Remove caps 1, (see fig. 4-1), hubs 4 of the front wheels and loosen the adjusting nuts 2 of the hub bearings and the nuts of the front wheels.
Pic. 4-1. Front suspension:
1 - cap;
2 - nut;
3 - conical bushing;
4 - wheel hub;
5 - brake disc;
6 - stuffing box;
7 - outer bearing;
8 - ring;
9 - inner bearing;
10 - lower ball joint;
11 - stabilizer bushing;
12 - lower spring cup;
13 - front suspension spring;
14 - lower suspension arm;
15 - upper spring cup;
16 - spring gasket;
17 - compression buffer;
18 - cross member of the front suspension;
19 - stretching;
20 - a bolt of fastening of the top lever;
21 - adjusting washers;
22 - rebound stroke buffer;
23 - stabilizer;
24 - upper arm;
25 - bracket;
26 - rotary fist;
27 - shock absorber;
28 - protective cover of the front brake.
Jack up the car and remove the front wheels.
Turn away bolts of fastening of a brake board to a support of a brake of the right wheel.
Bend the edges of the protective casing and unscrew the bolts securing the caliper to the steering knuckle. Remove the protective cover and hang the caliper on the technological hook, avoiding tension on the brake hoses.
Turn away an adjusting nut of a nave and remove the conical plug 3. Remove a nave with a brake disk in gathering. The hub adjusting nut is discarded.
Unpin and disconnect the tie rod end from the steering knuckle arm.
Install a stand under the lower arm 14 of the front suspension and, lowering the car, compress the spring 13 of the suspension until the rebound buffer of the upper arm is unloaded.
Turn the steering knuckle to the extreme left (right) position and hang the shank of the outer joint of the drive from the cavity of the steering knuckle.
Unscrew the upper ball pin fastening nut, remove the guide bracket with the brake hose fastening bracket from the pin.
Install the tool and press the ball pin out of the mounting hole.
Loosen the nuts, remove the bolts securing the lower ball joint housing to the lower arm and remove the steering knuckle with bearings and lower ball joint assembly.
Remove oil seals, dismantling and inner rings of bearings from the cavity of the steering knuckle. Mark the inner rings of the bearings with paint in order to install them in their original places. The hub seals are discarded.
Clean the shank of the outer joint of the wheel drive and the inner cavity of the steering knuckle from the old grease.
Clean and blow compressed air through the wheel hub, roller bearing inner races and dismounting races.
Inspect the steering knuckle, disc hub, bearings and dismounting rings. Not allowed: cracks in parts, chipping of rollers and bearing raceways. Replace the parts if they are found to be defective.
Lay grease in the bearing cages, apply it evenly into the cavity of the steering knuckle, lubricate the splines of the shank of the outer joint of the wheel drive.
Install the inner rings of the bearings in the cavity of the steering knuckle according to the marks, install the dismantling rings and press in the oil seals 6.
Install the steering knuckle 26, hub and front brake caliper in the reverse order of disassembly. Tightening torques for threaded connections:
- nut securing the upper ball pin to the steering knuckle - 85.105 Nm (8.5...10.5 kgf·m);
- nuts of bolts for fastening the ball joint to the lower suspension arm - 22... 26 Nm (2.2...2.6 kgf·m);
- brake caliper bolts to the steering knuckle - 30.35 Nm (3.0...3.5 kgf·m);
- tie rod ball nut - 44.54 Nm (from 4.4 to 5.4 kgf·m).
Adjust the axial clearances in the front wheel hub bearings following the recommendations set out in subsection «Checking and adjusting the clearance in the front wheel hub bearings».
Install the hub cap, wheel and tighten without tightening the wheel nuts.
Repeat the above operations for the left front wheel hub.
Lower the vehicle and tighten the wheel nuts. Nut tightening torque 85 to 95 Nm (from 8.5 to 9.5 kgf·m).
Check and, if necessary, adjust the angles of the front wheels, following the recommendations outlined in subsection «Checking and adjusting the angles of the front wheels».
Note. Whenever a nut looses from the outer pivot housing shank, replace it with a new one or use a nut removed from another vehicle.