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]

C900 Bulletin Board
1979-1993 & 94 Conv [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main C900 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Not that the schmuck who did your brakes had anything
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by JohnB (more from JohnB) on Tue, 12 Mar 2002 13:14:11 Share Post by Email
In Reply to: Do I need a new master cylinder?, Tracy, Tue, 12 Mar 2002 13:01:16
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

to do with it...but often when brakes are done the 'technician' uses the master cylinder to bleed the brake system...and pushes the pedal all the way to the floor when bleeding the system. The little rubber seals in the mastercylinder on the piston then go past their normal operating range into an often corroded/cruddy/abrasive area in the master cylinder. They get abraded or torn and often lead to failure.

But just try to get it covered under warranty by the guy who did your car...unless you happened to see the schmuck bleed your brakes using the brake pedal and hit the floor!

That being said, maybe the master cylinder is just old or you got a bad batch of brake fluid. IMHO Castrol LMA DOT4 is the worst thing you can put in an 87 Saab 900t master cylinder because I destroyed the seals on the OEM cylinder and at least one replacement within 6 months of flushing with the Castrol stuff. I now use ATE Blue or amber brake fluid (the Castrol doesn't seem to have harmed my brother in law's 87 volvo so go figure) and I've always bled my brakes using a mity vac or lately a pressure bleeder.

So go buy a new m/c and they can generally be installed in about an hour, including bleeding the brakes, if you have a pressure bleeder and some jackstands. I bench bleed the m/c after it's installed (but my arms are long enough to cover the two m/c output holes while I pump the brake pedal 'lightly!' and then attach the brake lines. I then bleed the entire system (it probably needed flushing anyway with the bad m/c).

posted by 140.32...

Posts in this Thread:
Alert me when someone posts in this thread:
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.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
 Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).
Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)



StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

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!