if it is the caliper at the rear u need the special tool to turn the piston clockwise to push in and counterclockwise to pull out
You will need special brake caliper tool such as a C-clamp to push back the piston on the caliper of a 2002 Mitsubishi Lancer.
Hydraulic force, transmitted by the brake fluid.
You have to have a air compressor to do it. Take an air gun and insert it in the hole on the caliper were the brake line goes to it. Then take the piston in one hand and start it in the caliper while you are blowing air into it and the air will push the rubber boot out around the piston as you push the piston in. It is alittle trickey, But that's how you do it.
Yes, you need to remove the caliper first, then use the old brake pad and a C clamp to push down the piston of the caliper.
There is a specialty tool for this procedure. There is a metal plate that fits on the piston, then a clamp for the back of the caliper. Turning a screw will pull in the caliper. Opening the bleeder valve may be necessary.
In most cases, no, however if you are having issues getting the piston into the caliper, it may be seized, or it may be a turn in caliper.
Use a "C" Clamp to fully retract the piston into the caliper body
You will need to push the caliper piston back as well as rotated when you are replacing your rear brake pads. The caliper will need to be turned clockwise.
They need to be wound back in, using a special tool, a G-clamp also work to push it back, with the rotating part on the caliper piston.
The teves caliper is a single piston disc brake caliper and the akebono caliper is a dual piston disc brake caliper. The teves caliper is a single piston disc brake caliper and the akebono caliper is a dual piston disc brake caliper.
the caliper needs a special tool. the piston does not push straight in. the spring needs to be released at the rear of the caliper. then using the special tool the piston twists back in to place
be sure to purcahse the tool to "screw" the caliper piston in. If you try to push the piston in on rear disc brakes you will damange the caliper.
If it has come out completely, lubricate the disc brake piston and the piston bore (in the caliper) with clean brake fluid. Make sure the dust boot is clean and is seated in the caliper. Using a turning motion (back & forth), roll the lip of the dust boot over the piston and push the piston into the caliper by hand as far as you can go. You'll need a c-clamp and a block of wood (or an old brake pad) so that you can push the piston all the way into the bore. Go slowly as you are pushing and keep an eye on the piston so that it goes in straight with no resistance. You don't want to damage the sides of the piston. If the piston goes to the bottom with no problem, seat the dust boot lip into the piston groove. You'll have to bleed the brakes once the pads are in and the caliper is reinstalled.
Use a 6 inch c-clamp.
If the piston has come out, the caliper will need replaced.
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.
There's a little screw on the side of the caliper with a whole in the top of it. Loosen that a little bit and you should just be able to push in the caliper. They make a tool which is basically a bar and a screw so the bar pushes on the mounting part of the caliper and the screw pushes on the caliper piston.
on a mazda3 rear caliper there are two dimples in the piston, you can use needle nose pliers to turn the piston while you push on it, or you can rent a caliper compression tool from a local auto parts store, if there is a harbor freight in your area you can buy the tool for around $20. using a c clamp will damage the caliper, it has to have pressure and rotation to be compressed
There is a special tool that one needs to accomplish this task. It turns the piston while pressing the same piston into the caliper body. Try www.germanautoparts.com to purchase same. Do not try to do it without this tool, you will damage the caliper and it will cost you $$$$$ to replace.
---- You have to turn it (caliper piston) as you are depressing the piston back into the caliper. You can't just "jam" it in. I used a caliper tool (for depressing the caliper) and turned the piston with large jaw pliers. This gives both inward pressure and the turning motion. I turned it clockwise and that seemed to work. There is a special tool you can buy to turn the piston as you push it back into the body of the caliper but if you work carefully and you are VERY aware of the rubber boot (don't rip it) then pliers are ok (don't tell the Ford dealer). Cover the pliers with something so you don't scratch/ruin the piston. The front brakes are just a standard push - don't need to turn them. Why do the back brakes work this way? Has to do with the parking brake. If you look you can see that it is attached to the caliper on the rear.
Use a C clamp to push the piston out of the way to remove and also to place back on rotor.
If you are wanting to colaspe the piston so you can fit new pads in the caliper, first open the master cylinder, then use a "c" clamp or "c" clamp vise grips to slowly push the piston back enough to place the pads in and then fit caliper over your rotor.Keep in mind there may be a mess at the master cylinder.
If you can't compress the piston with a C clamp back in to position to fit the new brake pads I would suggest replacing the caliper completely.
Have noticed that Ford still uses the screw style pistons on the rear calipers. To retract the piston use either a caliper/piston tool or a set of needle nose pliers. Turn the piston clockwise to get it back in but take note of the position of the grooves as they normally need to align so that a imaginary straight line through the grooves points to the center of the caliper.