The clutch of a car is a unit that has a very important function - it provides a soft and painless gear change for the car.

The task of the clutch is to transfer torque from the engine to the transmission, to disconnect the transmission from the running engine for the time it takes for the driver to engage the desired gear in the gearbox, and to ensure a smooth connection of the transmission back to the engine. One of the main parts of the clutch is the clutch master cylinder.

1. COROLLA Liftback (_E8_)
2. COROLLA (_E8_)
3. COROLLA Saloon (_E8_)
4. COROLLA Coupe (AE86)
5. COROLLA SPRINTER Coupe (AE86)
6. COROLLA FX Compact (E8B)
7. COROLLA Coupe (_E9_)
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The principle of the clutch master cylinder work

The VALEO brand Master Cylinder, clutch generates and controls line pressure between the master and slave cylinder, which is then converted by the clutch slave cylinder into sufficient mechanical force on the clutch fork to disengage the clutch (disengaging the discs).

This simple set of parts assembled into a single unit controls the brake fluid pressure in the clutch hydraulic system and at the right time transfers this pressure to the clutch slave cylinder, which in turn creates a mechanical force on the pusher, then on the fork, and then on the clutch release bearing.