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Old 12-02-2020, 12:44 PM
1Bad68Cat 1Bad68Cat is offline
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Default Caliper Piston Retracting

Hi everyone,

Need some insight/recommendations. My setup: 66 c10 with 2012 CTS-V brakes front and rear, hydroboost from an Astro Van, and Corvette 1-1/8" bore master. I was doing some maintenance/suspension work and noticed that the caliper pistons/pads have retracted from the rotor approximately 1/8" on each side of each rotor. I pump the brakes to reseat, but later in the evening I saw that the pistons/pads had retracted again. This may explain the not so great pedal first thing in the morning when leaving the house for work. This has been going on for some time but didn't think much of it because brakes always felt good after pumping them in the morning. Does anyone know if the cast iron corvette masters come with residual valves? Would it be a good idea to install 2lb residual valves to prevent the pistons from retracting? What other parts should I look at to prevent this? Appreciate any help I could get.
__________________
Robert Icasas

Projects:
67 Cougar
Art Morrison Sport IFS
3-link Rear Suspension
Coyote w/ D&D Performance Viper t56
Build: https://lateral-g.net/forums/showthread.php4?t=50170

Brother's 1966 Mustang Restomod
Mustang II front suspension
Torque Arm Rear Suspension
Ridetech Shockwaves
5.0 w/ Viper t56
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