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, roller bearing wear noise is observed when the engine is running.

We perform work on a viewing hole or on a lift.

Remove the accessory drive belt. For this:

Remove the mudguards of the engine compartment.

How to replace VAZ-2123 drive belt rollers

Using a 13 head, loosen the two bolts securing the tension roller bracket

How to replace VAZ-2123 drive belt rollers

Turn the adjusting bolt counterclockwise with a 13 head and loosen the belt.

How to replace VAZ-2123 drive belt rollers

Remove the belt

How to replace VAZ-2123 drive belt rollers

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

How to replace VAZ-2123 drive belt rollers

We pry off the protective cover of the tension roller bearing with a flat screwdriver

How to replace VAZ-2123 drive belt rollers

Remove the protective cover

How to replace VAZ-2123 drive belt rollers

With a head of 17, we unscrew the tension roller fastening nut

How to replace VAZ-2123 drive belt rollers

Remove the roller from the bracket

How to replace VAZ-2123 drive belt rollers

To remove the bracket itself, remove the roller spacer

How to replace VAZ-2123 drive belt rollers

Removing the Belleville Washer

How to replace VAZ-2123 drive belt rollers

With a 13 head, we unscrew the three nuts securing the bracket to the cover of the gas distribution mechanism

How to replace VAZ-2123 drive belt rollers

Remove the bracket from the studs

How to replace VAZ-2123 drive belt rollers

Remove the roller axle from the hole in the bracket

Idler bracket attachment details

To remove the support roller:

How to replace VAZ-2123 drive belt rollers

Pry off the protective cover of the roller with a screwdriver

How to replace VAZ-2123 drive belt rollers

Remove it

How to replace VAZ-2123 drive belt rollers

With a head of 17, we unscrew the roller mounting bolt

How to replace VAZ-2123 drive belt rollers

Shooting a video

How to replace VAZ-2123 drive belt rollers

Remove the Belleville Washer

How to replace VAZ-2123 drive belt rollers

Remove the bolt

How to replace VAZ-2123 drive belt rollers

Removing the spacer

Install the roller in reverse order