The brake master cylinder is a vital component of your car's braking system. It is responsible for converting the force you apply to the brake pedal into hydraulic pressure, which is then used to apply the brakes at each wheel.
The master cylinder is a hydraulic cylinder that contains
two pistons. When you press the brake pedal, the pistons move and create
hydraulic pressure. This pressure is then transmitted through the brake lines
to the wheel cylinders, which apply the brakes.
There are two types of brake master cylinders:
single-circuit and dual-circuit. Single-circuit master cylinders have a single
piston and a single brake line that runs to all four wheels. Dual-circuit
master cylinders have two pistons and two brake lines, one for the front wheels
and one for the rear wheels. This design helps to ensure that if one circuit
fails, the other circuit will still work.
The brake master cylinder is a sealed unit that contains
brake fluid. The brake fluid helps to lubricate the pistons and prevent them
from corroding. It also helps to transmit the hydraulic pressure efficiently.
Over time, the brake master cylinder can wear out and fail.
If you notice any of the following signs, it's time to have your brake master
cylinder checked: the brake pedal feels spongy or soft, brake pedal takes more
effort to press, the brakes don't seem to be as effective as they used to be or
if there is a leak in the brake lines.
If your brake master cylinder fails, you will lose all braking power. This is a very dangerous situation, so it's important to have the master cylinder replaced as soon as possible.