Camaro V8-350 5.7L (1989)
Fig. 4 Removing Piston From Caliper
1.
Remove caliper as outlined above.
2.
Clean outside of caliper, then drain brake fluid from caliper.
3.
Use clean shop towels to pad interior of caliper assembly, then remove piston by directing compressed air into caliper brake hose inlet hole, Fig. 4.
Use just enough air pressure to ease piston out of bore. Do not place fingers in front of piston for any reason when applying compressed
air. This could result in serious personal injury.
4.
Carefully pry dust boot out of bore.
5.
Using a small piece of wood or plastic, remove piston seal from bore. Do not use a metal tool of any kind to remove seal as it may damage
bore.
6.
Remove bleeder valve.
7.
Inspect piston for scoring, nicks, corrosion, and wear and replace as needed.
8.
Inspect caliper housing and seal groove for corrosion, nicks, scoring and excessive wear, and use crocus cloth to polish away corrosion from
housing bore. Replace caliper housing if corrosion in and around seal groove will not clean up with crocus cloth.
9.
Clean all parts with denatured alcohol. Dry with unlubricated compressed air. Blow out all passages in housing and bleeder valve.
Caliper Assembly
Fig. 5 Installing Boot To Piston
Fig. 6 Installing Boot To Caliper
1.
Lubricate caliper piston bore and new piston seal with clean brake fluid. Position seal in bore groove. Ensure seal is not twisted.
2.
Lubricate piston with clean brake fluid and assemble a new boot into the groove in the piston so the fold faces the open end of the piston, Fig. 5.
3.
Using care not to unseat the seal, insert piston into bore and force the piston to the bottom of the bore.
4.
Position dust boot in caliper counterbore and install, using suitable seal installer, Fig. 6. Check the boot installation to be sure the retaining
ring molded into the boot is not bent and that the boot is installed below the caliper face and evenly all around. If the boot is not fully
installed, dirt and moisture may enter the bore and cause corrosion.
5.
Install the brake hose in the caliper using a new copper gasket.
6.
Install shoes and reinstall caliper assembly.
Caliper Installation
