We remove the front suspension arms for replacement, as well as for repair
Preparing the car for the task
Removing and installing the front suspension lower control arm
Remove the front wheel from the side of the work being done
We loosen the ball joint nuts, but do not unscrew them completely
Using a puller, we squeeze the ball joint pin out of the lower arm socket
Remove the ball joint
Unscrew the bolt securing the fork to the lower arm socket
Disconnect the stabilizer link from the lower arm
We unscrew the two bolts securing the bushing of the lower arm "A"
We unscrew the bolt securing the bushing of the lower arm "G"
Removing the steering gear
Remove the anti-roll bar
Installation
Set the stabilizer rod so that the distance "A" is equal to the standard value
Standard value "A" = 3-5 mm
Next, installation is performed in reverse order
Disassembly of the lower arm
Remove the connector from the lower arm
Using a press, remove the shock absorber mounting sleeve
Using a press, remove the lower arm bushing
Checking the lower arm
Checking the bushing for wear and deterioration
Checking the lower arm for bending or damage
Check the ball joint dust cover for cracks
Checking the condition of all bolts
Check the torque required to rotate the lower arm ball joint trunnion.
If there are cracks in the protective boot, replace it and add grease to the hinge.
Move the lower arm ball joint trunnion side to side a few times.
Measure the torque required to turn the lower arm ball joint trunnion.
Torque: 0.1 - 0.4 Nm
If torque is below tolerance, replace ball joint.
If the torque exceeds the allowable values, the ball joint can be reused if the torque value does not exceed 1.5 Nm.
Check the torque required to rotate the stabilizer link ball joint pin.
If there are cracks in the protective boot, replace it and add grease to the hinge.
Move the stabilizer link ball joint trunnion side to side a few times.
Screw a self-locking nut onto the ball joint trunnion and then measure the torque required to turn the ball joint trunnion.
Torque: 1.7 - 3.2 Nm
If the torque is too high, replace the stabilizer link.
If the torque is significantly below the allowable value, the ball joint can be reused if it does not jam and does not have excessive play.
Lower arm assembly
Using a press and suitable nozzles, we press in the shock absorber mounting sleeve
Locate the bushing of the lower arm "G" at the angle indicated in the figure
We press in the bushing of the lower arm
Install the connector on the lower arm
Removing, checking and installing the front suspension upper arm
We prepare the car for the task and remove the front wheel from the side of the work being performed
We loosen the ball joint nuts, but do not unscrew them completely
Using a puller, we squeeze the pin of the ball joint out of the socket of the upper arm
We unscrew the two nuts securing the upper arm of the front suspension
Remove the upper arm of the front suspension
Installation is carried out in reverse order
Checking the upper arm
Check the bushing for wear and deterioration.
Check the upper arm for bending or breakage.
Check the torque required to rotate the upper arm ball joint trunnion.
If there are cracks in the protective boot, replace it and add grease to the hinge.
Move the lower arm ball joint trunnion side to side a few times.
Screw a self-locking nut onto the ball joint trunnion and then measure the torque required to turn the ball joint trunnion.
Torque: 1.5 - 2.5 Nm
If the torque is too high, replace the ball joint.
If the torque is significantly below the allowable value, the ball joint can be reused if it does not jam and does not have excessive play.