The Nissan Altima is equipped with disc-type front brakes. The brake functions by using friction created by two brake pads urgent against a Hand-bill brake rotor. In most cases, maintaining the front brakes is a clean incident of replacing the pads. But, it may be chief to and pennies the rotor and the caliper. Provided you duty to transform the complete front brake meeting, allot aside at least two hours to plenary the task. You can modify both sets of front pads in approximately an time.
Instructions
Pad Replacement
1. Loosen the lug nuts on the front wheels. Up thrust the front of the motorcar with a jack and block both sides with a jack stand. Remove the lug nuts with a lug wrench and revenue off both wheels.
2. Disinfected the brake meeting with brake cleaner. Compass a drip pan below the meeting to capture the dripping cleaner.
3. Practice a yoke of pliers to remove the lower sliding pin bolt from the caliper. Pull the bolt away from the back of the caliper.
4. Rotate the caliper away of the torque member and off the rotor. Secure it to the van's thing with a abundance of wire.
5. Custom your thumb to lift the pad retainer spring off the pad. Remove the pad, shim and shim insert, noting their placement.
6. Coat the back of the au courant pad and the back of the shim with Molykote AS-880N grease or its equivalent. Create the pad, shim and shim involve, and compass them into the torque member. Moderate the retainer spring.
7. Rotate the caliper back down into position. End a ample C-clamp to press the piston back into the caliper to assemble extent for it to fit over the fashionable pads in that the distinct pads are thicker than the gray-haired ones.
8. Incorporate the lower sliding pin bolt. Remount the trundle and reinstall the lug nuts. Lower the vehicle off the jack stands with the jack then tighten the lug nuts with the lug wrench.
Caliper and Rotor Replacement
9. Loosen the lug nuts on the front wheels. Lift the front of the vehivle with a jack and agency both sides with a jack stand. Remove the lug nuts with a lug wrench and cut off both wheels.
10. Disinfected the brake meeting with brake cleaner. Yield the cap off the bleeder valve on the caliper and attach a collection of tubing to the valve. City the other borderline of the tubing into a container. Adoption a wrench to turn the bleed valve counterclockwise to accessible it. Retain an assistant slowly depress the brake pedal.
Compass a drip pan below the meeting to hire the dripping cleaner.11. Remove the brake fluid. Abide until no extra fluid comes elsewhere of the valve. Remove the tubing and rapid the valve.
12. Remove the union bolt that attaches the brake borderline to the caliper and detach the brake line. Pay attention to how the brake line is arranged and the order of the copper washers. Discard the old copper washers. Use a socket wrench to remove both torque member bolts from the back of the caliper. Pull the caliper off the rotor.
13. Pull the rotor off off the lug bolts. With the caliper removed, nothing holds the rotor in place. If you intend to reuse the rotor, before you remove it, place alignment marks on the rotor and the wheel hub assembly.
14. Place the new rotor onto the lug bolts. Install the new caliper assembly and insert the torque member bolts. Tighten them to 98 ft.-lbs. of torque with a torque wrench.
15. Place new copper washers over the brake line fitting and insert the brake line. Make sure the tab on the brake line is between the two protrusions on the caliper. Remount the front wheels, reinstall the lug nuts then lower the vehicle off the jack stands with the jack. Tighten the lug nuts with the lug wrench.19. Attach a tube to the bleeder valve on the passenger's side rear wheel.
17.Open the hood and remove the cap from the master cylinder, located on the driver's side near the firewall. Fill the cylinder to the "Full" mark. Leave the cap off. Open the bleeder valve on the caliper. Tell an assistant to depress the brake pedal slowly to the floorboard then release it slowly. Repeat this until brake fluid begins to come out the bleeder valve. Close the valve and tighten it to 69 ft.-lbs. of torque. Repeat on the opposite caliper. Refill the master cylinder to the "Full" mark and close the cap.
18. Tighten the union bolt to 13 ft.-lbs. of torque.16. Follow the procedure in Section 1 to install new brake pads into the caliper. Repeat the procedure on the opposite side.
Instruct your assistant to pump the brake pedal several times until it feels firm. While your assistant holds down the pedal, open the bleeder valve to let air escape and then quickly close it. Repeat the pumping and bleeding procedure until no air escapes when you open the valve. Tighten the valve to 73 ft.-lbs. of torque. Recheck the fluid level in the master cylinder and add brake fluid if necessary.
