Brake Caliper Piston
Replacement Brake Caliper Piston
Brake caliper diagnosis
One of the most important parts of the brake caliper is the brake caliper piston. When the brake caliper piston cannot retract, it means that the brake caliper is bad. There must be a small gap between the rotor and the brake lining to allow the wheel to rotate freely.
Brake calipers are divided into vernier calipers and buoy calipers. Most vehicles are equipped with a piston buoy-caliper assembly to coordinate axle movement. But high-end cars use vernier calipers that connect to the knuckle and spindle. When using vernier calipers, remember that the pistons align the brake pads to the disc rotor on both sides
Brake pad groping determines the brake caliper situation. If the inside pad is more worn than the outside pad, it will trap the floating caliper and cause the brake pads to drag on the rotor regardless of the caliper type when the caliper is in the maintenance hole.
Remove the piston of the brake caliper.
It is a difficult job to remove the piston of the brake calipers. The best way is to base the piston with the universal C-clamp, push out the excess liquid, and then slowly apply pressure through the brake hose port. At this time, loosen the C-clamp screw and loosen the piston from the hole
When the caliper piston is ready to exit the hole, cover the caliper assembly with a towel to prevent liquid splashing and replace the calipers if they cannot remove