Operation CHARM: Car repair manuals for everyone.

Ball Joint

Front Ball Joint Wear Limit

1) Measure the play of the ball joint using the following procedures. Replace with a new part if the play exceeds specification.
(1) With 980 N (100 kgf, 220 lb) loaded in direction shown in the figure, measure the length l1.





(2) With 980 N (100 kgf, 220 lb) loaded in direction shown in the figure, measure the length l2.





(3) Determine free play using the following formula.
S = l2 - l1
(4) Replace with a new part if the play exceeds specification.

FRONT BALL JOINT
Specification for replacement S:
Less than 0.3 mm (0.012 in)

2) If the play is within specification, visually check the dust cover.
3) Remove the ball joint and cover, and check for wear, damage or cracks. If any damage is found, replace the corresponding part.
4) If the dust cover is damaged, replace with a new ball joint.