IS 250C V6-2.5L (4GR-FSE) (2011)
Ball Joint: Testing and Inspection
Front Suspension Lower Arm
FRONT SUSPENSION: FRONT LOWER BALL JOINT: INSPECTION
1. INSPECT FRONT LOWER BALL JOINT
(a) Inspect the turning of the front lower ball joint.
(1) Flip the ball joint stud back and forth 5 times as shown in the illustration.
(2) Temporarily install the nut, and use a torque wrench to turn the nut continuously at a rate of 3 to 5 seconds per turn. Take the torque
reading on the 5th turn.
Turning torque:
0.5 to 6.0 N*m (5 to 61 kgf*cm, 5 to 53 in.*lbf)
(b) Inspect the turning of the tie rod ball joint.
(1) Flip the ball joint stud back and forth 5 times as shown in the illustration.
(2) Temporarily install the nut, and use a torque wrench to turn the nut continuously at a rate of 3 to 5 seconds per turn. Take the torque
reading on the 5th turn.
Turning torque:
0.8 to 4.5 N*m (8 to 46 kgf*cm, 7 to 40 in.*lbf)
(c) Check the dust boots for cracks or grease leakage.
If the value is not within the specified range, replace the front lower ball joint with a new one.