Question about 1986 Toyota Pickup 4WD

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86 Toyota P/U disc brakes, 2 wheel drive..what

86 Toyota P/U disc brakes,22R engine, manual trans, 2 wheel drive..what returns the caliper piston to rest when I release the brakes. What else do I need to look at and or rebuild to get them to release? Thanks Jim

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You need to use a large "C Clamp" to compress the caliper piston back into the cylinder. This is the normal way since there is no "return" mechanism other than "lack of hydraulic pressure".
The brake fluid will back up into the master cylinder reservoir, so remove some of the fluid.
Just two bolts hold the floating caliper in place.

Posted on Oct 01, 2009

Testimonial: "Thanks for the info. Negative hyd. pressure is all that returns the plunger to release the brakes? Yhanks again! Jim"

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I have 2003 gallant, Islammed on the brakes really hard, tried to drive the car from that spot, go in gear but wouldn't move, front wheels roll, rear wheels are locked up.


If rear brakes are drum-type it is possible the shoes are jammed on the drums. They are normally retracted from there by springs, but if there is breakage or corrosion they can jam in place. One place corrosion occurs is in the wheel brake cylinders, so then the pistons do not return properly,

The same can happen with disc brakes as the pads are normally pulled back after application, just a little, by the springiness of the rubber parts on the pistons. So if there is corrosion in the calipers the pistons can stick.

Then, if disc brake pads are worn right down, I have heard of cases where the piston popped right out of the caliper on heavy braking, or else turned a bit sideways and jammed on. It should never happen, but apparently did.

If disc brakes you should be able to see this when the wheel is off. The calipers can then be removed. If drum brakes try hammering on the outside rim of the drums, this way and that, to get enough de-jamming to get the drums off.
.

Nov 17, 2016 | Cars & Trucks

1 Answer

Brakes jammed on


The causes and remedy for brake jamming:
As a first aid, loosen and then tighten any one of the front wheel bleeding nipple. This will free up the brakes.
- Front calipers pins jammed. (Re-grease the pins with graphite grease)
- Front calipers pistons jammed. (Remove the caliper one by one, do not remove the brake pipe, depress the brake pedal only one time then release, lift the caliper boot at one side with abrupt tool, just as we lift up our eye lid with thumb and index finger, pour few drops of brake oil DOT 3 into the boot, push back the piston to allow the caliper to fit on pads.
- Rear wheel's pistons jammed. (Free up the pistons, inspect the brake washers, replace rear wheel cylinders if brake washers are found swollen).
- Brake master cylinder defective. The brake jamming problem often arises when the brake master cylinder washers swell up due to aging or using wrong grade of brake oil. In such cases the washers expand and block the return line of the brake oil. If so, replace the brake master cylinder with original one.

Mar 06, 2014 | 2003 Toyota ECHO

2 Answers

How to change brake pad and check rotors


Brake Pads Removal & Installation Front for_car_toy_cam_02-04_sst_frt_dsc_asm.gif

To Remove:
  1. Drain brake fluid to ½ full level in reservoir.
  2. Remove the front wheels. toy_car_cam_frontbrakepads.gif

  3. Remove the front brake caliper assembly.
  4. Remove the 2 anti-squeal shims from each of the 2 brake pads.
  5. Remove the wear indicator from each of the 2 brake pads.
To Install:
NOTE: When replacing worn pads, the anti-squeal shims must be replaced together with the pads.
toy_car_cam_frontbrakepads.gif

  1. Using a large C clamp or equivalent press piston into the caliper.
  2. Apply disc brake grease to the inside of each anti-squeal shim.
  3. Install the anti-squeal shims on each pad.
  4. Install the pad wear indicator clip to the pads.
  5. Install the pads with the pad wear indicator plate facing upward.
  6. Install the brake caliper with the 2 mounting bolts. Torque the bolts 25 ft-lb (34 Nm).
  7. Install the front wheels.
  8. Fill the master cylinder with new clean brake fluid.
  9. Pump the brake pedal several times to seat the brake pads.
Rear TMC made rear brake components toy_car_cam_tmcrearbrakes.gif

TMMK made rear brake components toy_car_cam_tmmkrearbrakes.gif

To Remove:
  1. Drain the brake fluid to ½ full level in reservoir.
  2. Remove the rear wheels.
  3. Remove the caliper slide pins.
  4. Remove the caliper slide pin bushings (TMMK made) (Kentucky).
  5. Remove the rear brake calipers.
  6. Remove the 2 brake pads with the anti-squeal shims.
  7. Remove the anti-squeal shims and pad wear indicators from brake pads.
To Install:
  1. Using a large C clamp or equivalent press the piston into the caliper.
  2. Coat both sides of the outer anti-squeal shim with pad grease.
  3. Install anti-squeal shims to each pad.
  4. Install wear indicators on the 2 brake pads.
  5. Install the caliper slide pin bushings (TMMK made) (Kentucky).
  6. Install the rear brake caliper with the slide pins. Torque the slide pins as follows:
    • TMC made (Japan): Torque the caliper slide pin 25 ft-lb (34.3 Nm)
    • TMMK made (Kentucky): Torque the caliper slide pin 34 ft-lb (47 Nm)
  7. Fill the master cylinder with new clean brake fluid.
  8. Pump the brake pedal several times to seat the brake pads.
  9. Install the rear wheels.
prev.gif next.gif Brake Rotor Removal & Installation Front To Remove:
  1. Remove the front wheels.
  2. Remove the front brake caliper assembly.
  3. Remove the front brake pads.
  4. Remove the 2 bolts and caliper mounting bracket.
  5. Place match marks on the disc and axle hub.
  6. Remove the front wheel disc.
To Install:
  1. Align the match marks and install the front disc.
  2. Install the brake caliper mounting bracket. Torque the bolts 79 ft-lb (107 Nm).
  3. Install the brake caliper. Torque the bolts 25 ft-lb (34 Nm).
  4. Install new gaskets and connect the brake hose to the caliper with the banjo fitting bolt. Torque the fitting bolt 22 ft-lb (29.4 Nm).
  5. Fill the reservoir with brake fluid.
  6. Bleed the brake system.
  7. Install the front wheel.
Rear To Remove:
  1. Remove the rear wheels.
  2. Remove the brake caliper assembly.
  3. Remove the brake pads.
  4. Remove the 2 bolts and the caliper mounting bracket.
  5. Place match marks on the disc and axle hub.
  6. Remove the rear disc.
To Install:
  1. Align the match marks and install the rear disc.
  2. Install the rear brake caliper mounting bracket. Torque the bracket bolts as follows:
    • TMC made (Japan): Torque the bracket bolt 46 ft-lb (61.8 Nm)
    • TMMK made (Kentucky): Torque the bracket bolt 34 ft-lb (47 Nm)
  3. Install the rear brake caliper with the slide pins. Torque the slide pins as follows:
    • TMC made (Japan): Torque the caliper slide pin 25 ft-lb (34.3 Nm)
    • TMMK made (Kentucky): Torque the caliper slide pin 32 ft-lb (43 Nm)
  4. Install new gaskets and connect the brake hose to the caliper with the banjo fitting bolt. Torque the fitting bolt 22 ft-lb (29.4 Nm).
  5. Fill the reservoir with brake fluid.
  6. Bleed the brake system.
  7. Install the rear wheel
prev.gif next.gif

Jan 25, 2011 | 2007 Toyota Camry

1 Answer

General directions on how to change the front brakes on a Toyota Supra, 1987.


Buy brake pads.
loosen lugs
Jack car, place on jack stand
turn wheel so front of tire is pointing out.
remove tire
remove caliper (two bolts on back side of caliper
slide caliper off rotor.
(if rotor is damaged, see about having it turned or replaced)
take pads off caliper
open hood and remove cap to mater cylinder reservoir
using special tool (or C-clamp and something to protect piston) push the piston back into the caliper fully.
place new brake pads on caliper.
fit caliper on the rotor
Secure caliper to wheel with bolts
replace wheel
remove jack stand
remove jack
tighten lugs on wheel
replace hubcap
start engine (do not drive yet!!!!!)
pump brake pedal until it tightens up
observe reservoir on master cylinder (fill if needed)
replace cap
pump brakes again
take out for a test drive.

good luck and don't forget to vote!!!

Oct 11, 2010 | 1987 Toyota Supra

1 Answer

What tools needed to replace front brake pads & rotors


Brake Pads
Removal & Installation
Front





3.4L front disc brake assembly
toy_4run_34_frontbrakeassembly.gif








4.0L and 4.7L front disc brake assembly
toy_4run_frontbrakeassembly.gif



To Remove:


  1. Before servicing the vehicle, refer to the precautions in the beginning of
    this section.
  2. Remove or disconnect the following:

    • Front wheel
    • Clip, 2 caliper pins, the anti-rattle spring then remove the 2 brake pads
      and the 4 anti-squeal shims

To Install:

CAUTION
Only replace brake pads on 1 side of the
vehicle at a time. Failure to use this procedure could cause the caliper pistons
on the opposite side of the vehicle to pop out requiring the reconditioning or
replacement of the brake caliper.


  1. Remove a small amount of brake fluid from the master cylinder.
  2. Install a used brake pad into the caliper and compress the caliper pistons.
  3. Apply disc brake grease to both sides of the inner anti-squeal shims.
  4. Install or connect the following:

    • Anti-squeal shims to the new brake pads
      NOTE: When replacing worn pads, the anti-squeal shims must be replaced
      together with the pads.

    • 2 brake pads
    • Anti-rattle spring and the 2 caliper pins
    • Clip
    • Front wheel

  5. Depress the brake pedal several times to seat the brake pads.
  6. Check the brake fluid level and top off as needed.

Rear
To Remove:


  1. Before servicing the vehicle, refer to the precautions in the beginning of
    this section.
  2. Remove or disconnect the following:

    • Rear wheel






      toy_4run_rearcalbolts.gif



    • 2 cylinder slide pins from rear caliper assembly
    • Caliper assembly from rear caliper mounting
    • 2 brake pads with anti-squeal shims from rear caliper mounting
    • 2 anti-squeal shims from each disc brake pads
    • Pad wear indicator plate from the inner side disc brake pad
    • 4 pad support plates from the rear caliper mounting

To Install:


  1. Install or connect the following:

    • 4 pad support plates on the rear caliper mounting
    • Pad wear indicator plate on the inside brake pad
      Note: Install the pad wear indicator facing downward.

    • Anti-squeal shims on each brake pad
    • 2 disc brake pads with anti-squeal shims to the caliper assembly

  2. Apply lithium soap base glycol grease to the sliding part of 2 caliper slide
    pins.
  3. Install or connect the following:

    • Disc brake caliper assembly with 2 caliper slide pins
    • Torque to 65 ft-lbs (88 Nm)
    • Rear wheel

  4. Depress the brake pedal several times to seat the brake pads.
  5. Check the brake fluid level and top off as needed.
--- Removal & Installation
Front
To Remove:


  1. Before servicing the vehicle, refer to the precautions in the beginning of
    this section.
  2. Remove or disconnect the following:

    • Front wheel
    • Front brake caliper assembly

  3. Make matchmarks on the disc and the axle hub.
  4. Remove the front disc.

To Install:


  1. Align matchmarks and disc onto axle hub.
  2. Install or connect the following:

    • Front brake caliper assembly with the 2 bolts

      1. Torque to 90 ft-lbs (123 Nm)

    • Front wheel

Sep 23, 2010 | 2003 Toyota 4Runner

1 Answer

Need help changing brake pads and routers on 2003


Remove brake fluid from the master cylinder brake fluid reservoir until the reservoir is approximately 1/2 full. Discard the removed fluid.
  1. Raise and safely support the front of the vehicle. Remove the front wheels.
    1. Remove or disconnect the following:
    2. Front brake caliper guide pin bolts
    • Brake caliper by slowly sliding it up and off the adapter and brake rotor. Support the caliper out of the way with a strong piece of wire. Do not let the caliper hang by the brake hose or damage to the brake hose will result.
    1. If necessary, compress the caliper piston into the bore using a C-clamp. Insert a suitable piece of wood between the C-clamp and caliper piston to protect the piston.
    2. Outboard disc brake pad from the caliper by prying the brake pad retaining clip over the raised area on the caliper. Slide the brake pad down and off the caliper.
    • Inboard disc brake pad from the caliper by pulling the brake pad away from the caliper piston until the retaining clip on the pad is free from the caliper piston cavity
  • To install:
    1. Be sure the caliper piston has been completely retracted into the piston bore of the caliper assembly. This is required when installing the brake caliper equipped with new brake pads.
    2. If equipped, remove the protective paper from the noise suppression gaskets on the new disc brake pads.
    3. Install or connect the following:
      • New inboard disc brake pad into the caliper piston by pressing the pad firmly into the cavity of the caliper piston. Be sure the new inboard brake pad is seated squarely against the face of the brake caliper piston.
      • Outboard disc brake pad by sliding it onto the caliper assembly
      • Brake caliper assembly over the brake rotor and onto the steering knuckle adapter
      • Caliper guide pin bolts and torque to: 35 ft. lbs. (47 Nm) on 2002–04 models or 26 ft. lbs. (35 Nm) on 2005 models
      • Front. Apply the brake pedal several times until a firm pedal is obtained.
    4. Check the fluid level in the master cylinder and add fluid as necessary. Road-test the vehicle.

    For the rotors:

    1. Remove brake fluid from the master cylinder brake fluid reservoir until the reservoir is approximately 1/2 full. Discard the removed fluid.
    2. Raise and safely support the front of the vehicle. Remove the front wheels.
    1. Remove or disconnect the following:
    2. Front brake caliper guide pin bolts
    • Brake caliper by slowly sliding it up and off the adapter and brake rotor. Support the caliper out of the way with a strong piece of wire. Do not let the caliper hang by the brake hose or damage to the brake hose will result.
    1. If necessary, compress the caliper piston into the bore using a C-clamp. Insert a suitable piece of wood between the C-clamp and caliper piston to protect the piston.
    2. Outboard disc brake pad from the caliper by prying the brake pad retaining clip over the raised area on the caliper. Slide the brake pad down and off the caliper.
    • Inboard disc brake pad from the caliper by pulling the brake pad away from the caliper piston until the retaining clip on the pad is free from the caliper piston cavity
  • To install:
    1. Be sure the caliper piston has been completely retracted into the piston bore of the caliper assembly. This is required when installing the brake caliper equipped with new brake pads.
    2. If equipped, remove the protective paper from the noise suppression gaskets on the new disc brake pads.
    3. Install or connect the following:
      • New inboard disc brake pad into the caliper piston by pressing the pad firmly into the cavity of the caliper piston. Be sure the new inboard brake pad is seated squarely against the face of the brake caliper piston.
      • Outboard disc brake pad by sliding it onto the caliper assembly
      • Brake caliper assembly over the brake rotor and onto the steering knuckle adapter
      • Caliper guide pin bolts and torque to: 35 ft. lbs. (47 Nm) on 2002–04 models or 26 ft. lbs. (35 Nm) on 2005 models
      • Front. Apply the brake pedal several times until a firm pedal is obtained.
    4. Check the fluid level in the master cylinder and add fluid as necessary. Road-test the vehicle.

    May 28, 2010 | 2003 Chrysler Town & Country

    4 Answers

    Heat in front wheel when driving


    Sounds like you accurately diagnosed the problem. You didn't mention aany grinding noise so it sounds like a sticking caliper, Remove wheel, spray piston with disc brake cleaner.

    Also inspect pads for wear and rotor for scratches, grooves. If pads thin, or rotors damaged, find a mechanic.

    If cleaner doesn't free the piston, you should, again, get mechanic to check it out.

    May 08, 2009 | 2006 Mitsubishi Colt

    2 Answers

    2001 brake pad replacement 2001 nissan quest


    The hard part is pressing the caliper piston abck into the caliper so you can get the new, thicker pads over the rotor. A large C Clamp works best.

    SECTION 206-03: Front Disc Brake 2001 Villager Workshop Manual
    REMOVAL AND INSTALLATION Pads —Front Disc Brake Removal
    1. Remove the wheel and tire assembly. For additional information, refer to Section 204-04 .
    1. Remove the front disc brake caliper bolts. torx bit. T20?
    1. Support the front disc brake caliper from the front strut and spring assembly using mechanics wire.
    1. Remove the front disc brake pads.
      1. Remove the outboard front disc brake pad.
      1. Remove the inboard front disc brake pad.
    Installation
    1. s1v~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Make sure the master cylinder reservoir does not overfill and spill brake fluid while retracting the front disc brake caliper piston.
      NOTE: It is necessary to fully retract the front disc brake caliper piston in the bore before installing the front disc brake pads.
      Install the front disc brake pads.
      1. Install the inboard front disc brake pad.
      1. Install the outboard front disc brake pad.
    Caution. The outer pads are left and right. put left on driver side.
    1. Position the front disc brake caliper on the front-wheel knuckle and install the brake caliper pin bolts.
    1. s1v~us~en~file=ani_caut.gif~gen~ref.gif WARNING: It is necessary to depress the brake pedal several times to position the front disc brake caliper piston before driving the vehicle.

    Apr 23, 2009 | 2001 Nissan Quest

    1 Answer

    Rear brake to remove replace disk and service due binding


    Preliminaries Do 1 wheel at a time Use a jackstand on the wheel you are working on (safety First) Remove the tire on the selected wheel
    The Brake caliper is usually held on by 2 bolts. Some of the bolts are Allen wrench type, usually about ¼ inch or 5/16 inch. Remove and the complete brake caliper can be lifted off the rotor. The pads can now be removed. Before installing the new pads you must first return the pad piston to their original position in the caliper. Open the hood of the engine compartment and remove the cover on the master cylinder. This allow the brake fluid to be returned to the master cylinder. To return the pad piston to the original position you will need a C clamp and a flat piece of metal like a small flat file. Put the flat piece of metal on the piston and use the C clamp to put pressure on the piston. Tighten the C clamp slowly and you will see the piston slowly retract into the caliper body. Now you can insert the new pads into the caliper. Mount the caliper over the rotor and reinstall the 2 bolts.

    Loringh Hope this helps Good Luck PS Please leave a rating if Appropriate Thanks

    Nov 23, 2008 | 2001 Mazda 626

    2 Answers

    Changing front brake pads


    You shouldn't need to remove the calipers altogether just to replace the pads. You have remove the split pins or retaining springs on the old pads, then prize back the caliper pistons enough to remove them. Then push the pistons back some more enough to get the new pads in. Then reassemble and test.

    Oct 23, 2008 | 2007 Toyota Yaris

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