REMOVAL & INSTALLATION
See Figures 1 through 7
- Remove the cap, then siphon 2 / 3 of the brake fluid from the master cylinder reservoir. Install the reservoir cap.
- Break the lug nuts loose, then raise and safely support the vehicle.
- Remove the wheel and tire assembly
- Remove the caliper from the vehicle, but do not disconnect the brake hose. Suspend the caliper from the body of the car with a length of wire. Do not allow the caliper to hang by its brake fluid hose.
- Remove the outer brake pad, using a prytool to disengage the clips on the pad from the holes in the caliper housing.
- Remove the inner brake pad from the caliper.
- Use a clean, lint free cloth to wipe the outside surface of the caliper piston boot with denatured alcohol.
- Push the caliper piston into the caliper bore using a large C-clamp placed on the housing and inside the piston well. Tighten the clamp slowly to press the caliper piston into the housing bore. Remove the clamp.
- With the caliper piston bottomed out in the bore, lift the inner edge of the piston boot next to the piston and press out any trapped air. The piston boot must lie flat.
Install the inner brake pad as follows:
- Insert the inner pad retainer spring into the caliper piston. The retainer spring is staked to the inner brake pad. The inner pad must lay flat against the piston.
- Check to make sure the piston boot and inner pad are not touching. If they are contacting one another, remove the pad and reseat the piston boot.
Install the outer brake pad:
- The back of the outer pad must lay flat against the caliper housing.
- The wear sensor should be at the trailing edge of the outer brake pad when the wheel is rotated forward. If not, the outer pad is on the wrong side.
- Install the brake caliper and the wheel and tire assembly.
- Carefully lower the vehicle, then fill the master cylinder to its proper level with a good quality brake fluid.
If the brake line was disconnected from the caliper, bleed the brakes.
- Pump the brake pedal slowly and firmly 3 times with the engine running before attempting to move the vehicle.
See Figure 8
Always replace all pads on both front wheels at the same time. Failure to do so may result in uneven braking action and premature wear.
The pad thickness should be inspected every time that the tires are removed for rotation. The outer pad can be checked by looking in at each end of the caliper, which is the point at which the highest rate of wear occurs. The inner pad can be checked by looking down through the inspection hole in the top of the caliper. If the thickness of the pad is worn to within 0.030 in. (0.8mm) of the shoe, the pads should be replaced.
The front disc brakes have a wear indicator that will make a squealing or screeching noise when the pads are worn to a point where they should be replaced. When the pads are worn, the indicator contacts the rotor and produces a warning noise when the vehicle is driven. The wear indicator is an integral part of the outer pad.
Measure the flatness of the inner and outer pads. Place the brake pad surfaces together and check for a gap between them. If there is a gap of more than 0.005 in. (0.13mm), measured midway between the attaching lugs, the pads must be replaced.