Pic. 4.27. Front Lower Arm Components
Withdrawal
Remove the front wheel.
Loosen the lower control arm ball joint bolt to the steering knuckle.
Remove the three bolts securing the lower control arm to the subframe.
Installation
Installation is made in an order, the return to removal.
Disassembly
Pic. 4.28. Removing the bushing of the lower suspension arm
Using the special tool, remove the lower control arm bushing (pic. 4.28).
Pic. 4.29. Removing the protective cover of the ball joint of the lower suspension arm
Using a flathead screwdriver, remove the lower control arm ball joint boot (pic. 4.29).
Remove the snap ring.
Pic. 4.30. Removing the ball joint from the lower control arm assembly
Using a plastic hammer, remove the ball joint from the lower control arm assembly (pic. 4.30).
Examination
Check the bushing for wear and deformation.
Check the lower control arm for kinks or other damage.
Check the ball joint boot for cracks. If the boot is cracked, replace the ball joint assembly.
Check the lower control arm connecting bolt.
Rock the lower arm ball stud several times to check for looseness.
Pic. 4.31. Measuring the torque of the ball joint pin of the lower arm
Check the torque of the ball joint pin of the lower arm (pic. 4.31).
Rated torque: 1.5 - 3.5 Nm.
If the pin torque is greater than the rated torque, replace the ball joint assembly.
If the torque of the pin is less than the nominal torque, then the ball joint can be used further if there is no damage.
Pic. 4.32. Checking the moment of rotation of the ball joint of the anti-roll bar
Check the starting torque of the ball joint of the stabilizer bar (pic. 4.32).
If the ball joint boot is cracked or torn, replace it and add grease to the ball joint.
Rock the anti-roll bar ball pin a few times to check for looseness.
Screw a self-locking nut onto the ball joint pin and measure the starting torque.
Rated torque: 0.7 - 2.0 Nm.
If the pin torque exceeds the rated torque, replace the anti-roll bar. If the pin torque is less than the rated torque, then the ball joint can be used further if there is no wear or excessive cracks.
Assembly
Using the special tool, press in the lower control arm bushing.
Note. Nominal force for pressing the sleeve: more than 50 N
Pic. 4.33. Scheme of pressing the pin of the ball joint
While holding the ball joint pin, press the pin into the lower control arm bushing (pic. 4.33).
Note. Do not press in the protective cover of the ball joint.
Using pliers, install the retaining ring.
Pic. 4.34. Scheme of applying lubricant to the inner edge of the protective cover
Apply lubricant to the inner edge of the protective boot and to the inside of the protective boot (pic. 4.34).
Lubrication: Sunlight MB-2 or equivalent.
Pic. 4.35. Protective cover installation diagram
Using the special tool, install the protective cover in place and secure with the retaining ring (pic. 4.35).