- Remove the caliper from the vehicle and place on a clean workbench.
- Open the bleeder screw and drain any remaining brake fluid from the caliper. Close the bleeder screw.
Stuff a shop towel or a block of wood into the caliper to catch the piston.
CAUTIONNEVER place your fingers in front of the pistons in an attempt to catch or protect the pistons when applying compressed air. This could result in personal injury!
Remove the caliper piston using compressed air applied into the brake hose inlet hole. Inspect the piston for scoring, nicks, corrosion and/or worn or damaged chrome plating. The piston must be replaced if any of these conditions are found.
Use a prytool to remove the caliper boot, being careful not to scratch the housing bore.
Remove the piston seal from the groove in the caliper bore.
- Remove the bleeder screw from the caliper.
- Inspect the caliper bores, pistons, and mounting threads for scoring or excessive wear.
- Use crocus cloth to polish out light corrosion from the piston and bore.
- Clean all parts with denatured alcohol and dry with compressed air.
- Install the bleeder screw in the caliper.
- Lubricate the new seal with new brake fluid and install it into the piston bore groove, making sure it is not twisted.
- Lubricate the piston bore with new brake fluid.
- Install the new boot on the piston.
- Install the piston into the bore of the caliper and push it to the bottom of the bore.
Use a suitable driving tool to seat the boot in the caliper.
- Install the caliper in the vehicle.
- Install the wheel and tire assembly, then carefully lower the vehicle.
- Properly bleed the brake system.