Editing Vacuum brake bleeder set up (section)
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==Warnings== There are a few issues with vacuum bleeding. First is sucking air around the bleeder valve threads. The solution is to use Teflon (PTFE) tape or Teflon thread sealer on the threads. If some air leaks past the threads this isn't much of an issue as long as mostly brake fluid is in the bleeder hose. Throttling down the vacuum pump also helps. Be sure to keep an eye on the fluid level in the master cylinder reservoir as it will go down quickly. If you are flushing out old brake fluid use a turkey baster (that will never be used on food again) to remove the old brake fluid from the reservoir. Refill with fresh fluid before resuming bleeding. {{Warning|Most brake fluid will severely damage painted surfaces if exposed for long. Remove and wash using a lot of clean water and mild soap, rinse clean.}} {{Warning|If you are using engine vacuum for bleeding the brakes, then this means the engine is running . Anytime the engine is running unattended by a driver, chock the wheels, put the transmission in Park and/or set the parking brake. Good ventilation is essential!}} {{Warning|Be safe: If the vehicle is raised off the ground, use jackstands and chock the wheels, use Park and parking brake as needed.}} {{Warning|The only thing (chemical) that should ever make contact with brake fluid is the same type of brake fluid.}} Also see [[Health and safety in the shop or garage]].
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