Question about 1987 Nissan Pickup

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The brake caliper is clos.ed and does not open. The caliper is new

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Calipers are shipped from the factory with the piston fully depressed. If yours was not, either someone did not do that or someone else bought and returned it that way.
Providing that the piston has not popped out of its bore, you should be able to retract it using a large "C" clamp. It's best to place an old brake pad on the piston to protect it from damage while doing that. If you have it connected to the rubber brake line and it will not retract, open the bleeder valve on the caliper. If it then retracts, likely the rubber hose has an internal problem and needs to be replaced.
If your original problem before you replaced the caliper was premature wear on that brake, I'd suspect that hose is at fault.
Always bleed the system after replacing any caliper, line, or other hydraulic component.

Posted on Jul 09, 2010

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  • Nissan Master
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Have you tried opening the bleeder screw? Is it on the car?
It's unlikely that the caliper is bad if it is new. So, it might be a restriction in the hydraulic line leading to the new caliper.

Posted on Jul 09, 2010

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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

1 Answer

Replace rear brake discs and pads


Depending on vehicle. Find level ground and park there. Put chocks in front and behind wheels not being lifted. Loosen lugs, jack up vehicle, set jack stands, lower vehicle on jack stands, remove lugs and wheel. Open hood remove brake fluid cap. Remove two bolts holding caliper, pull caliper off rotor disc and bracket, remove pads, place a used pad in front of caliper piston, use a c clamp to push caliper piston in caliper, remove c clamp and old pad, hang caliper up, remove 2 bolts holding caliper bracket, remove bracket, remove rotor, install new rotor, install caliper bracket, install new pads, install caliper, repeat this on other side, put cap back on brake fluid tank, remove bleeder fittings and keep pressing brake pedal until an even flow of brake fluid sprays out. Install bleeder fitting. Make sure brake fluid doesnt get on paint and is contained and disposed of correctly, top off fluid install wheels and raise car up remove jack stands, lower car and break in new pads

Nov 06, 2013 | Cars & Trucks

1 Answer

How to change rear brakes on a 1997 mercury sable


Replace caliper with old brake pads put 1 bolt in place to hold together while taking a large screwdriver and prying caliper piston so that it compresses piston & block wedge to rear of bracket it should make enough room to install on new brake pads, the other way is to use a large c clamp put 1/4 pice of wood in between c clamp and caliper so you don't damage or Mar the caliper also check YouTube.

Mar 03, 2018 | 1997 Mercury Sable

1 Answer

How to put rear brakes on


Remove the caliper mounting bolts and remove the caliper. Replace brake pads as necessary. Special tool is required to retract caliper piston to fit over new pads. (see picture below)
Retract piston in caliper using special tool to rotate clockwise and make sure the notch in the piston is aligned properly so the tab on the inner pad will fit in properly.
Reinstall caliper assembly and caliper mounting bolts.


5_28_2012_9_32_09_am.jpg

May 28, 2012 | 1997 Honda Accord

1 Answer

Best way of replacing a caliper on 1999 dodge durango


jack the truck up , secure it so it can not fall down or roll away etc.
remove the wheel.
remove used caliper,
secure the used caliper to the strut spring with a wire or coat hanger..

hang the new caliper on the rotor.
remove the brake hose to the used caliper and apply to the new caliper.

Make sure brake fluid is full and cap is off of the master cyl. reservior.
open the bleader valve on the new caliper and let it gravity feed the fluid until full/overflowing.
place the brake pads on the new caliper and replace the caliper securely on the truck and replace the wheel.

bleed the brakes of any air.

Nov 28, 2011 | 1999 Dodge Durango

1 Answer

Brake caliber installation


raise up the car....pull the wheels...take a 3/8 hex bit socket an loosen the to caliper bolts ...gently clamp off the rubber brake line going to the caliper an remove the 11mm bolt that holds on the brake hose to the caliper...pull off the caliper....install the brake pads on the new caliper place the caliper back on to the car an then attach the brake hose using new copper crush washers that came with the caliper.....then bleed the brake system...pump the brakes slowly 5 times an hold the brake pedal while someone opens the small silver bleeder on top of the caliper..when the bleeder is open the brake pedal will go down but only push the brake petal about 2 inches, close the bleeder before u take ur foot off the brake pedal...repeat this 5 times to remove the air from the system....an make sure u dont run the brake master cylinder dry when bleeding it.....

Jul 16, 2011 | 1993 Buick Century

1 Answer

How can I change the rotors and brakes on a 2006 Cadillac?


Front brake
Step 1: Identify Front Disc Brake Components
brake_pads_rotor.jpg
Front Wheel Drive Brake Assembly
Most front disc brake components include: brake rotor, brake pads, brake caliper, caliper mount and brake flex hose. Brake service usual occurs between 20,000 and 40,000 miles depending on driver habits, road conditions and brake pad/ rotor materials used.
Step 2: Remove Brake Caliper to Replace Pads
brake_pad_set.jpg
Removing Brake Caliper Mounting Bolts
Locate primary caliper mounting bolts; apply wrench pressure counter-clockwise (When looking at the head of the bolt) to remove the bolts, upper and lower. Make sure the bolt threads are in good shape and replace if necessary.
Step 3: Remove Front Brake Caliper
remove_brake_caliper.jpg
Remove Front Brake Caliper
After removing the primary caliper mounting bolts lift the brake caliper off of the rotor and then tie or secure to the side, being careful not to bend or kink the brake caliper flex hose. Thoroughly inspect brake caliper and brake hoses for leakage, cracks or chaffing and replace as needed. Next remove the brake pads (If not mounted in the caliper) and secondary caliper mounting bolts. Notice how great protective gloves work, most technicians use them on the job today.
Step 4: Remove Brake Pads
remove_brake_pads.jpg
Remove Front Brake Pads
Once the brake pads have been removed, make sure if there is anti rattle hardware to transfer to the new brake pads. Some brake pad manufacturers will include the proper lube (Caliper slides) and anti-rattle hardware to ensure proper performance of their product.
Step 5: Remove Caliper Mount
remove_brake_pads_holder.jpg
Remove Caliper Mount Bracket
Finish removing secondary caliper mount bolts and remove caliper mount. Note: clean and lube caliper slides and pad friction surfaces of all foreign material or build-up.
Step 6: Remove Brake Rotor
brake_rotor.jpg
Remove Brake Rotor
With the caliper mount out of the way you can now remove the brake rotor. Sometimes it can get stuck so you may need to tap it with a hammer or use penetrating oil to free it up. Some manufacturers use small screws to hold the rotor on as well. Clean and inspect wheel studs, replace if any are damaged. Also clean bearing hub rotor mount surface to ensure the proper mounting of the new brake rotor. Inspect the ABS sensor wheel for cracks or damage and replace as needed.
Step 7: Depressing the Brake Caliper
compress_caliper.jpg
Resetting Brake Caliper
To install the new brake pads you must retract the brake caliper piston. Remove the master cylinder lid or open the brake caliper bleeder screw to allow excess brake fluid to be released if necessary. Install C clamp tool and gently tighten clamp until caliper piston is fully depressed. Note: use old brake pad to protect the caliper piston. Close the bleeders once the piston is retracted completely
Step 8: Installing New Brake Rotor
new_brake_rotor.jpg
Install Brake Rotor
Install new brake rotor, the new rotor is manufactured with a protective film over the rotor to keep it from rusting, remove protective film with brake cleaner before installing; also after the brake job is complete you may experience a small amount of smoke from the rotor when first used. This is normal and will go away after the first couple of uses.
Step 9: Installing New Front Brake Pads
new_brake_pads.jpg
Installing New Brake Pads
Reinstall the front brake caliper mount, and then install front brake pads. Make sure the pads are seated properly in the caliper mount; it must be a close fit to work properly..
Step 10: Reinstall Front Brake Caliper
front_brake_rotor_pads.jpg
Re-Install front Bake Caliper
Reinstall front brake caliper and reinstall caliper-mounting bolts, recheck all mounts and mounting bolts. Check the caliper slides to be sure there is no bind and that the caliper moves freely back and forth on the caliper slides. Bleed brake system per manufacturer's specifications to relieve any air trapped in the system. Before driving the vehicle, push the brake pedal down and let it up slowly, repeat until normal brake pedal operation resumes, this operation is forcing the brake pads to travel to the brake rotors.

Dec 18, 2010 | 2006 Cadillac STS

3 Answers

Put new brake pads on, now brakes were smoking. Sticking caliper?


They are rather easy to replace, disconnect the brake hose, and remove the caliper as you did replacing the pads. You'll need to then bleed the caliper until clear fluid, with no air bubbles come from the bleeder screw. Check that you don't have a collapsed brake hose, not letting the fluid return to the master cylinder.

May 24, 2010 | 1992 GMC Jimmy

1 Answer

Just put new brake caliper on front driver side


Gravity bleed caliper, just open valve and have a coffee break and close it. Did you buy a loaded caliper with new pads on it? Check the rear wheel cylinders they may be the cause of your mushy pedal. They are cheap too.

Jun 09, 2009 | 1992 Oldsmobile Cutlass Ciera

1 Answer

Compressing calipers to put on new brake pads on 1988 volvo 740


There is a tool available from most auto parts supply outlets, it is a plate that has a compression bolt through it, you slide the plate into the caliper, and tighten the bolt against the piston, then keep turning until the piston is all the way in. These are relatively inexpensive and good to have for next time.

hope this helps.
Ed

May 06, 2009 | 1988 Volvo 740

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