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Brake bleeding problem.

 
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Old Jan 28, 2010
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Brake bleeding problem.

So I finally got the motivation to clean my calipers due to the front inner brake pads wearing much more on the top than the bottom. (This was another thread, but I cannot find it anywhere) I removed everything then installed a new boot, o-ring and clip, then reinstalled. I next bled the system starting from rear-right, then front-left, rear-left, front-right. For each wheel I did:

1. With bleeder screw closed I pumped the brake pedal, then I installed a breaker bar to keep the pedal down.
2. Unscrewed bleeder screw causing pressure/air to release. Tightened screw.
3. Repeat on next wheel, while keeping resorvoir filled.
Note: I bled the system twice total, but still no change.

Any way, the system holds pressure while the car is off, but when I start it the peddal goes limp. If I pump it, it holds a little pressure but any movement of the car makes it go limp. Calipers aren't leaking from the looks of it. I drove the car a little and I cannot get constant pressure. It's down to the bottom sometimes. While bleeding, I had my parking brake on. Perhaps this was the problem?
Old Jan 28, 2010
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Re: Brake bleeding problem.

I just remembered, fresh fluid never came through the back cylinders. They were draining green honda fluid, while I new fluid was white supertech. Does that indicate massive air in the system?
Old Jan 28, 2010
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Re: Brake bleeding problem.

When I bleed my breaks, I use a little bit different method. Put a hose over the bleeder and put it into a bottle half way full of brake fluid. Open up the bleeder screw and then go push on the brakes a few times. As you said, make sure there is enough fluid in the resorvoir. Then just close the bleeder back up and move onto the next brake. Using a bottle with fluid in it keeps air from entering. I believe it was Speedfoos who told me to do this. It worked perfectly.
Old Jan 28, 2010
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Re: Brake bleeding problem.

Oh also, I would just keep going til the fluid comes out the new color. It takes a while but it will happen.
Old Jan 28, 2010
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Re: Brake bleeding problem.

Yes, that's what I just read thanks. But... can I actually pump the brakes while the bleeder is open since, as you said, air won't be entering due to the 1-inch of fluid in the jar? As for the resorvoir cap and e-brake, on or off?
Old Jan 28, 2010
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Re: Brake bleeding problem.

Worked like a charm BJ, thanks again. The rear-right wheel had a bunch of air in it since it wasn't pumped enough.
 
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