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Old 02-10-2005, 06:21 AM
1970 olds man's Avatar
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re:cant get brakes bled

Hi all i appreciate any one that takes the time to read this.
I have tried bleeding the brakes furtherest from master cylinder working my way to the closest.The problem is the left rear keeps putting air out time after time.I have an assistant pump the brakes then hold. Then loosen the bleeder, I have the tubing attached to the bleeder screw .Pump it up, loosen ,you get some fluid then toward the end of the pressure release here comes more air time after time. How much should it take to bleed the system? should this much air come out of this wheel when this much don't come out of the other rear side?Could the distribution block be bad? Thanks for the replies to the previous message and any help would be appreciated.

Thanks for the ones who replied to the problem (message)
willys 36,oldschoolrods,66 caprice,rodnok 1,milner,thank guys for youre input i will try yaws suggestions and get back to to let yawl know the results or for more help.

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Last edited by 1970 olds man; 02-10-2005 at 06:31 PM.
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Old 02-10-2005, 08:25 AM
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I've used as much as half a quart to bleed a system. How much fluid have you used so far?
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Old 02-10-2005, 08:55 AM
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Not to sound like a smart guy but are you closing the bleeder before your assistant releases the pedal, cause if you're not it'll just be drawing air back into the lines.

Last edited by oldschoolrods; 02-10-2005 at 08:56 AM.
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Old 02-10-2005, 10:33 AM
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Does your tube go into a jar with some brake fluid already in it? If the pedal is released before the bleeder is closed all the way, it's going to suck whatever is on the other end of the tube back in. You might also try leaving the bleeder open for a few hours and let gravity do the trick. Since you replaced your master cylinder, you will have a lot of air to get rid of and it will seem like forever if you try and bleed the air out of the whole system. Make sure that the brake fluid resevoir doesn't run out of fluid during the bleeding or else you will have to start over.
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Old 02-10-2005, 03:17 PM
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The bleeder or wheel cylinder could be bad, maybe the threads are worn on the bleeder. Other than that you may have a leak somewhere. Hold the pedal down for a while and start looking for leaks.
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Old 02-10-2005, 06:04 PM
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gravity bleeding is the only way to go . it will only take a few minutes for the fluid to bleed. i been doing brake jobs for 30 years , never had anyone pump a pedal yet.
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Old 02-10-2005, 10:25 PM
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I'm interested in gravity bleeding, could someone please elaborate or post a link to somewhere that explains it? I understand what you do but in which order? farthest to closest or all at once? On a level surface etc.

Thanks
Scott
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Old 02-11-2005, 05:41 PM
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Try putting a little white grease around the bleeder threads, sounds like your mistaking air getting around the bleeder threads with air in your system.

BTW you bleed the system from front to back not back to front.
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