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2003 Chevrolet Corvette Restoration Kit
When brake system input force is applied, air at atmospheric pressure is admitted to the rear of both
vacuum diaphragms, providing a decrease in brake pedal effort required. When input force is
removed, vacuum replaces atmospheric pressure within the booster.
Vacuum Source
Supplies force used by vacuum brake booster to decrease brake pedal effort.
Vacuum Source
Delivery System
Enables delivery and retention of source vacuum for vacuum brake booster.
System Operation
Brake system input force is multiplied by the brake pedal and transferred by the pedal pushrod to the
hydraulic brake master cylinder. Effort required to apply the brake system is reduced by the vacuum
brake booster.
Disc Brake System Description and Operation
System Component Description
The disc brake system consists of the following components:
Disc Brake Pads
Applies mechanical output force from the hydraulic brake calipers to friction
~urfaces
of brake rotors.
Disc Brake Rotors
Uses mechanical output force applied to friction surfaces from the disc brake pads to slow speed of
tire and wheel assembly rotation.
Disc Brake Pad Hardware
Secures disc brake pads firmly in proper relationship to the hydraulic brake calipers. Enables a sliding
motion of brake pads when mechanical output force is applied.
Disc Brake Caliper Hardware
Provides mounting for hydraulic brake caliper and secures the caliper firmly in proper relationship to
caliper bracket. Enables a sliding motion of the brake caliper to the brake pads when mechanical
output force is applied.
System Operation
Mechanical output force is applied from the hydraulic brake caliper pistons to the inner brake pads. As the
pistons press the inner brake pads outward, the caliper housings draw the outer brake pads inward. This
allows the output force to be equally distributed. The brake pads apply the output force to the friction
surfaces on both sides of the brake rotors, which slows the rotation of the tire and wheel assemblies. The
correct function of both the brake pad and brake caliper hardware is essential for even distribution of
braking force.
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