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1" master and turbo brakes. Peddel soft

Started by smada_85 · 1 Mar 2009 · 7 replies

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smada_85Archived member
I have just put on turbo front brakes (rebuilt) new 1" master cylinder and turbo booster. i have disc rear. My problem is that i cant get the peddel to get very hard. i bench bleed the master and have bleed the brakes about 5 times doing it in every different way i can think of but i cant get the peddel to come good. it still pulls up good there is just a big soft spot at the top, probbably 1st third. Just wondering if anyone else has had this problem or if it is just the way they are?
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SRBMUUArchived member
did you get a new seal between the master cylinder and the booster? sorry just to clarify not sure on vls but usualy majority of cars have a seal
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smada_85Archived member
there is a seal on the booster but i didnt replace that. but if it was that was leaking then my peddel should be realy hard because the booster wouldnt be working properly.
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5spdvlArchived member
There's no seal there.
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smada_85Archived member
there is the seal at the master cylinder end of the booster where the rod goes through. im guessing thats what SRBMUU was talking about.
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Munro-Archived member
getting proper vacuum? Old decaying lines can make your "feel" awful
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smada_85Archived member
yeh it isnt a problem with the peddle being hard it is the peddle being soft. has anyone had the same setup as me and been able to get the peddle to some good?
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LAZYASSArchived member
Are your calipers on the correct side as this is a common problem and causes a soft pedal.The bleeder nipples should be at the top of the caliper or atleast at the highest point.
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