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| Trouble bleeding brakes | Rating: 
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| Posted: 02-22-2007 09:28 pm |
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1st Post |
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Jim Collins Member
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After rebuilding both calipers up front, drivers side bled quickly, but right side wont. We were able to remove the line by the pressure differential warning actuator and 'reverse' vacuum, in case there was blockage, and it was clear. When reattaching the line and going back to the right caliper, we were not successful. Could this be a bad actuator? What else could be the problem? We tried both a vacuum bleeder and just pumping the pedal. In both cases, air was coming through, but after 10 minutes, no fluid. Thanks for any help, Jim '73 JH, 11749
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| Posted: 02-23-2007 12:40 pm |
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2nd Post |
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edward_davis Member 
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Just a guess here, but have you replaced the soft lines as well? I understand that somemtimes the old ones get flaps of cast off rubber in them that can act as intermittent one-way valves. I'm sure someone else will have a better idea. I dont think it could be the PDWA, though, since both front brakes attach to the same 'chamber' of the device. I suppose there could be a blockage in only one of the passages coming out of it. When you pump the pedal while that bleeder screw is open, do you get air pressure, or is the air static in the line? I'm just thinking that a 'one-way valve' that prevented pressure from getting to the caliper wouldn't stop your test of vacuuming at the PDWA connection. I hope someone else can be of more help -Edward
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| Posted: 02-23-2007 03:07 pm |
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3rd Post |
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Judson Manning Member 
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Jim, Patience young Jedi...If air was continuing to come through for 10min, it had to be coming from somewhere. Either the M/C, lines, or the caliper itself. My guess is you may have overlooked something on the Passanger side caliper during the rebuild and/or reassembly. Judson
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| Posted: 02-23-2007 07:39 pm |
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4th Post |
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Jim Collins Member
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I took off the culprit caliper and replaced the little black washer and that did the trick. I just love it when something that should be so simple can turn into an ordeal. Thanks for the replies! Jim
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