Contents: Removal ⬇ Installation ⬇
Front lower suspension arm: 1 - nut and thrust washer; 2 - torsion; 3 - torsion bar lock; 4 - anti-roll bar link; 5 - shock absorber; 6 - lower ball joint; 7 - Front axle bolt; 8 - rear axle bolt; 9 - lower arm of the front suspension; 10 - bolt; 11 - bolt; 12 - Front lower arm bushing of the front suspension; 13 - rear bushing of the lower arm of the front suspension
Removal
Raise the vehicle and support it on supports.
Remove the front wheel.
Remove the lower engine compartment protection.
Remove the torsion bar (see the relevant chapter).
Loosen the nuts and disconnect the anti-roll bar links from the lower arms of the front suspension.
Remove the cotter pin, unscrew the nut and use a suitable puller to remove the lower ball joint from the steering knuckle.
Loosen the nut and remove the bolt that secures the shock absorber to the lower arm of the front suspension.
Mark the relative position of the torsion bar and the torsion bar retainer installed on the lower arm of the front suspension. Do not use a center punch or chisel to make marks.
Remove the bolts and torsion bar retainer from the lower front suspension arm.
Loosen the nuts and remove the axle bolts securing the front and rear bushings of the lower arm of the front suspension to the chassis.
Remove the front lower control arm from the vehicle.
[Original posted on the website OPELBOOK]
Installation
Install the lower arm, insert the axle bolts securing the front and rear bushings and screw the nuts onto them. Turn the lever so that the distance T to the stop is 22 mm, and tighten the front hub mounting nuts to a torque of 190 N·m and the rear hub mounting nuts to a torque of 235 N·m.
Install the torsion bar retainer onto the lower front suspension arm and secure with two bolts, tightening them to a torque of 116 N·m.
Install the lower ball joint onto the steering knuckle. Tighten the lower ball joint pin mounting nut to a torque of 147 N·m and turn it until the first alignment of the locking hole with the slot in the crown nut. Install a new cotter pin.
Install the lower part of the shock absorber onto the lower arm and secure with the bolt and nut, tightening them to a torque of 93 N·m.
Connect the anti-roll bar link to the lower arm of the front suspension and secure with a nut, tightening it to a torque of 50 N·m.
Install the torsion bar (see the relevant chapter).
Install the front wheel.
Install the lower engine compartment protection.
Lower the vehicle and check the front suspension ride height.
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