You still have air in there. If it has abs, be sure there is not a bleeder screw on that pump somewhere. The MC is probably fine. Be sure any calipers are on right side up; if the bleed screws are not on the top then the sides are switched and it will never firm up. You should run quarts of brake fluid through the lines and be sure to close the screws while fluid is still coming out. Push the pedal while pressurizing the system to bleed the MC also. Once the fluid is coming out clean you can just dump it back into the pressure bleeder and run it through again.
On Wed, May 22, 2019, 3:58 PM Dan Penoff via Mercedes <mercedes@okiebenz.com> wrote: > Should have used the pressure bleeder first. That is one of the best labor > saving devices ever invented. > > -D > > > On May 22, 2019, at 6:51 PM, Kaleb Striplin via Mercedes < > mercedes@okiebenz.com> wrote: > > > > Yea it pretty much goes to the floor with very little resistance. I bet > the mc was flakey anyway then finished it off pushing it all the way to the > floor bleeding it (wife) > > > > Sent from my iPhone > > > >> On May 22, 2019, at 5:35 PM, Dan Penoff via Mercedes < > mercedes@okiebenz.com> wrote: > >> > >> If you pumped the brakes all the way to the floor there’s a chance you > damaged the cups on the piston in the master cylinder. Never, ever press a > brake pedal all the way to the floor when bleeding. > >> > >> Does it just go straight to the floor or does it bleed down somewhat > slowly with your foot on the pedal? > >> > >> Adjust those rear drums out before you do anything else. That won’t > cure your lousy pedal, but it eliminates a lot of slop in the system. > >> > >> -D > >> > >>> On May 22, 2019, at 6:25 PM, Kaleb C. Striplin via Mercedes < > mercedes@okiebenz.com> wrote: > >>> > >>> I have been working on the brakes on my Suburban. All new brake > shoes, hardware, and wheel cylinders on the back. Brakes were weak before > but were OK, which I attributed to the leaking rear wheel cylinders. I put > everthing back together and started doing the old fashioned bleeding with > pushing on the brake pedal and opening bleeder screw. It was not working > that great mainly because it is hard to get to the bleeder screws on the > back. I then ordered a speedi bleeder pressure bleeder. It arrived today, > I hooked it up and pressured it up. I then opened the back until all the > air was out and new fluid was coming in. Also did the fronts. Afterward > it just feels like it has no brakes at all, pedal seems to be going nearly > to the floor. I am sure the rear drums are not adjusted all the way out > yet but I would not think that would cause it to go to the floor. Does > this seem like I still have air in the lines or does this seem like a bad > master cylinder? I need to get this finished up tomorrow. > >>> > >>> > >>> --- > >>> This email has been checked for viruses by AVG. > >>> https://www.avg.com > >>> > >>> > >>> _______________________________________ > >>> http://www.okiebenz.com > >>> > >>> To search list archives http://www.okiebenz.com/archive/ > >>> > >>> To Unsubscribe or change delivery options go to: > >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >>> > >> > >> > >> _______________________________________ > >> http://www.okiebenz.com > >> > >> To search list archives http://www.okiebenz.com/archive/ > >> > >> To Unsubscribe or change delivery options go to: > >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > >> > > > > > > _______________________________________ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
