Question about Scion xA

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How do I get the caliper to fit back over the new pads, those being obviously thicker because they are new. I can't figure out how to get the cylinder on the caliper compressed to fit over the new pads. My car is a 2007 Scion XA.

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The pistons on the rear brake calipers on many modern cars screw in and out unlike the front caliper pistons that just slide in and out.This is due to the handbrake using the rear calipers for handbrake operation. A special tool is normally required that screws the pistons back in so that you can fit the new pads. On many cars one side will be a left hand thread and the other a right hand thread. Some cars will be the same thread. These rear pistons will not just push in. Good luck.

Posted on Nov 07, 2010

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  • Scion Master
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Remove the new pads and put the inner pad back on then use a "C" clamp to drive the caliper piston back into the bore...THEN put everything back together and it will fit!!

Posted on Nov 07, 2010

  • Richard Scordino Nov 07, 2010

    Forgot about the rears and you didn't mention if one or the other...yup...there's an inexpensive multi tool that fits on a ratchet handle available at most parts stores that's made just for rears..

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Changing rear brakes on 2009 gold wing. replace outer pad and use screw driver to push pistons back. question, new pads much thicker than old worn out pads how do you open caliper so new pads fit


hi Ed.
It's nearly time to install the new brake pads. But there's one more step to complete before you can do that. You have to manually retract the caliper piston.
If you look at the inside of the caliper you'll see a cylindrical piston coming out -- this part pushes on the inboard side of the brake pad. You'll see that it has adjusted itself to match your worn-out pads, so you'll need to reset the piston to its original position before the caliper, along with your new (and thicker) brake pads, will fit over the rotor.

Before you reset the caliper piston, it's a good idea to remove the cap that covers the brake fluid reservoir. If you don't, you'll be fighting against a significant amount of brake fluid pressure.
Now that the reservoir cap is removed, this is the part where you'll need that C-clamp. Place the end with the screw on it against the piston. You can use a small piece of wood to protect the surface of the piston, if you choose. As you turn the screw, the clamp will increase the pressure on the piston. Keep tightening it until you're able to slip the new pads into the caliper and fit the caliper and the new pads over the brake rotor.
If you find that the piston isn't properly retracting, don't force it. You may have a caliper that's been designed with a piston that slowly turns as it extends. If that's the case, then you'll need a special tool to thread the piston back into the caliper. A brake caliper tool -- a tool specifically designed to retract this type of brake caliper piston -- is available for purchase at most auto parts stores. If you can't find one there, then you can order the tool online -- or if you're really lucky, maybe your neighbor will have one that you can borrow for the afternoon.
Once the brake caliper piston has been fully retracted, you can re-cap the brake fluid reservoir. It's not a good idea to leave the cap off of your brake fluid reservoir for any longer than is absolutely necessary. Debris or even water may find its way into your brake's hydraulic system. Brake fluid is hygroscopic, which means that it absorbs and retains water. Water in the brake lines leads to serious safety concerns and more complex repairs than the relatively simple pad replacement that you're finishing up with right now.
Installing the new brake pads themselves is just a simple matter of slipping the new pads into the slots where you found the old ones. If they don't easily fit in with your hands, you may want to tap them in gently with a hammer or rubber mallet. Then, replace the pins or bolts that held them in place and you're nearly done.
Next, move the caliper back into position on the brake rotor. Make sure it fits snugly, and tighten the bolts that hold the caliper in place. Make sure everything is back in place and then give the brake pedal a few pumps from inside your car just to make sure the pedal feels right to you. It may take several pumps of the pedal to get the brakes to properly seat themselves into their new position.
The rest of the brake repair is easy. Put the wheel back on, tighten the lug nuts, remove the jack stands and lower the car to the ground using your jack. It's just like changing a tire. Remember to fully tighten (and properly torque) the lug nuts once you have the vehicle back on the ground.
Also, don't forget to test drive the car to make sure that your brake work was successful. Fixing brakes is one thing; making sure they work properly is another.

if you need more info go to this link.
there is youtube videos showing you how to do it.

how do you open brake caliper so new pads fit Google Search

Nov 26, 2017 | Cars & Trucks

Tip

Cheap and easy way to collapse a caliper


When replacing disc brake pads it is always nescesary to collapse the caliper again as the piston that presses the pads against the rotor is protruding too far for the (thicker) new pads to fit. Using screwdrivers and such can damage the caliper, so there are several tools available for purchase. I just figured I'd make my own.
Refer to the diagram
Use a piece of flat bar(B), more or less 1 by 4 inches and about 3/8 inch thick. Find a bolt and nut(A) that fit to each other, let's say at least half inch thick and about 2 inches long. Drill a hole in the flat bar, big enough for the bolt to fit through, weld the nut over the hole and you're good to go.
When collapsing the caliper(5), assemble the newly made tool(just screw the bolt(3) into the nut) place the flat bar(2) against the piston(1), use an old pad(4) and fit it into the caliper (this is something for the bolt to push against), and uncrew the bolt until the piston has been pressed back into the caliper.

suzman_3.jpg

on Oct 18, 2010 | Isuzu Trooper Cars & Trucks

1 Answer

I cant seem to get the calipar back on the new pads


The new pads are much thicker than your old ones, so you need to get a large C-clamp, like a 5" clamp, open it up, put it over the caliper with the top of the clamp on the back of the caliper and with the screw adjustment of the clamp on the piston of the caliper. Tighten the clamp slowly and evenly, as you may have to move it from side to side of the piston to keep the piston even as it goes back into the caliper. Go back till it is flush with the caliper housing, then you can release the clamp, and the claiper will fit over the new pads. But now remember, you will have to pump the brake pedal several times when finished in order to close the piston back tight to the pads. This can be done with the car running or shut off. The pedal will feel soft and go right to the floor, but after you pump them several times, it will get hard again. Good Luck.

Jul 03, 2010 | 2001 Ford F150 Styleside SuperCrew

1 Answer

How to change front disc brake pads on 2000 Mazda Bravo B2500


jack up car, remove the road wheels, at the rear of the caliper you will have 2 or 3 bolts holding the caliper onto the stub axle, remove the bolts and remove the caliper, remove the outer pad, leave the inner pad in place and use a "G" clamp to compress the brake piston until it has bottomed, if this is not done the new pads will not fit back over the rotor as the piston is too far out and the new pads are thicker than the old ones.
place the new pads in the caliper and fit over the rotor, replace the 2 or 3 bolts that hold the caliper in place, replace the road wheel, tighten the nuts and lower the car to the ground, pump the brake pedal to see if you have brakes, if you do have brakes take it for a test drive away from any traffic if possible

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2 Answers

Change hyundai accent 2001 front brake pads


may have siezed caliper slide pins suggest buy reman loaded caliper assembly

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1 Answer

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If it is the rear, please take a good look at the brake pads. One is thicker than the other. You use a thick one and a thin one on each wheel. If you already knew this sorry but I thought ir might help.

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1 Answer

How to remove disc brakes for a 2001 hyundai accent


OK..Once you have the wheel off and you are looking at the brakes at the top of the caliper there is a bolt. This one bolt needs to be loosened and then removed. From there the caliper will swing up and off. Have something handy to hold the caliper out of the way so that it does not hang down. I have owned an "02" and an "05" There may be a bottom bolt on your caliper but if it is like the others you can remove the caliper with just the top bolt being removed. Then just take the outer brake pad out and replace it with the new one, and then do the same for the inner brake pad. Making sure that the new pad for the inside does have the sensor. From there using a "C clamp" put one end on the outside of the caliper and the other end on the inside and turn it so that the caliper will withdraw. This needs to be done so that the caliper will fit over the new brake pads which are thicker. Then just slide the caliper back into place, tighten the top bolt and put the wheel back on. Make sure and start the car and pump the brakes a few times so that the caliper will make contact with the new brake pads. From there you should be good to go.

Jun 06, 2009 | 2001 Hyundai Accent

2 Answers

How to change out front brake pads on a 2001 mazda 626?


remove 2 caliper bolts, remove old pads. put new pads in there place, before installing the caliper, be sure to squeeze the piston back in the caliper otherwise it will not fit back over the new pads. than replace the caliper and the 2 mounting bolts.

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3 Answers

Back brakes kia spectra 2007


Hi bead_crafts5,
My name is Dennis and I hope to be of assistance.
I have to assume that you are trying to get the piston to retract into the caliper while trying to put new pads on a disc brake. When the pads are worn down the piston is nearly out of the cylinder of the caliper and when you try to get the piston to go back into the caliper it can **** slightly in the bore of the caliper. Center a "C" clamp in the piston and carefully screw the clamp closed pushing the piston back into the bore. While this is taking place the brake fluid is being forced back int the master cylinder and the going will be slower than you think it should be. Just be aware that you are trying not **** the short stubby piston in it bore as you force it to retract to allow you to put the thicker pads in place.
Glad to be of assistance. Please rate the solution I can learn from your rating.
Thank you

Nov 09, 2008 | 2007 Kia Spectra LX Sedan

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