How to Bleed Wilwood Calipers

Wilwood calipers have a few differences from standard calipers. Some models will have four bleeder screws on each caliper because they have internal fluid passages, but the bleeding process is still similar to that of standard calipers.

Things You'll Need

  • Brake fluid
  • Clear tubing
  • Set of SAE wrenches
  • Lug wrench
  • Torque wrench
  • Socket set
  • Jack
  • Jack stands
  • Glass jar
  • Jack up the vehicle and remove the wheels using a lug wrench. Place the vehicle on a solid set of jack stands. Be sure that the ground is level beneath the vehicle.

  • Remove the cover from the master cylinder reservoir. Fill the reservoir completely.

  • Starting at the wheel farthest from the master cylinder, attach a length of a clear tubing to the bleeder screw. Drop the tubing into a glass jar on the ground.

  • Pump the brake pedal five or six times to build the pressure in the system. Hold the brake pedal down, and slowly open the bleeder screw with the correct size wrench to let air and fluid flow from the system into the jar.

  • Shut the bleeder before the pedal reaches the floor. Repeat this process until you do not see any air in the fluid coming out of the caliper. On calipers with four bleeder screws, you will need to bleed the two upper bleeder screws on each caliper.

  • Move to the next wheel and repeat the process until you have bled all four calipers. Check the fluid level in the master cylinder every three or four times you open a bleeder to ensure the reservoir fluid level never falls below one quarter.

  • Fill the master cylinder reservoir with clean fluid and replace the cover.

  • Replace the wheels, and torque them to the manufacturer's specifications. Remove the jack stands. Road test the brakes.