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Old 08-06-2014, 06:15 AM   #1
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brake bleeding question

So I bench bled my brand new napa mc. Then installed. Started w furthest rear line using a self bleed kit. I pulled 3 reservoir full of fluid and still getting air. Is this normal?
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Old 08-06-2014, 07:06 AM   #2
O'l Buck
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Re: brake bleeding question

I've never had one take that much fluid for a master cylinder change, I assume it went on a system that already had fluid in the rest of the lines from the old master cylinder. You might want to take it back off and see if it's leaking out the back.
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Old 08-06-2014, 12:38 PM   #3
nzc10
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Re: brake bleeding question

Get someone to help you and manually pressure bleed the system
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Old 08-06-2014, 01:03 PM   #4
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Re: brake bleeding question

On it! Thinking same thing.
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Old 08-06-2014, 01:32 PM   #5
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Re: brake bleeding question

I had the same problem a year or two back and it drove me crazy -- I kept pumping fluid though and kept getting air from the rear wheel cylinders. I hadn't noticed any sign of leakage but closer inspection showed a very slight residue on the cylinders. Both of them were bad. New wheel cylinders made everything good.
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