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#1050196 - 04/21/17 12:27 PM Hydraboost brakes  
Joined: Aug 2007
Posts: 1,007
pearl83SS Offline
pearl83SS  Offline

Joined: Aug 2007
Posts: 1,007
A while ago I swapped my vacuum assisted brakes for a hydroboost setup out of a turbo Regal. They are all Factory parts so it bolted right up. However ever since then my pedal has been extremely mushy and my brakes inconsistent. I tried bleeding the calipers again and I got a few bubbles out of them, but I am wondering if the master cylinder was not bled properly? Is there a chance that air is trapped in there? I bench bled the master cylinder with the bleeder kit and thought I got it all, but maybe is it possible that my plunger isn't going the full stroke of the master cylinder?

83 ss monte, 383c.i., Holley 750, super 40's, 350 trans, 9" w/ 3.70's
#1050203 - 04/21/17 03:35 PM Re: Hydraboost brakes [Re: pearl83SS]  
Joined: Apr 2011
Posts: 828
Hunter79764 Offline
Hunter79764  Offline

Joined: Apr 2011
Posts: 828
Grand Prairie, Tx
Always possible it didn't bleed the whole way. I'd give it another shot when you can...

Sometimes you just need a bigger hammer...

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1050204 - 04/21/17 03:37 PM Re: Hydraboost brakes [Re: pearl83SS]  
Joined: Apr 2008
Posts: 956
84ss355*4spd Offline
84ss355*4spd  Offline

Joined: Apr 2008
Posts: 956
Air for sure.when u bled it on the bench it should be barelt moving when bled because will have pressure. Plunger maybe move an 1/8 . Or u have a eheel cylinder seepin in the drum and making it go spongy if rest checks out

84ss current restoration
86 ss gone
85 ss new
85 z28 tpi
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