this should be the same caliper as the cronos, mx 6 and eunos 500. Behind the caliper there should be two 14mm bolt look for the one directly behind that piston,remove that bolt and usin a 4mm Allen key in that space you could adjust that piston. that should work!
You need to turn the piston clockwise and it will slowly retract as you turn.
The caliper piston may not retract properly due to a lack of lubrication, a damaged seal, or air trapped in the brake system.
Use a "C" clamp to fully retract piston into caliper body
Clockwise to retract piston into caliper body
Rotor "Out of Round" when rotating "High" spot will cause piston to retract into caliper body
Rotor "Out of Round" when rotating "High" spot will cause piston to retract into caliper body
Use a "C" Clamp to fully retract the piston into the caliper body
You cant, it needs a 'C' clamp.
To retract a caliper, first, ensure the brake system is depressurized if you're working on a brake caliper. Use a caliper tool or a C-clamp to gently push the piston back into the caliper housing. If the caliper has a screw-type mechanism, turn the screw clockwise until the piston is fully retracted. Once retracted, check for smooth movement and reassemble any components as needed.
There is a 14 mm bolt on back of caliper. Remove this & use a 4 mm Allen wrench to back piston into caliper.
If it is the front brake use a "C" clamp to retract piston If it is the rear and the parking brake is used by this caliper piston is threaded and a special tool (not expensive) available at Sears or auto parts to "screw" piston into caliper body
To retract the rear caliper on a 2006 Hyundai Tiburon, you'll need a brake caliper tool or a C-clamp. First, remove the caliper from the bracket by unscrewing the bolts. Then, using the tool, rotate the caliper piston clockwise to retract it fully into the caliper housing. Once retracted, you can reinstall the caliper over the new brake pads.