Car Hydraulics

Brake Master Cylinders

Brake Master Cylinders vary in design and function. They can be either single circuit to dual circuit. Some incorporate the proportioning valve while others do not. Reservoirs can be attached or mounted separately. Bore sizes change depending on the car manufacturer.

Access to the brake master cylinder can be very restricted. That is why to fit and bleed a brake master cylinder, you should allow anywhere from 1 hour to 3 hours.

Clutch Master Cylinders

Clutch Master Cylinders are generally quite simple using a single circuit with varying bore sizes to operate the clutch slave cylinder.

Access to the clutch master cylinder can be very restricted. That is why to fit and bleed a clutch master cylinder, you should allow anywhere from 1 hour to 3 hours.

Clutch Slave Cylinders

There are two types of Clutch slave cylinders. They can be internal or external to the gear box. Clutch slave cylinders external to the gear box are most common. These are generally smaller and cheaper. Clutch slave cylinders inside the gear box are concentric making them more complex and more expensive.

Your Brake specialist at B & R Brakes will be able to advise you which type is applicable to your car.

The time you should allow to fit a new clutch slave cylinder is anywhere from 30minutes (for external) to 7hours (for internal).

Wheel Cylinders (Rear and Front)

Wheel cylinders for common vehicles are a low investment and are generally small in size. Wheel cylinders for import vehicles usually have a unique shape and size and your investment will be higher. Construction consists of pistons and seals operated via the brake master cylinder.

B & R Brakes have in stock the PBR, Protex and IBS brand wheel cylinders.

The time to replace a wheel cylinder and bleed air out of the system is model specific. Generally, you would allow between 45 minutes to 1.5 hours.