Centric Brake Hydraulics at Buybrakes.com
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Centric Brake Hydraulics

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Centric Power Brake Boosters

  • Starting at $104.03

Centric Brake Master Cylinder

  • Starting at $16.39
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Frequently Asked Questions About Master Cylinders

Brake hydraulics are the force behind the brake system. Without hydraulics, no modern braking system will work.

All components in a brake system are involved including brake calipers, brake pads, brake lines, and brake rotors. These components act on the basis of hydraulic principles, too. Hydraulic processing operates on force from one point to one or more secondary points where subordinate mechanisms are activated by non-compressible fluid transfer. Specialized brake fluid is pulled from a pressure-driven master brake cylinder through brake lines to subordinate slave cylinders located at each brake housing. Next, fluid is pushed from the slave cylinder to individual brake calipers. These components house and activate internal pistons which ultimately drive brake pads against each brake rotor. Incompressible flow (isochoric flow) relates to a fluid volume that maintains a common density under pressure.

The hydraulic brake system is simple in mechanical terms: applied pressure differentials are significant and easily measured by the driver.

It is rare for a consumer auto braking system not to use hydraulics to control the speed of a car. There are hydraulic systems such as vacuum, electromagnetic, and air brake systems, but in the auto performance brake systems, you'll find hydraulics.

Most consumer car hydraulic systems don’t call for regular maintenance schedules. However, when investigating brake pads, brake calipers, and brake rotors, take a look at the stability of the hydraulic system at large. This means feeling differences in pedal pressures; leaks associated with fittings and brake lines adjacent to brake housings; or obvious drops in fluid levels when opening the master cylinder storage vessel.

Unless you have a fully-equipped shop with requisite tools, it is best to have an experienced mechanic deal with problems in your hydraulic system

While hydraulics are similar in form and function between consumer and performance cars, there are some differences. Performance systems usually have more or bigger components, including larger master cylinders and supporting components, the addition of more slave cylinders, and the use of exotic materials.

In the event of complete hydraulic collapse, the brake system will exhibit no pressure at the pedal and fail to activate the brakes. This is sometimes called "long pedal." Since a brake hydraulic system is sealed in order to maintain average system pressure, an extended pedal stroke suggests that pressure has dropped, either through the introduction of ambient air, and/or the loss of fluid volume.

Since hydraulic brake systems operate on sealed components, activated under pressure, any leakage from a component suggests some kind of hydraulic failure.