Ranfis Posted November 30, 2014 Share Posted November 30, 2014 I recently purchased a 98 outback the brake lines were so rusted they were leaking in some places, I replaced the lines and the master cylinder, I primed it before installation, bled the brakes the old way 2 men system, the brakes continue to go to the floor, I tryied the vacuum sytem and still the brake pedal keeps going to the floor,I don't see any leaks any where any sugestions I don't have much hair left to pull Link to comment Share on other sites More sharing options...
john in KY Posted November 30, 2014 Share Posted November 30, 2014 I would bench bleed the MC again and start over. Remove the MC lines, replace them with some short lines bent back into the reservoirs and you don't have to remove the MC. Link to comment Share on other sites More sharing options...
porcupine73 Posted November 30, 2014 Share Posted November 30, 2014 What line section(s) did you replace? The rears from under the passenger rear seat to both rear wheels tend to be the ones that rust out. It could still be leaking above the fuel tank or somewhere back there if you didn't do the entire rear lines. Having the pedal go beyond its normal travel i.e. to the floor is bad esp on older vehicles. Someone mentioned there is often rust in the master cylinder bore beyond its normal travel and that can cut up the seal 'cups' in the master. Link to comment Share on other sites More sharing options...
Ranfis Posted November 30, 2014 Author Share Posted November 30, 2014 I replaced the entire line from the master cyl. to the junction under the seat and the one from under the seat over the fuel tank to the rear calipers, I don't see a leak nowhere the master cylinder is brand new, I used 3 pints of brake fluid to bleed using different methods and I primed the master cyl. before installation, it's just driving me crazy. Link to comment Share on other sites More sharing options...
quazimoto Posted December 9, 2014 Share Posted December 9, 2014 Did you bleed the calipers in the correct sequence? Link to comment Share on other sites More sharing options...
Ranfis Posted December 16, 2014 Author Share Posted December 16, 2014 I want to start by thanking everybody that participates inthis forum you provide so much greatinformation and encouragement it isgreatly appreciated, Well, finally fixed the brakes going to the floor on my 98outback, after pulling a lot of my hair trying to bleed them I tried differentways to no avail, finally asked a friend to help me and the first thing henoticed was the front calipers were inverted the right one was on the leftand the left on the right side making the bleed valve being at the bottomand impossible to bleed properly , once we reverted them and bled the system thebrakes started to work the way they are supposed to, the moral of the story sometimes we are in ahurry to do things that overlook small details with great consequences. 1 Link to comment Share on other sites More sharing options...
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