C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Weird Brake Master problem

Thread Tools
 
Search this Thread
 
Old Aug 17, 2007 | 11:12 PM
  #1  
Snuffy's Avatar
Snuffy
Thread Starter
Instructor
 
Joined: Sep 1999
Posts: 220
Likes: 0
From: Alberta, Canada
Default Weird Brake Master problem

My brakes are working fine on my 88, as fine as Corvette brakes do anyway, but lately over time ai noticed that the one reservoir loses level and the other one gains level. There are no visible leaks and overall I am not losing fluid.
Is it possible that the seal between the cylinder plungers is leaking and allowing fluid to "leak" from one reservoir to the other? Does this mean a new cylinder?
Anyone have any experience with this?
Reply
Old Aug 17, 2007 | 11:40 PM
  #2  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

Sure sounds like it.
Reply
Old Aug 17, 2007 | 11:45 PM
  #3  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
Default

What he said
Reply
Old Aug 18, 2007 | 01:23 AM
  #4  
Vett-eight-nine's Avatar
Vett-eight-nine
Pro
10 Year Member
 
Joined: Jan 2004
Posts: 565
Likes: 0
From: Toronto ON
Default

Originally Posted by Snuffy
My brakes are working fine on my 88, as fine as Corvette brakes do anyway, but lately over time ai noticed that the one reservoir loses level and the other one gains level. There are no visible leaks and overall I am not losing fluid.
Is it possible that the seal between the cylinder plungers is leaking and allowing fluid to "leak" from one reservoir to the other? Does this mean a new cylinder?
Anyone have any experience with this?
Let me know if you end up finding a rebuild kit. My search has turned up nothing.
Reply
Old Aug 18, 2007 | 07:24 AM
  #5  
pbergmann's Avatar
pbergmann
Pro
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2007
Posts: 641
Likes: 126
From: Chandler Az
Default

Try NAPA it probably a special order but it should be available. Word of caution do not take the reservoir bowls off unless you have to. Getting them back on is a major PIA and almost impossible.
Also...sometimes the is NOS on ebay about same $$ as a rebuild kit.
Reply
Old Aug 18, 2007 | 11:18 AM
  #6  
coupeguy2001's Avatar
coupeguy2001
Le Mans Master
15 Year Member
 
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Default master

Auto zone has the rebuild kits for $103. They also have a rebuilt unit for $125, They also have new units for $165. depending on your area.
I bought a rebuilt, and have no problems. and I kept my old one. The core charge was only $20.
When a rebuild kit comes up that's reasonable, I will rebuild it and have a spare.
Reply
Old Aug 18, 2007 | 09:29 PM
  #7  
Da Mail Man's Avatar
Da Mail Man
Safety Car
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 3,845
Likes: 30
Default

Originally Posted by AGENT 86
What he said
..... ...
Reply
Old Aug 19, 2007 | 08:30 AM
  #8  
89 Bob L's Avatar
89 Bob L
Burning Brakes
10 Year Member
 
Joined: Dec 2000
Posts: 1,161
Likes: 0
From: Orangeburg, NY
Default

Reply

Get notified of new replies

To Weird Brake Master problem

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

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

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo




All times are GMT -4. The time now is 12:59 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
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-7
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-8
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-9
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