Bleeding brakes - Pedal bottoming out - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 12-08-2015, 03:45 PM   #21
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Tap on the lines and calipers with a ratchet or something. It can free up an air pocket. Have you tried gravity bleeding the system? I always try to do as much gravity bleeding as possible and finish up by bleeding the traditional way. Bleeding the brakes puts a lot of wear on the master cylinder.
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Old 12-09-2015, 04:50 PM   #22
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Well, I give up on this for now.

Tried putting pressure on the reservoir, had the caliper bleeders with hose and spring valve submerged in fluid while pumping fluid through with the pedal.

I did get the air I last introduced when opening the line at the master so pumping the pedal definately moves fluid faster than pressure\vacuum bleeding and seems to be the only way to get bubbles past the two downward turns before reaching the calipers.

I`m thinking air in the ABS unit itself or maybe a hose thats ballooning under pressure? Have to check for that last one...

Still have good brakes, but pedal will more or less go all the way to the floor.
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Old 12-09-2015, 05:17 PM   #23
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ABS? Yuck. That complicates things.
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