C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

How do I replace the brake booster?

Thread Tools
 
Search this Thread
 
Old Sep 21, 2009 | 08:45 PM
  #1  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default How do I replace the brake booster?

A freind and I were looking at it the other day and it looks damn near impossible! Has anyone had any expierence doing this project? I really don't want to remove the clutch assembly and the stearing column to do so. Any help would be greatly appreciated!

Thanks!
Reply
Old Sep 21, 2009 | 08:47 PM
  #2  
dannyman's Avatar
dannyman
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
Default

Remove drivers seat, insert yourself headfirst upside down. Warm up exercises before this procedure are a must!
Reply
Old Sep 21, 2009 | 08:51 PM
  #3  
dannyman's Avatar
dannyman
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
Default

Sorry, not really that bad.

Remove master cylinder, tie slightly forward.

Disconnect unit from brake pedal.

Remove four bolts.

Reverse to re-install.

Sounds easy; right?

Long arms and patience a must.

Reply
Old Sep 21, 2009 | 08:53 PM
  #4  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

But we can only see 3 out of the 4 bolts! lol
Reply
Old Sep 21, 2009 | 09:11 PM
  #5  
MotorHead's Avatar
MotorHead
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Default

Originally Posted by 73 454
But we can only see 3 out of the 4 bolts! lol
You could see 3 of them ? Must have been bent like a pretzel under there
Reply
Old Sep 21, 2009 | 09:14 PM
  #6  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

Damn it!! I have a feeling this is going to take all weekend and a case of beer!
Reply
Old Sep 21, 2009 | 09:16 PM
  #7  
1976 corvette's Avatar
1976 corvette
Pro
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2008
Posts: 680
Likes: 3
From: charlotte N.C
Default

I am trying to do the same thing right now. I only see 3 too. For once I am proud to be 5-4, plenty of room to move even with the seat in. Let me know the secret if you get them out.
Reply
Old Sep 21, 2009 | 09:19 PM
  #8  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

In the firewall there is a plack that has four bolts on it... don't remove it! We did and there isn't anything under there! We thought it'd be a hole or something to get to the 4th bolt but we were wrong. Granted we tried this w/ out a hayes or chilton. So i felt pretty stupid about that move.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Sep 21, 2009 | 09:44 PM
  #9  
dannyman's Avatar
dannyman
Melting Slicks
15 Year Member
 
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
Default

Originally Posted by 73 454
But we can only see 3 out of the 4 bolts! lol
Close eyes! Reach in with a stubby wrench and remove the 4th nut. All four are symmetrically located.

Reply
Old Sep 21, 2009 | 09:46 PM
  #10  
Jeff_Keryk's Avatar
Jeff_Keryk
Drifting
20 Year Member
Liked
 
Joined: Feb 2005
Posts: 1,879
Likes: 38
From: Los Gatos CA
Default

1/4" ratchet, long extensions, universal, deep well socket.
It aint that bad...
Reply
Old Sep 21, 2009 | 09:47 PM
  #11  
snoopykissedlucy's Avatar
snoopykissedlucy
Pro
15 Year Member
 
Joined: Apr 2008
Posts: 596
Likes: 6
From: Irving Texas
Default

I just removed my steering column....should I do the booster right now?

My 1976 has been sitting untouched for 10 years....I'm sure the booster rubber is stone stiff.

Any booster manufacturer recommendations? Not doing a concourse restoration.....just a low budget build. Which booster did you buy?

I found out Autozone charges more to buy the booster/master cylinder combo ($140) than separately($112)....go figure!
Reply
Old Sep 21, 2009 | 09:49 PM
  #12  
DZRick's Avatar
DZRick
Le Mans Master
10 Year Member
 
Joined: Jun 2005
Posts: 5,447
Likes: 3
From: Syracuse NY
Default

Originally Posted by 73 454
Damn it!! I have a feeling this is going to take all weekend and a keg of beer!
Fixed it for you.
Reply
Old Sep 21, 2009 | 09:51 PM
  #13  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

Originally Posted by DZRick
Fixed it for you.
Nice!


I just went to Oriely's. And they hooked me up. I'm right in your boat...low budget big block build if there is such a thing hahaha
Reply
Old Sep 21, 2009 | 09:52 PM
  #14  
63Nova's Avatar
63Nova
Racer
 
Joined: Jul 2006
Posts: 277
Likes: 0
From: Big Spring TX
Default

Yeah, it sucks to do for sure. Hope it all goes easy.
Might wanna chase that keg with a gallon of wild turkey.
Reply
Old Sep 21, 2009 | 09:54 PM
  #15  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

Damn it!! I'm going to have more money in booze than I am in the booster itself! lol.
Reply
Old Sep 21, 2009 | 10:08 PM
  #16  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

You can get a booster/master cylinder combo at Advance Auto for ~$80.00 IIRC. To get the booster off you need a ratchet, deep socket, 2 universals (wrapped with electical tape) and an extension. Make sure you have an assitant handy to provide beer and you might want to practice drinking through a straw while laying in your back. I found that removing the clutch safety switch provided a little more access to the upper nut but that operation presents its own set of challenges.



Rick B.
Reply
Old Sep 28, 2009 | 08:33 AM
  #17  
muskegonbrake's Avatar
muskegonbrake
Supporting Vendor
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
All Eyes On Me
 
Joined: Mar 2008
Posts: 576
Likes: 3
From: Muskegon MI
Default

The parts store boosters are rebuilt, but I'm sure they're fine. If you're looking for a new booster at a reasonable price let me know.
Reply

Get notified of new replies

To How do I replace the brake booster?

Old Sep 28, 2009 | 09:30 AM
  #18  
wcsinx's Avatar
wcsinx
Team Owner
20 Year Member
Liked
 
Joined: Mar 2002
Posts: 24,160
Likes: 78
Default

Originally Posted by 72LS1Vette
You can get a booster/master cylinder combo at Advance Auto for ~$80.00 IIRC. To get the booster off you need a ratchet, deep socket, 2 universals (wrapped with electical tape) and an extension. Make sure you have an assitant handy to provide beer and you might want to practice drinking through a straw while laying in your back. I found that removing the clutch safety switch provided a little more access to the upper nut but that operation presents its own set of challenges.



Rick B.
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.
Reply
Old Sep 28, 2009 | 11:29 AM
  #19  
stock76's Avatar
stock76
Burning Brakes
15 Year Member
 
Joined: Oct 2006
Posts: 1,006
Likes: 28
From: Lutz Florida
Default

Patience will help you here. It is as difficult, or more difficult to get the new booster back on as it was to take it off.

Make absolutely certain that you have the clip that attaches the booster to the brake pedal reattached properly. It can be a bit of a challenge too.
Reply
Old Oct 27, 2009 | 12:47 PM
  #20  
73 454's Avatar
73 454
Thread Starter
Instructor
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2008
Posts: 173
Likes: 1
From: Central Iowa
Default

Well we did it! It really wasn't that bad. The brake peddle clip was kind of a pain but we got lucky on that deal getting it back on.


Anyways, we got it all together bled all the brakes and the peddle got hard. So i was kind of excited to have brakes again!

But when we started the car the peddle went spungie again and straight to the floor. I don't know what i'm gonna do. Probably run vaccum tests again to see where i'm leaking.
Reply



All times are GMT -4. The time now is 04:20 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE