the ball joints.
2. Spin wheel to check for unusual noise.
3. If bearings are noisy or excessively loose, they
should be cleaned and inspected prior to adjustment.
NOTE: To check for loose bearing, mount a dial
indicator to the adjusting nut (Fig
a
3-2) with the
indicator ball on a smooth portion of the wheel hub.
Grip the tire at the top and bottom and move the
wheel assembly in and out on the spindle. Move­
ment greater than .005" indicates a loose bearing.
If necessary to inspect bearings, see Minor Re­
pairs - Wheel Bearing Remove and Replace.
To Adjust:
TORQUE WRENCH METHODS (Preferred) (Fig. 3-3)
1. Raise wheel and tire assembly off ground.
2. Remove dust cap and cotter pin from adjusting
nut.
3. Adjust bearing as follows:
a. Fully seat bearing parts by continuously
rotating the drum while tightening the adjusting
nut to 10-16 lb. ft. torque.
JTT
•:J,
%
...
Fig. 3-2 Checking Front Wheel Bearing Adjustment
1 . ROTATE WHEEL AND
SEAT BEARING BY
TIGHTENING NUT
10-16 LB. FT. TORQUE
LOOSEN NUT
UNTIL FREE
3. RETIGHTEN NUT
20-25 LB. IN. TORQUE
6 )
4. LOOSEN NUT UNTIL
NEAREST HOLE IN
SPINDLE LINES UP
WITH A SLOT IN
NUT. INSERT COTTER PIN.
F i g . 3-3 Wheel Bearing Adjustment