Brake Caliper: Testing and Inspection

CLEANING AND INSPECTION
1. Clean all metal parts with isopropyl alcohol. Then, clean out and dry the grooves and passageways with compressed air. Make sure that disc brake caliper bore and component parts are thoroughly clean.
2. Check cylinder bore and caliper piston for damage or excessive wear. Replace the caliper piston if it is pitted, scored, corroded or the plating is worn off.
3. Visually check disc brake caliper. If caliper housing is leaking, it should be replaced. If caliper piston is seized in the bore, a new disc brake caliper is required.
4. Inspect locating pin boots in disc brake caliper anchor plate to make sure they are sealed in groove. Replace damaged boots. Locating pin boots that are not properly sealed may cause disc brake caliper locating pins to corrode and brakes to drag.