Re: Brake Fluid swap: to suck or blow? - Saab General Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News -
7/1: Members: Log In to See Fewer Ads! |
5/28: SAAB Evolutions/TSN T-Shirts $14
[General |
Members |
C900 |
9000 |
NG900 & OG93 |
93 |
95 |
NG95 |
99 |
Sonett |
Vintage Models |
Clubs |
Other Cars |
FAQs |
Gifts |
Member Photo Galleries |
Member Directory |
Classifieds |
Manuals |
*Buddy Registry |
*Mileage Registry |
Polls |
What's New |
Raffle |
Photo of the Month |
Sponsors]
[Main General Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Brake Fluid swap: to suck or blow?
Posted by Dean (more from Dean) on Sat, 18 Sep 2010 12:30:24
In Reply to: Brake Fluid swap: to suck or blow?, AlS, Sat, 18 Sep 2010 12:03:32
Members do not see ads below this line. - Help Keep This Site Online - Signup
No answer. But:
The only way for moisture to get into these systems is at the [stupid] vented reservoir. So the most contaminated fluid is in reservoir. You really do not want to push that through the system. Suck out as much of the fluid from the reservoir first then replace with new. [This should be done once a year whether flushing or not.] Then you can proceed to do a brake flush.
Never push the brake petal to the floor as the cast iron brake cylinder bore often has rust deposits where the surface is not swept by the rubber cup seals on the piston. If you push the seals over those deposits, the rubber will be cut and the master cylinder may soon fail after that. As the piston leaks and your routine petal action goes deeper, the seals get more and more damage. Place a piece of 2x4 wood behind the petal to limit stroke. If these power bleeders eliminate the need for using the brake petal, great. For work on pads and calipers, you would still need to be mindful of limiting brake petal travel. The best preventative is frequent R&R of the fluid in the reservoir.
Some brake designs have sealed reservoirs that have a rolling diaphragm that eliminate the fluid-air interface. These vented designs are idiotic. Ford had the problem solved in the 1960's or earlier.
posted by 68.91.152...
Posts in this Thread:
- Brake Fluid swap: to suck or blow?, AlS, Sat, 18 Sep 2010 12:03:32
- Re: Brake Fluid swap: to suck or blow?, JimBlake
, Sat, 18 Sep 2010 19:11:06 - Both work, matter of preference., Noel, Sat, 18 Sep 2010 14:28:36
- Re: Brake Fluid swap: to suck or blow?, Dean, Sat, 18 Sep 2010 12:30:24 <-- Viewing This Message
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
StateOfNine.com
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot
Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all
the Site Membership Benefits!