Cadillac 60 Series 1963 Shop Manual page 29

4-6
CHASSIS SUSPENSION
Positive Caster Angle
Vertical
Negative Caster Angle Vertical
Steering Axis —
Camber
Adjustment
Eccentric
Front Of Car
Tie Strut Caster Adjusting Nuts
Positive Camber
- C / L Of Wheel
Steering Knuckle
Angle
Fig. 4-5 Elements of Front Wheel Alignment
Caster should be - 1/2° to - 1-1/2° on all series
cars with a preferred setting of -1°. Caster
variation between wheels must not exceed 1/2°.
Proper caster adjustment is obtained by short-
ening or lengthening the tie-struts between lower
suspension arms and frame front cross member,
to tilt vertical axis of wheel either "fore" or
"aft".
After proper caster adjustment has been made,
tighten tie-strut mounting bolt nuts at lower arms
to 35 foot-pounds, and front lock nuts to 35 foot-
pounds. When tightening front lock nut, hold rear
nut with wrench so as not to disturb caster adjust-
ment, Fig. 4-6. Recheck to make sure adjustment
is correct after lock nuts have been tightened.
Then install air deflector on underside of frame
front cross member.
Before adjusting caster, loosen tie-struts at
lower suspension arms. This will allow tie-strut
to center itself and prevent damage to bushings
and premature wear at frame front cross member.
To provide more negative caster, lengthen tie-
struts by loosening front lock nuts and tightening
rear lock nuts. One turn of lock nuts results in
approximately 1/2° change in caster.
To provide more positive caster, shorten tie-
struts by loosening rear lock nuts and tightening
front lock nuts.
d. Camber Adjustment
Camber is adjusted at the camber eccentric
located in steering knuckle upper support, Fig.
4-7. The upper spherical joint stud fits through
the camber eccentric and the knuckle. Turn-
ing camber eccentric repositions upper spherical
joint stud.
To adjust camber, loosen lock nut on spherical
joint stud one turn and tap bottom of stud with
Fig. 4-6 Adjusting Caster Fig. 4-7 Camber Adjustment Eccentric