2008 Chevrolet Corvette Brake Service (ONLINE REPAIR MANUALS)

When troubleshooting the hydraulic brake system, perform the following inspections.

Master Cylinder Internal Fluid Leakage Check

Start engine and depress the brake pedal. If the pedal gradually falls under constant pressure, the hydraulic system may be leaking. Raise the vehicle on a lift and inspect all tubing lines and backing plates for signs of leakage. It may be required to lift or remove the carpeting or floor mats to inspect for boost...

Brake fluid is corrosive to painted surfaces. Care must be taken not to allow brake fluid to come in contact with painted surfaces on vehicle.

When bleeding the brake system, always bleed righthand rear wheel circuit first, followed by the lefthand front, lefthand rear and, finally, righthand front.

Manual

Pressure bleeding is recommended for all hydraulic systems. However, if a pressure bleeder is unavailable, use the following procedure. Brake fluid damages painted surfaces. Immediately clean any spilled fluid.

• Remove vacuum reserve by pumping brakes several times with engine o...

The front caliper consists of dual pistons and an aluminum housing which is suspended on the shoe and lining assemblies, Fig. . Hydraulic pressure, created by applying force to the brake pedal, acts equally against the pistons and the botto...

Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies, which use engine vacuum or in some cases vacuum pressure developed by an external vacuum pump. The second type is a hydraulic pressure assist mechanism, which use pressure developed by an external pump (usually the power steering pump). Both systems act to increase the force exerted on the master cylinder piston by the operator. This in turn increases the hydraulic pressure delivered to the wheel cylinders while decreasing driver effort required to obtain acceptable stopping performance.

Vacu...

Corvette

Removal

• Remove ^2/3 of total brake fluid capacity from master cylinder reservoir.
• Raise and support vehicle, then remove tire and wheel assembly.
• Install two wheel lug nuts to retain rotor in position.
• Position one end of suitable C-clamp against inlet fitting bolt and other end against outboard shoe and lining.
• Tighten clamp until piston fully bottoms in caliper bore, Fig. .
• Remove upper guide pin bolt and discard.
• Loosen lower guide pin bolt, then pivot caliper downward on lower guide pin bolt to expose shoe and lining assemblies.
• Remove shoes and linings from mounting bracke...

The most common cause of brake chatter on disc brakes is a variation in disc thickness. If roughness or vibration is encountered during highway operation or if pedal pulsation is experienced at low speeds, the disc may have excessive thickness variation. To inspect for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from edge of disc. If thickness me...