home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 11-11-2017, 09:16 PM   #1
Axd3nt
Board Member
 
Join Date: Feb 2015
Location: Pittsburgh
Default Volvo 240 Brake Master Cylinder question

So I have replaced the brakes and rebuilt the calipers. I flushed the system and still experience the same sensation in the brake pedal. It will start firm, as if stopping, sits for a second, but slowly sinks maybe 1/4 ways to the floor, but never to the floor. I suspect the master cylinder seal is bad.

Now, would a master cylinder ever cause a CEL to come on?

And is there a trick to taking out the reservoir as not to snap the plastic on the MC?
Axd3nt is offline   Reply With Quote
Old 11-11-2017, 10:51 PM   #2
freevolvos
Board Member
 
Join Date: Jan 2011
Location: hillpoint
Default

sounds like a bad m.c. i don't know how it would cause a c.e.l. not sure on separating the plastic
freevolvos is offline   Reply With Quote
Old 11-11-2017, 10:55 PM   #3
Redwood Chair
K-jet For Life
 
Redwood Chair's Avatar
 
Join Date: Mar 2007
Location: SF CA
Default

A new ATE master cylinder will come with a new reservoir already installed.

If it's been leaking for a while it may have softened and ruined the brake booster seal.
__________________
Raise The Lowered


Image hosted by servimg.com

Quote:
Originally Posted by hiperfauto View Post
Folks on here don't know a good deal when they see it.
how psi a stock can support?

Redwood Chair is online now   Reply With Quote
Old 11-14-2017, 08:49 PM   #4
Axd3nt
Board Member
 
Join Date: Feb 2015
Location: Pittsburgh
Default

Quote:
Originally Posted by Redwood Chair View Post
A new ATE master cylinder will come with a new reservoir already installed.

If it's been leaking for a while it may have softened and ruined the brake booster seal.
Good call. I'd say it's been leaking for approximately 6 months (2000 miles). Might be better to do the whole shebang.
Axd3nt is offline   Reply With Quote
Old 11-15-2017, 11:33 AM   #5
Redwood Chair
K-jet For Life
 
Redwood Chair's Avatar
 
Join Date: Mar 2007
Location: SF CA
Default

Pull it off first and take a look, good cheap boosters are hard to find now unless you have good junkyards nearby.

Or post in wanted and pay your ride I guess...
Redwood Chair is online now   Reply With Quote
Old 11-15-2017, 11:41 AM   #6
nel621
Board Member
 
Join Date: Apr 2009
Default

Maybe just a bad check valve? Cheaper than a booster just to try.
nel621 is offline   Reply With Quote
Old 11-15-2017, 11:52 AM   #7
Redwood Chair
K-jet For Life
 
Redwood Chair's Avatar
 
Join Date: Mar 2007
Location: SF CA
Default

Quote:
Originally Posted by nel621 View Post
Maybe just a bad check valve? Cheaper than a booster just to try.
Ya give it the suck / blow test when you have it out obviously...
Redwood Chair is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 02:25 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.