Caravan AWD V6-201 3.3L (1991)
Honing Brake Caliper Piston Bore
Inspect the piston bore for scoring or pitting
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Bores that show light scratches or corrosion, can usually be cleared with crocus cloth.
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Bores that have deep scratches or scoring should be honed, providing the diameter of the bore is not increased more than 0.0254 mm (0.001
inch).
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If the bore does not clean up within this specification, a new caliper housing should be installed. Install a new piston if the old one is pitted or
scored.
When using a hone:
Coat the stones and bore with brake fluid. After honing the bore, carefully clean the seal and boot grooves with a stiff nonmetallic rotary brush.
Use extreme care in cleaning the caliper after honing. Remove all dirt and grit by flushing the caliper with brake fluid; wipe dry with a clean,
lintless cloth and then clean a second time.
ASSEMBLING CALIPER
1. Clamp caliper in vise with protector jaws.
CAUTION: Excessive vise pressure will cause bore distortion and binding of piston.
Installing New Piston Seal In Caliper
2. Dip new piston seal in clean brake fluid and install in groove in bore. Seal should be positioned at one area in groove and gently worked around
the groove, using fingers until properly seated.
CAUTION: NEVER USE AN OLD PISTON SEAL. (Be sure that fingers are clean and seal is not twisted or rolled).
3. Coat new piston boot with clean brake fluid leaving a generous amount inside of boot.
4. Position dust boot over piston after coating with brake fluid.