Sponsored Content
m
Lifetime Member
Send PMEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2572
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
.......... A bad brake booster. What can I look for,and how can you tell? GOOD brakes, lots of pedal. They have been bled several times. THANKS
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
SPONSOR AD:: (Our Sponsors help support Vette Registry)
Why are you looking at this if the brakes are good? I was always taught to check you pedal with the car off and on. There should be better feel on the pedal with the engine running. You could also plug the vaccum line and see the difference.
Barry
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
m
Lifetime Member
Send PMEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2572
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
Maybe I should say the pedal is REAL close to the floor. LOTS of pedal movement, but good brakes.Be the first to like this post
Sign In to Like this post
Sign In to Like this post
Lifetime Member
Moderator
Send PMModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22715
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
A bad booster will give you a hard pedal.
If the pedal is going(almost) to the floor, but the car does stop, you have:
Worn pads/rotors
Low fluid
Air in the system
Mis-adjusted pushrod from pedal to booster
Will the pedal "pump up"? Or does it always go down like that?
What car are we dealing with here?
What does the pedal do without the engine running?
Does the pedal go down when the engine is started?
Adams' Apple 2011-08-02 10:03:00
If the pedal is going(almost) to the floor, but the car does stop, you have:
Worn pads/rotors
Low fluid
Air in the system
Mis-adjusted pushrod from pedal to booster
Will the pedal "pump up"? Or does it always go down like that?
What car are we dealing with here?
What does the pedal do without the engine running?
Does the pedal go down when the engine is started?
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
m
Lifetime Member
Send PMEquinunk, PA - USA
Joined: 10/31/2007
Posts: 2572
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
Never gave rod adjustment a thought. Pads and rotors are good. System has been bled multiple times. Fluid is good and no leaks. I am still of the opinion that the system has air in it. Can't seem to get it out. Brakes have been the same since I bought it. 75' base "T" top.
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
Maybe then the rod IS mis adjusted! It's worth a try!
Barry
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
Possibly the master cylinder needs rebuilt or replaced?
Joe T
Be the first to like this post
Sign In to Like this post
Sign In to Like this post
in Forum: C3 Engines, Driveline and Handling
Sponsored Content