Bleeding Brakes, but air bubbles don't stop.

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Ussawinb
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Joined: Thu Oct 30, 2008 7:23 am

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So here's my problem. I'm bleeding out my driver and passenger side breaks, but the air bubbles don't stop. I was doing it for a long time so I checked my lines and there are no leaks and all the nuts are tight. Anyone know what's going on? Could be the master cylinder but, the rear bled out fine.


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ilovesideways
Posts: 688
Joined: Mon Sep 08, 2008 10:29 am
Car: 240SX S-13 KA24E

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Ussawinb wrote:So here's my problem. I'm bleeding out my driver and passenger side breaks, but the air bubbles don't stop. I was doing it for a long time so I checked my lines and there are no leaks and all the nuts are tight. Anyone know what's going on? Could be the master cylinder but, the rear bled out fine.
did you run the reservior out of fluid?

scottydog
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Joined: Sun Aug 12, 2007 3:22 am
Car: 1992 240sx

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Did you bleed in the correct order? LR-RR-LF-RF

Make sure you do it properly, and don't reintroduce air. Don't drive it until you're sure it's right...

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AZhitman
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scottydog wrote:Did you bleed in the correct order? LR-RR-LF-RF

Make sure you do it properly, and don't reintroduce air. Don't drive it until you're sure it's right...
Correct (if the brake reservoir is on the right).

Do the farthest-away caliper from the reservoir first, and work forward from there.

I'm guessing you're re-introducing air someplace ( a leak). Make sure you're bleeding them properly, making sure not to suck up air during the process... Put a small hose on the bleeder and submerge it into a container of brake fluid to avoid sucking air.

Ussawinb
Posts: 4
Joined: Thu Oct 30, 2008 7:23 am

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yeah, it's full of fluid, and I did it in the right order, and i've bled it properly so i didn't introduce air when i hit the breaks, and it's on jack stands so it's not because i've been driving it and there are no leaks from any of the lines. =(

Thanks for the help guys, any other suggestions?

scottydog
Posts: 261
Joined: Sun Aug 12, 2007 3:22 am
Car: 1992 240sx

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Then there is a leak somewhere. If you get bubbles on all the slaves the air is coming from the master.


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