Description

The hydraulic pressure exerted via the brake pedal is transmitted through the brake line and hose to push the wheel cylinders outward. The wheel cylinders push the brake shoes against the brake drum, causing the vehicle to slow down.

To be able to bleed the brake system, a bleeder screw is installed on the wheel cylinder, which is protected from corrosion by a cap.

How to recognize a faulty wheel cylinder?
A faulty wheel cylinder is usually identified by brake fluid leakage or if one or two pistons are stuck in the cylinder due to corrosion (rust). If caught early, only the dust cover is often filled with brake fluid. If not caught in time and the entire inside of the brake drum is greasy, it is advisable to also replace the brake lining. The brake lining acts like a sponge, absorbing brake fluid and negatively affecting braking performance permanently.

A downside of the often fragile bleeder screws is that they can break off, necessitating complete replacement of the wheel cylinder.

Bore: 22.2 mm