REMOVAL & INSTALLATION
See Figures 1 through 7
- Disconnect the negative battery cable.
- Raise and safely support the vehicle.
- Remove the wheel.
- Disconnect the flexible brake hose from the caliper. Remove the hollow banjo bolt that connects hose fitting to caliper.
- Remove the hose assembly from the caliper and plug the hose.
- Remove the caliper locating pins using a Torx® T40 bit.
Do not remove the pins all the way. If fully removed, the pins are difficult to install and require new guide bushings.
- Lift the caliper off the rotor and integral knuckle and anchor plate using a rotating motion.
Do not pry directly against plastic piston or damage to piston will occur.
- Position the caliper assembly above the rotor with the anti-rattle spring under the upper arm of the knuckle. Install the caliper over the rotor with a rotating motion. Ensure the inner shoe is properly positioned.
Ensure that the correct caliper assembly is installed on the correct knuckle. The caliper bleed screw should be positioned on top of the caliper when assembled on the vehicle.
- Lubricate the locating pins and inside of insulators with silicone grease. Install the locating pins through the caliper insulators and into the knuckle attaching holes. The caliper locating pins must be inserted and the threads started by hand.
- Using the correct wrench and a Torx® T40 bit to tighten the caliper locating pins to 18-25 ft. lbs. (24-34 Nm).
- Remove the plug or cap and install brake hose on caliper with a new gasket on each side of fitting outlet. Insert the attaching bolt through washers and fittings. Tighten the bolt to 30-40 ft. lbs. (40-54 Nm).
- Bleed the brake system. Always install the rubber bleed screw cap after bleeding.
- Top off the master cylinder, as required.
- Install the wheel(s).
- Connect negative battery cable.
- Pump brake pedal prior to moving the vehicle to position brake linings.
- Lower the vehicle and road test to ensure proper operation.
See Figures 8 through 15
Some vehicles may be equipped dual piston calipers. The procedure to overhaul the caliper is essentially the same with the exception of multiple pistons, O-rings and dust boots.
- Remove the caliper from the vehicle and place on a clean workbench.
Depending upon the vehicle, there are two different ways to remove the piston from the caliper. Refer to the brake pad replacement procedure to make sure you have the correct procedure for your vehicle.
The first method is as follows:
- Stuff a shop towel or a block of wood into the caliper to catch the piston.
Remove the caliper piston using compressed air applied into the caliper inlet hole. Inspect the piston for scoring, nicks, corrosion and/or worn or damaged chrome plating. The piston must be replaced if any of these conditions are found.
- For the second method, you must rotate the piston to retract it from the caliper.
- If equipped, remove the anti-rattle clip.
- Use a prytool to remove the caliper boot, being careful not to scratch the housing bore.
- Remove the piston seals from the groove in the caliper bore.
- Carefully loosen the brake bleeder valve cap and valve from the caliper housing.
- Inspect the caliper bores, pistons and mounting threads for scoring or excessive wear.
- Use crocus cloth to polish out light corrosion from the piston and bore.
- Clean all parts with denatured alcohol and dry with compressed air.
- Lubricate and install the bleeder valve and cap.
- Install the new seals into the caliper bore grooves, making sure they are not twisted.
- Lubricate the piston bore.
- Install the pistons and boots into the bores of the calipers and push to the bottom of the bores.
- Use a suitable driving tool to seat the boots in the housing.
- Install the caliper in the vehicle.
- Install the wheel and tire assembly, then carefully lower the vehicle.
- Properly bleed the brake system.