2006 Chevrolet Corvette Brake Master Cylinder

In this situation, you should clean the outside of the reservoir on and around the reservoir cap before removing the cap and diaphragm. Use only Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.

You should use only Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.

You need to remove the master cylinder, secure the master cylinder in a vise, remove the brake fluid level sensor, tap out the reservoir retaining pins, remove the reservoir from the master cylinder by pulling the reservoir straight up and away from the cylinder, and remove the seals from the master cylinder.

The procedure is to remove the brake master cylinder, secure the mounting flange of the brake master cylinder in a bench vise, clean the outside of the master cylinder reservoir on and around the reservoir cap, remove the reservoir cap and diaphragm from the reservoir, inspect the reservoir cap and diaphragm for cuts or cracks, nicks or deformation, remove the master cylinder reservoir from the master cylinder, depress the primary piston and remove the piston retainer, remove the primary piston assembly, plug the cylinder inlet ports and the rear outlet port, and discard the primary piston assembly, the piston retainer, and the seals and seal retainer from the secondary piston.

You need to disconnect the electrical connector from the brake fluid level sensor, disconnect the brake pipes from the master cylinder, plug the open brake pipe ends, remove the master cylinder mounting nuts, remove the master cylinder, and drain the master cylinder reservoir of all brake fluid.