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Re: ford fivehundredright rear brake caliper wont retract
Is this the ratcheting style caliper? If so, you really should be using the proper tool to turn these style calipers back into their bore, and both calipers should turn clockwise to retract them back in. Also, if the piston was too far out you may have a hard time getting it to go back in. Hope this helps.
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The rear caliper piston,turns in,with slight pressure on it,one side will turn right handed,to retract,and the other side will turn left handed to retract,the auto parts store sells the tool to do this with,it is a square tool,for sides,with different combinations of pins that will fit the caliper piston for your cadilac.The tool fits on a 3/8 ratchet,I hope this helps you,thank you.
The bolts pull out after being unscrewed Rock the caliper back and forth to release the pads and caliper assy. from the anchor assy. If you are removing the rotors to be cut then you have to remove the larger bolts holding the anchor bracket . TIP the piston on the the LEFT side is turned clockwise to collapse BUT the piston on the RIGHT side is turned COUNTER-CLOCKWISE
With rear brakes the caliper piston must screwed in. It usually has a parking brake mechanism that has to screw out as the pad wears down. When you install a new fat pad, the piston won't retract with normal pressure of a clamp but must be screwed back in on the parking brake screw. This can be done with a long nose pliers but tools are made just for the purpose. I hope this helps.
If its the front brakes you are working on and the piston won't retract into the caliper then you need a new caliper, or both actually. Calipers need to be replaced in pairs. If you are working on the rear then you need a special tool to turn the piston back into the caliper. you can get the rear disc brake tool at any auto parts store. Turn the piston clockwise to retract it, and pay attention to the little spots cut out of the piston that the tool grabs to turn it. They need to be at the top and bottom of the piston once you fully retract it or the little pin at the bottom of the inside brake pad wont sit against the piston. And once again if it still wont retract then you need to replace both calipers. Once you are finished you need to pump up the brake pedal and then pull up the parking brake lever and release it 10 to 20 times to adjust the piston.