The clearance between the pusher and the master cylinder piston should be 0.1–0.5 mm, which corresponds to a free travel of the clutch pedal of 0.4–2 mm. This clearance is adjusted by the pedal travel limiting screw.
The gap (2 mm) between the clutch release bearing and the friction ring of the thrust flange is determined by the amount of free travel (4–5 mm) of the slave cylinder pusher.
This gap can be checked on an inspection pit or lift as follows.
Press the clutch release fork, resting your finger on the slave cylinder pusher. The fork movement relative to the pusher should be 4–5 mm.
In case you need to adjust the gap...
...we loosen the lock nut with 13 and 17 keys...
The article is taken from the website: VAZbook
...and, holding the pusher with an 8 mm wrench, we adjust its free travel by turning the adjusting nut.
After all adjustments have been made, the free travel of the clutch pedal before the clutch begins to disengage should be 25–35 mm.