What is a Wheel Cylinder?

A Wheel Cylinder is an instrument that pushed the brake shoes against the drums causing the car to stop. The wheel cylinder operated from a hydraulic system and used in conjunction with internal pistons and pushes the shoes out against the drums.

How does a Wheel Cylinder Work?

There are two pistons located inside a wheel cylinder. There is a cup shaped rubber seal that is inside the cylinder. The job of the seal is to keep the pressure and stop brake fluid from leaking in the piston. As the driver of the car steps on the brakes the hydraulics from the master cylinder5 exert pressure and pushes the pistons inside the wheel cylinder toward the brake shoes so that they can be applied to the brakes. A leaking wheel cylinder is a dangerous thing. What happens when cylinder leaks there is not enough hydraulic pressure to cause the brakes to stop.

Which is better New or Rebuilt?

Many people buy rebuilt parts when they change certain car parts. Sometimes the warranty is better and they are cheaper. Experts say that even though all auto stores offer rebuilt parts that sometimes it is better to go with new. The reason being that rebuilt parts bring an added risk of a problem if they are not installed properly. In some cases depending on how much damaged is done to the original part will determine if the part can be replaced.

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