Vacuum brake bleeder set up
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==Use== | ==Use== | ||
| − | Hook | + | Hook up a hose from the brake bleeder to the fitting on the jar with the short piece of hose inside the jar. Hook the other fitting on the jar to the vacuum pump. Hook up the vacuum pump to your compressor. I used a ball valve on the compressor side to throttle down the amount of vacuum. |
| − | There are a few issues with vacuum bleeding. First is sucking air around the bleeder valve threads. The solution is to use | + | 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. |
| − | I didn't have much luck with either | + | 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 it with fresh fluid and start bleeding. |
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| + | I didn't have much luck with either Teflon tape, or sealer, seems that movement of the bleeder valve disrupts the seal. I used silicone grease that would move with the valve, due to the use of Dot 5 brake fluid. Maybe lithium would work with Dot 3 fluid. With the 3/8" vacuum hose I was using, I had to carefully regulate the vacuum source to keep from over running the 3/16" brake line, and causing more air in the suction line. | ||
[[Category:Brakes]] | [[Category:Brakes]] | ||
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