 No Significant Brake Pressure, Brake Experts Chime In |
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| Midtowner |
 Jun 26 2006, 10:44 PM
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Ooooo!  Group: Members Posts: 652 Joined: 21-December 04 From: Sunnyvale, CA Member No.: 3,316 Region Association: None  |
I'm betting someone here has an answer. The Car: '73 2.0, 90,000 miles. 19mm master cylinder. Brake proportioning valve. New Zimmerman rotors and Ferodo pads front and rear. New inner and outer front bearings. New fluid. All parts installed by reputable shop in Silicon Valley. Master Cylinder not leaking. The Problem: Pedal pressure only results in gliding to a stop. Unable to lock the wheels.
Any ideas what's going on? (IMG:style_emoticons/default/huh.gif) |
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| DanT |
Jun 26 2006, 10:56 PM
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#2
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Going back to the Dark Side! Group: Members Posts: 4,300 Joined: 4-October 04 From: Auburn, CA Member No.: 2,880 Region Association: None |
Air in proportioning valve, Erik.
Bleed, bleed and rebleed. You may need to do this several times before you get a hard pedal. Proportioning valves are notorious for trapping air. That is one of the reasons I removed mine and placed a T in the line and went to M calipers up front and front 914-4s are now on the rear. Not what I would suggest for a street car...but for my application it works great. Jus keep bleeding....have you checked all the lines to make sure everything is tight, no leaks? Probably just air in the lines. |
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Posts in this topic
Midtowner No Significant Brake Pressure Jun 26 2006, 10:44 PM
Dan (Almaden Valley) Erik,
After the shop did the work, didn't th... Jun 26 2006, 11:18 PM bd1308 mine glides to a stop too...
lol
but my rear R r... Jun 26 2006, 11:19 PM Bleyseng Speed bleeders solve the bleeding issues and make ... Jun 26 2006, 11:24 PM So.Cal.914 If everything is new and tight than it is air, unl... Jun 27 2006, 12:20 AM jk76.914 We're all assuming air in the system, but you ... Jun 27 2006, 12:45 AM Dr. Roger is your pedal firm or does it go to the floor? i ... Jun 27 2006, 12:54 AM Midtowner See? I knew someone would have the answer here... Jun 27 2006, 10:18 AM
jk76.914 |
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