 Rear brake pressure regulator valve, Brake repair |
|
|
|
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. |
|
|
| DamonsCarrera |
 Nov 24 2013, 06:26 PM
Post
#1
|
|
Newbie  Group: Members Posts: 36 Joined: 2-September 12 From: Chicago IL Member No.: 14,886 Region Association: Upper MidWest  |
The brake pedal on my 914-6 is very spongy, even after repeated bleeding with a pressure bleeder. I isolated the problem to the brake-proportioning valve or pressure regulator. I cannot seem to get the brakes properly bled with this valve in the system.
I've read other posts by some here and it seems this valve is a source of some debate . Is there some trick to bleeding the brakes with it? Do I need to bleed the brakes the old-fashioned way, have someone push on the brake pedal? |
   |
 
|
  |
Replies
| Mark Henry |
Nov 24 2013, 08:56 PM
Post
#2
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
If you don't mind the super-fund clean-up mess, crack every connection like it was a bleeder valve. Crack a connector, pump and hold, tighten connector then let off pedal...repeat.
Hell of a mess all over the floor, but it works every time. |
|
|
|
| barefoot |
Jan 25 2014, 12:01 PM
Post
#3
|
|
Senior Member Group: Members Posts: 1,409 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States 
|
QUOTE(Mark Henry @ Nov 24 2013, 09:56 PM)  If you don't mind the super-fund clean-up mess, crack every connection like it was a bleeder valve. Crack a connector, pump and hold, tighten connector then let off pedal...repeat. Hell of a mess all over the floor, but it works every time. Don't need to make a mess on the floor. Partially fill a small glass jar with old brake fluid and connect a hose over the bleeder fitting down into the jar. Baby food jars are ideal. Crack the bleeder valve as calling for a pump and watch bubbles exit the hose as pump is applied. then shut bleeder valve and call for mate to let up. Repeat till no more bubbles, then go to next bleeder. |
|
|
|
Posts in this topic
DamonsCarrera Rear brake pressure regulator valve Nov 24 2013, 06:26 PM
toolguy No trick concerning the proportioning valve. . . a... Nov 24 2013, 06:40 PM DamonsCarrera Thanks for your input toolguy. I guess I will try... Nov 24 2013, 07:17 PM nine9three Everybody needs these: http://speedbleeder.com/ Nov 24 2013, 08:44 PM toolguy Air seeping past the bleeder threads on the calipe... Nov 24 2013, 08:46 PM 914_teener :agree:
+1 Nov 24 2013, 08:47 PM
gothspeed
:agree:
+1
+2 .... :agree: Nov 24 2013, 09:37 PM ConeDodger Don't remove the valve. You will eventually co... Nov 24 2013, 09:05 PM walterolin Speed bleeders (above). I did my '70 4 cyl la... Nov 24 2013, 09:29 PM r_towle After you think you are done, drive it and slam th... Nov 24 2013, 09:47 PM DamonsCarrera Thanks for all the advice guys.
Mark, besides b... Nov 25 2013, 05:56 AM Eric_Shea There is no aftermarket valve.
It is a "pres... Nov 25 2013, 05:24 PM DamonsCarrera I think there are other aftermarket valves availab... Nov 25 2013, 07:47 PM Racer Chris There is nothing about the pressure regulator whic... Nov 25 2013, 11:32 PM Racer Chris
There is nothing about the pressure regulator whi... Dec 22 2013, 10:31 PM Eric_Shea
There's 100's of bias proportioning valv... Nov 27 2013, 04:24 PM DamonsCarrera Sorry for the late response. Work has been a bear... Dec 21 2013, 03:51 PM GeorgeRud I wonder if an additional bleeder at the highest p... Dec 21 2013, 05:41 PM DamonsCarrera The highest point would probably be the at the top... Dec 21 2013, 08:51 PM DamonsCarrera I've decided for now to replace the factory pr... Dec 22 2013, 01:13 PM r_towle
The brake pedal on my 914-6 is very spongy, even ... Dec 22 2013, 04:24 PM Eric_Shea Wrong move. All the Tilton can do is reduce fluid ... Dec 22 2013, 11:48 PM SirAndy Wrong move. All the Tilton can do is reduce fluid ... Dec 23 2013, 03:15 AM Racer Chris
Wrong move. All the Tilton can do is reduce fluid... Dec 23 2013, 08:30 AM Jeff Hail
[quote name='Eric_Shea' post='1973906' date='Dec ... Dec 23 2013, 03:29 PM Eric_Shea I disagree. ;) Dec 23 2013, 02:22 PM Eric_Shea You boys have fun... I agree on the pressure aspec... Dec 23 2013, 04:27 PM DamonsCarrera Don't know what the argument is about. It see... Dec 25 2013, 03:25 PM DamonsCarrera Well, in case anybody is following this thread ...... Jan 24 2014, 09:39 PM Bob L.
So next on the agenda, after making a permanent ... Jan 25 2014, 04:29 PM 914_teener I would think your next move is..... if you want t... Jan 24 2014, 10:23 PM DamonsCarrera Yes, true. I set the valve according to the chart... Jan 25 2014, 10:10 AM stugray Which model tilton did you get? Did it fit easily ... Jan 25 2014, 11:20 AM DamonsCarrera @barefoot
I think Mark was referring to cracki... Jan 25 2014, 12:23 PM 914_teener I have re-read your posts and I have a few questio... Jan 25 2014, 02:54 PM DamonsCarrera @ 914 teener
The difference between a static valv... Jan 25 2014, 05:40 PM 914_teener Ok....so if it is static then the output will be l... Jan 25 2014, 06:05 PM DamonsCarrera @ 914 teener
I'm not sure how you mean to use... Jan 25 2014, 08:03 PM flypfi DamonsCarrera - I realize this is an old post, but... Nov 21 2016, 04:12 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd July 2025 - 05:23 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.