How to Build a Power Brake Bleeder

Written by connie s owens Google
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How to Build a Power Brake Bleeder
Brake bleeding does not have to be a two person job. (frein image by Frédéric Prochasson from

Bleeding brakes on any vehicle can be a tedious job and will take two people. You can spend a few dollars to make your own power brake bleeder, or you can purchase one ready made. The ready made bleeders are similar to the DIY power brake bleeders. With a little time and a few recycled items you can make your own power brake bleeder with a brake fluid catcher.

Skill level:

Things you need

  • ½-gallon garden sprayer
  • ¼-inch thread brass tee
  • 15-30 psi pressure gauge
  • 6 to 8 foot plastic hose
  • Small brass barb
  • Female pneumatic quick disconnect
  • 6 small hose clamps
  • 709ml. empty soda bottle with lid
  • Teflon tape
  • Pressurised master cylinder cap

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  1. 1

    Remove the hand wand, hose barb and hose that came with the garden sprayer. Attach the plastic hosed you purchased using one of the small hose clamps

  2. 2

    Wrap the centre branch of the brass tee with Teflon tape. Attach the hose barb that came with the garden sprayer to the brass tee branch.

  3. 3

    Wrap the brass tee end with the Teflon tape and secure the pressure gauge and adaptor if needed.

  4. 4

    Attach the female pneumatic quick disconnect to the other end of the brass tee, securing it with the Teflon tape.

  5. 5

    Secure the pneumatic quick disconnect on the brake cylinder. Test the pressurisation by pumping the hand pump. Remove the pressure cap using the quick release; the pressure should remain.

Tips and warnings

  • Rather than buy a pneumatic pressurised cap, you can make your own from any master cylinder cap. Drill a hole in the middle and attach a brass nipple with a nut and washer. Use RTV to create a seal on the inside up to the brass fitting. Attach the brass tee as per earlier instructions.
  • If your brake cylinder has a different type of top you can still create your brake bleeder. Find a master cylinder cover like yours, follow the above instructions to create the pressurised top.
  • To keep from bleeding your brakes to the ground use an empty soda bottle, preferably the 680gr size or larger. Drill a hole in the middle of the cap, stick a length of hose about halfway into the bottle securing the cap and the other end of the hose to the brake line. Using a wire hanger or other similar wire, make a hanging hook by looping one end around the bottle and bending the other so it hangs off the axle.
  • Use caution when drilling the caps. Begin with a small bit and work up to the size of the brass nipple.
  • Do not dispose of brake fluid in the yard, trash or waterways. Take the fluid to a recycling centre or mechanic. Wash all containers before disposing of them.
  • Use caution if you have an allergy to chemicals. Wear rubber or plastic gloves designed for the job.

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