brake booster 1982
Thread Starter
Le Mans Master
Joined: Jul 2000
Posts: 6,663
Likes: 162
From: columbia city in
brake booster 1982
my brake booster does not leak air .it does work but it does not hold the car at idle onless you put a lot of foot presure onthe pedal it is not like newer cars that you just tap on the brake s .is this normal for this year vette or is the booster shot and need replacing .can any thing happen if you blow air into the booter ?
Le Mans Master
Joined: Jan 2003
Posts: 6,575
Likes: 1
From: Tuttle OK
Cruise-In VIII Veteran
it works off of vacuum, so don't blow ait into it....you could be running at low vacuum or have a booster problem...I always check the easiest, cheapest things first - like vacuum...
Thread Starter
Le Mans Master
Joined: Jul 2000
Posts: 6,663
Likes: 162
From: columbia city in
i have good vacuume to it and it will hold vacuume .but it does take alot of foot presure to hold the car at stoplight .car idles at 650 to 700 rpm .most cars just a light presure on the pedal will hold it
Race Director
Joined: Jun 2001
Posts: 16,483
Likes: 1
From: The Only Corvette in Gila Bend, Az.
St. Jude Donor '09
How do your brakes feel at speed?
If they seem to work good at speed, then maybe you have other problems, I would look at the tranny not slipping at idle like it should...
If they seem to work good at speed, then maybe you have other problems, I would look at the tranny not slipping at idle like it should...
Thread Starter
Le Mans Master
Joined: Jul 2000
Posts: 6,663
Likes: 162
From: columbia city in
had not thought about the trans .it seems to work fine .when i turn off the motor and pull out the line going into the booster you can here it loosing presure .so it must be getting vacuume and its holding vacuume but it does not work well .i will take another look at the trans .
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Marc, he said it's 650-700 rpm, he had a tight converter, like I went to....I hated that sloppy loose vette converter I had...2000 rpm stall rating....I put in a 800 rpm truck converter...just pull into neutral at traffic lights...
GENE
GENE
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Oh yea, you're right....then the tight converter is what's giving him the idea that the booster is shot. the booster does not hold your rbakes for you, you still have to push the pedal the same amount to displace the same amount of fluid because that's related only to MC bore size and the amount the pistons travel. So, with a tight converter you're already close to fulls tall @ idle, so the trans is actually positively driving the output shaft. Why on earth would you want a 800 stall converter??
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