Brake question, Soft pedal |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Brake question, Soft pedal |
Mike's2nd914 |
Jul 4 2003, 04:52 PM
Post
#1
|
Member Group: Members Posts: 109 Joined: 26-April 03 From: Birmingham, AL Member No.: 616 |
Hey guys, I could use a little help. I just got finished bleeding down the brake system after rebuilding all four calipers. The brakes worked when I started this project but I had one (or more) calipers that were frozen. Now, the calipers all work great and I believe I have bled all the air out of the system but there is still way too much travel in the pedal and I have to pump the pedal a couple of times to get any brakeing. What's up? It took about a month and a half to get everything rebuilt during which time the car sat up with little or no fluid in the brake system. Could the master cylinder, that was working fine before this, could it have gone bad just sitting there? (IMG:style_emoticons/default/headbang.gif)
I appreciate any help or suggestions! |
Anton |
Jul 6 2003, 05:10 AM
Post
#2
|
Royal Orange Group: Members Posts: 161 Joined: 25-March 03 From: The Netherlands Member No.: 473 |
QUOTE(nealnorlack @ Jul 4 2003, 05:17 PM) The problem is when there is no fluid around the seals in the master cylinder, the seals will dry up and shrink. It sounds like your system went without fluid in it for some time. Rebuild or replace the master cylinder, maybe with a 19mm one, bleed the system again using the tips in the previous messages and it should work great. Listen to Elliot. Suggestions like using ATE blue brake fluid or steel braided brake lines are not very helpful. Do you REALLY believe that a different brake fluid will cure the excessive pedal travel such as you decribe??? Or that standard brake lines will leave you with a spongy pedal??? Don't think so. (IMG:style_emoticons/default/devil.gif) Go gor the MC; I had EXACTLY the same problem after revising the rear calipers. The old 16mm MC was swapped for a 19mm 911 type and the problem was solved. On afterwards inspection, the old MC showed some nasty grooves on the inside... (IMG:style_emoticons/default/ohmy.gif) Additionally comes brake system bleeding, adjusting the venting clearance on the rear calipers, and adjusting excessive front wheel bearing play (!). My brake lines were replaced just a few years ago, but in case of doubt, get new ones; it doesn't cost that much. And you know what? A 914 is able to brake! (IMG:style_emoticons/default/MDB2.gif) |
Lo-Fi Version | Time is now: 7th June 2024 - 10:38 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |