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[B]Brakes Failed![/B]

H

Hijinx

Guest
Well, on the way to the office yesterday my brakes failed. Thanks to the new suspension, I was able to do a little fancy driving and kept from crashing. Whew!:eek

Anyhow, took it to a guy I know, and trust, to work on the brake problem. To make a long story short, he is having trouble figuring out what's wrong. First thought was the master cylinder. Replaced that, but still having a problem. The Power Booster seems to be working fine. One really odd thing is that the rear res had very little fluid in it. I checked it a week ago and it was full. I have no fluid on the garage floor, he cant find a leak and yes he did check the power booster. We're stumped! He is calling a few people and still checking, but.......

Has anyone seen this before. OH, he did note a lot of air in the right front brake line. He said he had heard of the early 4 piston calipers sucking air when they went bad. Could that be it?
 

a69vette

Well-known member
Joined
Jun 20, 2001
Messages
264
Location
Valrico, Fl.
Corvette
1969 Triple Black Convertible: 2014 Crys Red Conv
Have you rebuilt the calipers lately? Vette Brakes offers an "O Ring" style instead on the standard lip-seal. This has stopped the small leak I had, and has given me the best braking performance I've ever had. You can rebuild the calipers yourself. It's a very easy job with using the O Rings.

Rick
 

Buckskin7T7V

Well-known member
Joined
May 18, 2001
Messages
144
Location
Ca US
Corvette
1977 Buckskin
Did you air bleed the master cylinder?
You have to clamp the master cylnider in a vice and with a master cylinder bleeder kit, bleed it. You may have had a large air pocket in the MC.
 
H

Hijinx

Guest
Well, I picked it back up this morning. Looks like the spring behind piston in the right front caliper is shot and not holding it against the pad. Left rear is leaking onto the pad and its sucking up all the fluid and burning it off. That's why I have no fluid on the ground. I'll call VBP to see if their rebuild kits will help me. I need to replace the hard lines anyhow. Not sure if these are the original calipers. May have the local Vette shop check them for me. I at least have brakes now. Seems that this problem had siphoned air into the lines and that was causing my failure. Nice to be able to stop now!
 

Buckskin7T7V

Well-known member
Joined
May 18, 2001
Messages
144
Location
Ca US
Corvette
1977 Buckskin
Go to the stainless cups if you can. They will not be harmed by the moisture you get in any brake system. I did the conversion about ten years ago and my brakes have never had a problem. I would not go to the silicon brake fluid however. I understand, that the silicon fluid will begin to boil at high altitude. Here in California, if you drive up to Yosemite the fluid could start to boil-up. I also installed the braided brake hoses. They will not expand, when you need to stand on the brakes. A good investment.
 

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