The condition of the belt tension rollers should always be checked when removing or replacing the drive belt

When rocking and rotating the rollers by hand, there should be no play, jamming, or noise in the roller bearings.

In many cases, noise from wear of the roller bearing is observed with the engine running.

We perform the work in an inspection pit or on a lift.

We remove the auxiliary drive belt. To do this:

Remove the engine compartment mudguards.

How to replace the VAZ-2123 drive rollers

Using a 13 mm socket, loosen the two bolts securing the tension roller bracket.

How replace the VAZ-2123 drive rollers

Using a 13 mm head, turn the adjusting bolt counterclockwise and loosen the belt.

How to replace the VAZ-2123 drive rollers

Remove the belt

How to replace the VAZ-2123 drive rollers

When installing the belt, keep in mind that when installing on the compressor pulley, the belt should be located closer to the inner edge of the pulley

How to replace the VAZ-2123 drive rollers

Use a flat screwdriver to pry off the protective cover of the tension roller bearing

How to replace the VAZ-2123 drive rollers

Remove the protective cover

How to replace the VAZ-2123 drive rollers

Using a 17 mm socket, unscrew the tension roller mounting nut

How to replace the VAZ-2123 drive rollers

Removing the roller from the bracket

How to replace the VAZ-2123 drive rollers

To remove the bracket itself, remove the spacer sleeve roller

How to replace the VAZ-2123 drive rollers

Removing the disc washer

How to replace the VAZ-2123 drive rollers

Using a 13 mm socket, unscrew the three nuts securing the bracket to the timing cover.

How to replace the VAZ-2123 drive rollers

Remove the bracket from the studs.

How to replace the VAZ-2123 drive rollers

Remove the roller axis from the hole in the bracket

Tension roller bracket fastening parts

To remove the support roller:

How replace the VAZ-2123 drive rollers

Pry off the roller protective cover with a screwdriver

How to replace the VAZ-2123 drive rollers

Remove it

How to replace the VAZ-2123 drive rollers

Using a 17 mm socket, loosen the roller mounting bolt

How to replace the VAZ-2123 drive rollers

Remove the roller

How to replace the VAZ-2123 drive rollers

Removing the disc washer

How to replace the VAZ-2123 drive rollers

Removing the bolt

How to replace the VAZ-2123 drive rollers

Removing the spacer sleeve

Installing the roller in the reverse order