Inspection

1. Clean all caliper components in alcohol or other suitable solvent and wipe dry. Ensure bores and drilled passages are cleaned thoroughly.
2. Inspect piston bore for scoring or pitting. Crocus cloth may be used to remove minor scratches or corrosion.
3. If piston bore exhibits deep scratches or severe scoring, use caliper honing tool No. C-4095, or equivalent, to hone caliper bore. Do not increase bore diameter more than 0.001 inch.
4. If caliper piston bore is to be honed, honing tool stones and piston bore should be coated with clean brake fluid, and honing should be followed by cleaning with a stiff, non-metallic rotary brush.
5. If scoring and scratches cannot be removed without increasing piston bore beyond the specified limit, caliper must be replaced.
6. Replace caliper piston if scored or pitted.