Question about long tube method of brake bleeding |
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Question about long tube method of brake bleeding |
computers4kids |
Nov 26 2011, 10:42 AM
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#1
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
I have some air trapped in my brakes and want to try the long tube method to purge. With the tubes in the resevoir and connected to each caliper nipple, I understand the idea of cracking each nippple open and pumping until the cows come come.
What puzzles me is the idea of injecting air back into the system using this method. Until the lines are full of fluid, won't you be sucking air on each pump of the brakes back throuh the nipple from the empty tubes? I have a motive bleeder but can't seem to get all the air out. It takes a couple pumps to get a hard pedal. New MC All new rebuilt calipers, etc Used the pedal pump and release method Flushed a 1/2 gallon of fluid throuh the calipers Rear vented to .004 Driven the car and repeated the bleeding with motive and two people Yes, the front caliper nipples are pointed up No speed bleeders (IMG:http://www.914world.com/bbs2/uploads/post-419-1182989448.jpg) |
Mike Bellis |
Nov 26 2011, 12:30 PM
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#2
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None |
My old man tought me a trick... with the system sealed, slam on the brake pedal as fast as you can. Then lift up on the pedal as slow as you can. This forces the bubbles toward the calliper. Do this a few times and bleed the brakes again. Repeat until you have all the bubbles out.
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computers4kids |
Nov 26 2011, 02:10 PM
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#3
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
My old man tought me a trick... with the system sealed, slam on the brake pedal as fast as you can. Then lift up on the pedal as slow as you can. This forces the bubbles toward the calliper. Do this a few times and bleed the brakes again. Repeat until you have all the bubbles out. I've tried the slam on your brakes but not the "lift up on the pedal slow." I just want to make this the last time I pull the wheels to bleed (IMG:style_emoticons/default/biggrin.gif) |
Mike Bellis |
Nov 26 2011, 02:33 PM
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#4
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None |
My old man tought me a trick... with the system sealed, slam on the brake pedal as fast as you can. Then lift up on the pedal as slow as you can. This forces the bubbles toward the calliper. Do this a few times and bleed the brakes again. Repeat until you have all the bubbles out. I've tried the slam on your brakes but not the "lift up on the pedal slow." I just want to make this the last time I pull the wheels to bleed (IMG:style_emoticons/default/biggrin.gif) Theory is: lifting up slow will prevent the bubbles traveling back to their original position. |
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