Home > Maintenance & Mods (L322) > Brake Bleeding from Empty Master Cylinder |
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Andy K Member Since: 06 Jun 2016 Location: GL Posts: 48 |
I think the issue is getting the air out of the ABS unit. And you need a diagnostic tool to do it.
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7th Aug 2016 8:16pm |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8147 |
You "can" wreck the master cylinder and the ABS pump with a pressure bleeder, think I'd have a go at filling up the master cylinder and opening the caliper bleed screws and seeing if you could get it through by gravity, worse ways a vacuum pump on each nipple (shut the other three) and very gently pull a vacuum....
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7th Aug 2016 10:50pm |
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fisha Member Since: 25 Sep 2009 Location: Scotland Posts: 1338 |
As quick as assisted bleeders are, I think you often get too much fluid left in the master tank which you need to take back out. A 2 person job I think is easier, cleaner and just as quick.
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8th Aug 2016 8:58am |
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DoubleRL322 Member Since: 05 Jul 2016 Location: Orlando, FL Posts: 25 |
As it turns out, the master cylinder was not completely empty. The following morning I took the cap off and looked directly down and tapped on the master cylinder. I could see the fluid moving back and fourth. It was very low, but definitely not empty. Do you think I am ok? Or is it still bad if it is very low?
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8th Aug 2016 12:56pm |
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nicedayforit Member Since: 11 Jun 2011 Location: Beside the Solway Posts: 3969 |
If the master cylinder isn't fully empty fill it with new fluid and leave it to stand overnight to let any bubbles to come to the top. I'd then be inclined to take Petes ( Haylands) advice and bleed the new fluid in initially by opening one bleed screw at a time and letting gravity do the work. It doesn't take long for the fluid to come through, changed the fluid on my brakes recently doing this.
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8th Aug 2016 1:21pm |
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fisha Member Since: 25 Sep 2009 Location: Scotland Posts: 1338 |
HDC would work as well. I've done that too V8 or else ... |
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8th Aug 2016 8:48pm |
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