Inspection And Repair; Installation - Isuzu Trooper 1999 Workshop Manual

3. Remove upper ball joint nut and cotter pin, then use
remover J–36831 to remove the upper ball joint from
the knuckle.
CAUTION: Be careful not to break the ball joint boot.
4. Remove bolt and washer.
5. Remove upper ball joint.

Inspection and Repair

Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.
f Inspect the lower end boot for damage or grease leak.
Move the ball joint as shown in the figure to confirm its
normal movement.
f Inspect screw/taper area of ball for damage.
f If any defects are found by the above inspections,
replace the ball joint assembly with new one.
f After moving the ball joint 4 or 5 times, attach nut then
measure the preload.
Starting torque: 0.5 –3.2 N·m (0.4–2.4 lb ft)
If the above limits specified are exceeded, replace the ball
901RW043
joint assembly.

Installation

1. Install upper ball joint.
2. Install bolt and nut, then tighten them to the specified
torque.
Torque: 57 N·m (42 lb ft)
3. Install nut and cotter pin, then tighten the nut to the
specified torque with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 98 N·m (72 lb ft)
450RS023
FRONT SUSPENSION
3C 23
450RS024