How to Change the Front Brake Pads on a 1989 Infiniti G20

As a rule of thumb, when inspecting the brakes on your Infiniti G20, make sure the lining is thicker than the back plate they are mounted on. Otherwise, replace them. If you neglect the brakes, they not only can cause damage to the brake rotor but also compromise your safety on the road.

Tools Used: Clean turkey baster, Container, 2 shop rags, Lug wrench, Floor jack, 2 jack stands, 2 chocks, Brake parts cleaner, Clean, lint-free piece of cloth, Ratchet, Ratchet extension, Socket, Large C-clamp, New brake fluid

Change the Front Brake Pads

Remove the Brake Pads

Open the hood and locate the brake master cylinder on the upper part of the firewall, on the driver's side and mounted on the brake booster.

Remove the master cylinder reservoir cap and draw half the brake fluid into a suitable container using a clean turkey baster. Leave the cap loose.

Place two shop rags under the master cylinder to absorb the brake fluid in case it spills when you seat the piston on the brake caliper.

Loosen the front wheel lugs with a lug wrench.

Raise the front of your Infiniti using a floor jack and support it on two jack stands, apply the parking brakes and chock the rear wheels.

Finish removing the two front wheel/tire assemblies.

Spray the brake assembly with brake parts cleaner and wipe all the brake dust off the wheel assembly using a clean, lint-free piece of cloth.

Unfasten the lower brake caliper pin bolt securing the caliper to its mounting bracket over the brake rotor. Use a ratchet, ratchet extension and socket.

Swivel the brake caliper upward and remove the brake pad retainers, inner and outer shims and pads. Note the exact location of each component so that you can replace them in their exact position.

Set the old inner brake pad against the brake caliper piston.

Seat the caliper piston in its bore using a large C-clamp. Remove the inner pad from the caliper. (This will help the new thick brake pads fit between the caliper and rotor.)

Install the New Brake Pads

Install the new brake pads along with the inner and outer shims and pad retainers.

Swivel the brake caliper back over the brake rotor.

Start the lower brake caliper pin bolt by hand, then tighten the bolt using the ratchet, ratchet extension and socket.

Replace the brake pads on the opposite wheel assembly following Steps 7 from the previous section through Step 3 of this section.

Install the two front wheels and wheel lugs.

Lower the vehicle and finish tightening the wheel lugs using the lug wrench.

Remove the shop rags from under the master cylinder and refill the cylinder reservoir with new brake fluid, if necessary. Tighten the reservoir cap.

Depress the brake pedal several times to help the new pads seat properly.

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