Wheel Cylinder: Service and Repair
Brakes
Rear Wheel Cylinder Removal and Installation
Removal
1. Vehicle Lift
1. Raise the vehicle on a lift, and make sure it is securely supported.
2. Rear Wheel
1. Remove both rear wheels.
3. Center Console Rear Trim
1. Remove the center console rear trim (A).
4. Parking Brake Adjusting Bolt - Loosen
1. Release the parking brake lever fully.
2. Loosen the adjusting nut (A).
5. Rear Brake Drum
CAUTION:
Frequent inhalation of brake shoe dust, regardless of material composition, could be hazardous to your health.
* Avoid breathing dust particles.
* Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
1. Release the parking brake.
2. Remove the brake drum (A).
NOTE:
* If necessary, turn the adjuster bolt (B) with a flat-tip screwdriver until the shoes become loose.
* If the brake drum is stuck to the hub bearing unit, thread two 8 x 1.25 mm bolts (C) into the brake drum to push it away from the hub bearing unit. Turn each bolt 90 degrees at a time to prevent the brake drum from binding.
6. Rear Brake Shoe
1. Remove the tension pins (A) and the retainer springs (B).
2. Remove the lower return spring (A).
3. Remove the upper return spring (B).
4. Pull the brake shoe assembly (C) forward.
5. Disassemble the brake shoe assembly.
6. Remove the rearward brake shoe (A) by disconnecting the parking brake cable from the parking brake lever (B).
7. Rear Brake Wheel Cylinder
NOTICE:
Do not spill brake fluid on the vehicle; it may damage the paint. If brake fluid does contact the paint, wash it off immediately with water.
1. Disconnect the brake line (A) from the wheel cylinder (B).
NOTE: After removal, plug the ends of the hoses and the joints to prevent spilling brake fluid.
2. Remove the wheel cylinder.
Installation
1. Rear Brake Wheel Cylinder
NOTICE:
Do not spill brake fluid on the vehicle; it may damage the paint. If brake fluid does contact the paint, wash it off immediately with water.
1. Apply Cemedine 366E sealant or equivalent between the wheel cylinder (A) and backing plate (B).
2. Install the wheel cylinder.
NOTE: Use the special bolts.
3. Connect the brake line (C) to the wheel cylinder.
2. Rear Brake Shoe
1. Apply a thin coat of Molykote 44MA grease to the connecting rod ends (A) and the sliding surfaces (B) as shown.
NOTE:
* Wipe off any excess.
* Keep grease away from the brake linings.
2. Apply a thin coat of Molykote 44MA grease to the shoe ends (A) and to the edge of the shoe surfaces (B) that make contact with the backing plate as shown.
NOTE:
* Wipe off any excess.
* Keep grease away from the brake linings.
3. Install connecting rods A and B on the adjuster bolt (C).
NOTE:
* Clean the threaded portions of connecting rod A and the sliding surface of connecting rod B, then coat them with Molykote 44MA grease.
* Shorten connecting rod A by fully turning the adjuster bolt.
4. Assemble the brake shoes with the upper return spring (D), and the connecting rods and the adjuster bolt onto the backing plate.
5. Connect the parking brake cable to the parking brake lever (E).
6. Install the self-adjuster lever (F) and the self-adjuster spring (G) on the forward brake shoe (H).
7. Install the tension pins (A) and the retainer springs (B).
8. Install the lower return spring.
NOTE: Make sure the brake shoes are positioned on the brake shoe bosses on the backing plate, and the fitting on the top of the brake shoes are fitted into the wheel cylinder pistons.
3. Rear Brake Drum
CAUTION:
Frequent inhalation of brake shoe dust, regardless of material composition, could be hazardous to your health.
* Avoid breathing dust particles.
* Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
1. Install the brake drum (A).
NOTE:
* Before installing the brake drum, clean the mating surfaces between the hub bearing unit and the inside of the brake drum.
* After installation, press the brake pedal several times to make sure the brakes work and self adjust the brake shoes. Do not drive the vehicle before doing this procedure.
4. Brake System - Bleeding
NOTICE:
Do not spill brake fluid on the vehicle; it may damage the paint. If brake fluid does contact the paint, wash it off immediately with water.
NOTE:
* Do not reuse the drained fluid. Use only new Honda DOT 3 Brake Fluid from an unopened container. Using a non-Honda brake fluid can cause corrosion and shorten the life of the system.
* Make sure no dirt or other foreign matter gets in the brake fluid.
* The reservoir connected to the master cylinder must be at the MAX (upper) level mark at the start of the bleeding procedure and checked after bleeding each wheel. Add fluid as required.
* There are three different methods used for bleeding brake systems. The method shown here is the preferred manual method for removing the air from the system. For pressure or vacuum bleeding, refer to tool manufacturer's instructions included with the tool.
1. Make sure the brake fluid level in the reservoir tank (A) is at the MAX (upper) level line (B).
2. Start the bleeding at the driver's side of the front brake system.
NOTE: Bleed the calipers in the sequence shown.
Front
Rear-disc brake
Rear-drum brake
3. Attach a length of clear drain tube (A) to the bleed screw (B).
4. Submerge the other end of the drain tube into a clear plastic catch bottle of brake fluid (C).
5. Have an assistant slowly pump the brake pedal several times then apply steady continuous pressure.
6. Loosen the bleed screw slowly to bleed the fluid into the plastic catch bottle. The brake pedal will travel toward the floor as the fluid is bled from the system.
7. When the brake pedal reaches the floor, have the assistant hold the pedal in that position, then tighten the bleed screw. The brake pedal can now be released.
8. Check and refill the master cylinder reservoir tank to the MAX (upper) level line. Be sure to reinstall the master cylinder reservoir cap.
9. Repeat steps 5 thru 8 until the brake fluid in the clear drain tube appears fresh and there are no air bubbles in the fluid.
10. Repeat this procedure for each brake in the bleeding sequence.
5. Parking Brake - Adjustment (Drum Brake)
1. Loosen the adjusting nut (A).
2. Press the brake pedal several times to set the self-adjusting brake before adjusting the parking brake.
3. Pull the parking brake lever 1 click.
4. Tighten the parking brake adjusting nut until the parking brakes drag slightly when the rear wheels are turned.
5. Release the parking brake lever fully.
6. Check that the parking brakes do not drag when the rear wheels are turned.
7. Readjust if necessary.
8. Make sure the parking brake lever is within the specified number of clicks (7 to 9 clicks).
6. Center Console Rear Trim
1. Install the center console rear trim (A).
7. Rear Wheel
1. Install both rear wheels.
NOTE: Before installing the wheel, clean the mating surfaces between the brake disc or the brake drum and the inside of the wheel.
8. Brake Drag - Check
1. Spin the wheels to check for brake drag.