How do I replace the brake booster?
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
Soft "squishy" brake pedals are caused by hydraulic problems, not boosters or vacuum leaks.
Burning Brakes
Joined: Jan 2009
Posts: 1,224
Likes: 1
From: Clarksville Indiana
What I mean is when you go to bleed the brakes, are the bleeders on top of the calipers and not on the bottom of them. Its possible <i think this would apply to vettes also> to install the right caliper on the left side of the car and the left caliper on the right side of the car. They will fit ok but the bleeders will then be on the bottom of the caliper and you wont get the air out of it that way. Its a long shot but I thought it worth asking. If thats not the case I would say gravity bleed a can of fluid through it and see what ya got, then replace the master cylinder<again> if needed.
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Thread Starter
Instructor
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
If i can remember correctly each caliper box was labeled to the proper wheel it was supposed to go to. So we just made the swap.
As for the master, why would it need replaced again? We bench bled it and then put it on the car.
As for the master, why would it need replaced again? We bench bled it and then put it on the car.
Le Mans Master
Joined: Jan 2003
Posts: 6,575
Likes: 1
From: Tuttle OK
Cruise-In VIII Veteran
I fought that for a long time once. Was buying rebuilt calipers at the local parts place and they were still sucking air.
O ring calipers are the only way to go.
Also, get one of these and make sure you have all the air out.
O ring calipers are the only way to go.
Also, get one of these and make sure you have all the air out.
Instructor
Joined: Jul 2006
Posts: 208
Likes: 0
From: Hamden CT
St. Jude Donor '12
Did you use their (AA's) setup yourself? Was the pedal pushrod the right length? I know a lot of us (myself included) have run into issues with the pedal rod being too short on replacement boosters. Currently I'm running a booster with a rod that I lengthened with a coupling nut and a bolt with the head sliced off. 
Burning Brakes
Joined: Oct 2006
Posts: 1,006
Likes: 28
From: Lutz Florida
Pro
Joined: Feb 2002
Posts: 709
Likes: 10
From: Carlsbad CA
Drifting
Joined: May 2005
Posts: 1,629
Likes: 4
From: Somers CT
Here's a good link on rebuilding boosters someone sent me recently, check the last page, there's a set dimension for the booster rod shown.
http://www.corvette-restoration.com/...r_assembly.htm
