Brake Pads and Rotors
Oldsmobile Cutlass Supreme
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What size is the hex nut to remove the caliper on the front disc brakes of a 88 Oldsmoblie Cutlass Supreme Clasic Broucham?

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2006-12-02 14:41:16
2006-12-02 14:41:16

It should be 3/8" if it's a hex, or T-50 if it's a star (Torx).

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Use a "C" Clamp to fully retract the piston into the caliper body

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The rear piston has to be turned in, it won't just push in, they make a tool at the parts store that makes it easier, if you have tried turning it in and it won't go you will have to replace the caliper as it's bad.

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what i would do is get some wd40 a pry bar and pry tht sucker right off.(you may need a new rotor after that or at least resurface yours)

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Once the caliper is off then the rotor should come off. If not take a hammer and beat on the rotor. Then it will either come off or crack and come off. If that does not get it off you would have to heat it with a torch.

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AnswerThere is not enough information in your question. A cylinder piston you do not compress, you compress the rings in the piston. There are pistons in the brake system. There is no way of knowing the problem without being more specific.I'm assuming you mean the caliper piston. If it can't be compressed, replace the caliper.

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You need to remove the caliper. Usually there are 2 bolts/pins that go through the calipers, holding them in place. Once the calipers are off, the rotors should come off quite easily. If it's a front wheel vehicle, the rotor should just pull off. If it's a rear wheel vehicle, the rotor is often integral to the wheel bearing and hub. For a rear wheel caliper, just pull the center wheel bearing cotter pin, nut, remove the wheel bearings and pull the rotor.

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The caliper bolts are located in the caliper... You should see two bolts on the inside of the caliper...

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they must be screwed in because the e=brake is built into caliper. there is a tool kit that uses the grooves on piston but you can use channel lock pliers to turn piston don't chew up dust seal around piston .the right side is clockwise to turn in i think the left is ccw to turn in when piston starts moving in you going the right way. make sure you line the slots on the piston with the pins on the brake pads if not lined up you never get caliper on good luck ps when all done pump and release the e brake 20 time to self adjust the pistons


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