Brake demons
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Burning Brakes
Joined: Aug 2011
Posts: 830
Likes: 288
Brake demons
Hello All
1979 Corvette. Just woke the car up after about 8 months sleeping. Charged the battery and she started right up. After warming up put my foot on the brake pedal to shift and it went to the floor. After pumping it about 10 times it started to get firm. Waited a few seconds and it went to the floor again. Was told that the master and booster were replaced prior to buying as well as calipers. Checked the master and the front reservoir was more then half empty. Don't see any visible signs of leakage but it was also dark out. Before this the brakes worked flawlessly. After doing some searching I am guessing it is either the front lines from the frame to the calipers or the master itself. Just wanted to hear some ideas from others.
Thanks
Bill
1979 Corvette. Just woke the car up after about 8 months sleeping. Charged the battery and she started right up. After warming up put my foot on the brake pedal to shift and it went to the floor. After pumping it about 10 times it started to get firm. Waited a few seconds and it went to the floor again. Was told that the master and booster were replaced prior to buying as well as calipers. Checked the master and the front reservoir was more then half empty. Don't see any visible signs of leakage but it was also dark out. Before this the brakes worked flawlessly. After doing some searching I am guessing it is either the front lines from the frame to the calipers or the master itself. Just wanted to hear some ideas from others.
Thanks
Bill
Race Director
Joined: Oct 2008
Posts: 19,180
Likes: 1,668
From: Long Island
I would check each wheel for signs of a leaking caliper. Sometimes when they sit the calipers seals dry out and they leak
Check if the master is leaking. They usually leak on the firewall or power booster.
Follow the lines and look for fluid on the ground.
Most likely its a caliper. You may have break fluid on the tire, running to the ground.
You can refill it and try to find the leak.
Be careful if one is leaking as it can sling break fluid on to the car.
Check if the master is leaking. They usually leak on the firewall or power booster.
Follow the lines and look for fluid on the ground.
Most likely its a caliper. You may have break fluid on the tire, running to the ground.
You can refill it and try to find the leak.
Be careful if one is leaking as it can sling break fluid on to the car.
Last edited by BLUE1972; Jan 12, 2019 at 05:45 PM.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
If your rear reservoir was still full ( so to speak) but the front was low. It is not the master cylinder....it is a caliper, hose,line or leaking proportioning valve for the front brakes.
Even though the master cylinder can leak out the back....and drip down inside the car, down the firewall or into a brake booster ..it cannot effect the level in the front reservoir. It would lower the fluid level in the rear reservoir.
DUB
Even though the master cylinder can leak out the back....and drip down inside the car, down the firewall or into a brake booster ..it cannot effect the level in the front reservoir. It would lower the fluid level in the rear reservoir.
DUB
