Bearing catalog number 2121-3103020-10/6-2007108-A

We carry out the work on an inspection pit or lift. We hang up the front part of the car and remove the wheel.

How to replace the front wheel hub bearings of the VAZ-2121

We disconnect the caliper from the pad guide (see Disassembling the front brake mechanism) and tie them with wire to the upper arm.

We unscrew the adjusting nut of the hub bearings (see Checking and adjusting the clearance in the bearings hubs).

How to replace the front wheel hub bearings of a VAZ-2121

We take out the conical bushing.

How to replace the hub bearings of a VAZ-2121 front wheels VAZ-2121

Use a chisel to bend the edge of the locking plate of the nut of the front mount of the lever to the steering knuckle.

Similarly, we unlock the nut of the rear mount.

How to replace the front wheel hub bearings of the VAZ-2121

Use a 19 mm open-end wrench to unscrew the nut of the rear mount of the lever to the steering knuckle. Similarly, unscrew the front mount nut.

How to replace the front wheel hub bearings of a VAZ-2121

Remove the locking plate.

How to replace the front wheel hub bearings VAZ-2121

After removing the lever from the bolts, move it away from the steering knuckle.

Disconnect the brake hoses from the steering knuckle.

Disconnect the upper and lower ball joints from the levers (see Removing the upper ball joint, and Removing the lower ball joint).

How to replace the front wheel hub bearings VAZ-2121

From the splines of the outer joint housing of the front wheel drive, remove the steering knuckle assembly with ball joints, hub unit and brake disc.

How to replace the front wheel hub bearings of a VAZ-2121

Disconnect the steering knuckle and hub with the brake disc.

How to replace the front wheel hub bearings on a VAZ-2121

If you have difficulty separating the parts, clamp the steering knuckle in a vice and knock out the hub with a soft metal punch

How to replace the front wheel hub bearings on a VAZ-2121

Now you can remove the bolts that secure the lever to the steering knuckle

How to replace the front wheel hub bearings on a VAZ-2121

To separate the hub and the brake disc, screw the nut onto the stud and knock out the stud.

How to replace the front wheel hub bearings of a VAZ-2121

After unscrewing the nut, we take out the file. Similarly, we dismantle the other studs.

How to replace the front wheel hub bearings of a VAZ-2121

We separate the hub and the brake disc.

How to replace the front wheel hub bearings of the VAZ-2121

Use a chisel to knock off the mudguard ring.

How to replace the front wheel hub bearings of the VAZ-2121

Use a 10 mm wrench to loosen the protective cover mounting bolt

How to replace the front wheel hub bearings on a VAZ-2121

Remove the casing.

How to replace the front wheel hub bearings on a VAZ-2121

To remove the seals and hub bearings, clamp the steering knuckle in a vice.

How to replace the front wheel hub bearings on a VAZ-2121

Pry the seal with a screwdriver and remove it.

How to replace the front wheel hub bearings of the VAZ-2121

We take out the ring.

How to replace the front wheel hub bearings of the VAZ-2121

We take out the inner ring of the outer bearing with separator and rollers.

Also remove the oil seal, ring and inner ring of the other (inner) bearing with the separator and rollers.

How to replace the front wheel hub bearings of a VAZ-2121

We knock out the outer ring of the outer bearing with a punch and remove it.

How to replace the front wheel hub bearings of the VAZ-2121

Also knock out the outer ring of the inner bearing.

Assemble in the reverse order.

Before installing the bearings, clean the inner cavity of the steering knuckle from old grease.

How replace the front wheel hub bearings of the VAZ-2121

Using a suitable piece of pipe, press in the outer rings of the bearings.

Put 40 g of Litol-24 grease into the cavity of the steering knuckle and into the bearing separators.

How to replace the front wheel hub bearings of the VAZ-2121

Using a suitable piece of pipe, press in seals

How to replace the front wheel hub bearings of a VAZ-2121

After installing the mudguard ring, use a chisel to press the metal of the ring into the groove of the steering knuckle in several places.

How to replace the front wheel hub bearings of the VAZ-2121

Having connected the brake disc to the hub, we press in the studs with a soft metal punch.

How to replace the front wheel hub bearings of the VAZ-2121

The heads of the studs with a milled surface should be facing the cylindrical surface of the brake disc.

How to replace the front wheel hub bearings of a VAZ-2121

To prevent the bolts that secure the lever to the steering knuckle from falling out when installing it on the car, screw nuts onto them.

Having inserted the tail of the outer drive joint into the splines of the hub, mount the steering knuckle.

How to replace the front wheel hub bearings of a VAZ-2121

After assembly, adjust the clearance in the bearings (see Checking and adjusting the clearance in the hub bearings).