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Old Apr 6, 2019 | 06:04 PM
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Default Brake problems

Hey Guys need some help. I have a 1966 Corvette problem is a few days after bleeding the system I get a soft pedal. I have bled the car 3 times, not losing any fluid. I can't figure out how air is getting into the system. Any help would be most appreciated. Thanks.
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Old Apr 6, 2019 | 06:42 PM
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If you are getting a soft pedal after you drive the car, check your rotors with a dial indicator. They may have excessive run out. I aim for under .003. A solution to your problem if the run out is excessive, you could install O-ring pistons. They are more forgiving. Jerry
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Old Apr 6, 2019 | 06:59 PM
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Originally Posted by funit1
Hey Guys need some help. I have a 1966 Corvette problem is a few days after bleeding the system I get a soft pedal. I have bled the car 3 times, not losing any fluid. I can't figure out how air is getting into the system. Any help would be most appreciated. Thanks.
One possibility is through the rear seal of the master cylinder. Get under the dash and check the carpet, and the actuating rod where it comes through the firewall for signs of brake fluid.
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Old Apr 7, 2019 | 08:33 AM
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Thanks Jerry I'll try that.
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Old Apr 7, 2019 | 08:34 AM
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No fluid leak anywhere.
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Old Apr 7, 2019 | 09:45 AM
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Originally Posted by funit1
No fluid leak anywhere.
Well, when you bleed the brakes, are you getting air out with the fluid?
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Old Apr 7, 2019 | 11:10 AM
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Yes
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Old Apr 7, 2019 | 12:18 PM
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Originally Posted by funit1
Yes
Read the rotor runout comments in post #2. In addition to rotor runout, I'd suspect you might have some calipers in need of attention.
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