Figure 12-14.Ball joint wear indication.
one-sixteenth inch (fig. 12-14). As the ballpoint wears,
the nipple will move up into the balljoint housing. When
the nipple is flush with the housing,replace the ball joint.
6. Check the shock absorber action and front
springs for sagging or breakage.
7. Check the vehicle height. If the vehicle uses
torsion bars vice coil springs, adjust the height by
turning the adjusting bolt (fig. 12-15).
Figure 12-15.Torsion bar adjusting bolt.
8. Inspect the steering wheel for excessive play and
rough travel. The sector shaft (cross shaft) may require
adjustment, which often cures steering looseness.
9. Vehicles should be aligned at curb height and
weight. This means the vehicle should have no
passengers, a full tank of fuel, and the proper amounts
of coolant and lubricants. The spare tire and jack must
be in the proper location.
ADJUSTABLE SUSPENSION ANGLES
Procedures for front-end alignment vary
considerably with each make and model of vehicle.
However, the basic principles do not change. Camber
refers to the same angle in a Jeep as it does in a 15-ton
stake truck Figure 12-16 shows some of the various
adjustments for different model vehicles. Manu-
facturers have designed different ways of controlling
front-end alignment adjustments. They are all a
variation of one of the following: