Why dont both pistons on dual piston front cAlipers activate equally?
05-23-2018, 09:06 PM
#1
Race Director
Thread Starter
Why dont both pistons on dual piston front cAlipers activate equally?
Had funky brake pad and rotor wear on rf passenger side. Basicaly the RF pad wore out and the LF was fine.
the rf rotor was also worn unevenly around the circumference , luckily it could be turned down back into spec.
As im putting it back together, i noticed the dual pistons on both lf and rf caliper do not come out evenly when the brakes are applied. See link to picture.
what can that mean and how do i fix? Is it a simple bleeding issue ?
http://smg.photobucket.com/user/dizw...lo0a.jpeg.html
the rf rotor was also worn unevenly around the circumference , luckily it could be turned down back into spec.
As im putting it back together, i noticed the dual pistons on both lf and rf caliper do not come out evenly when the brakes are applied. See link to picture.
what can that mean and how do i fix? Is it a simple bleeding issue ?
http://smg.photobucket.com/user/dizw...lo0a.jpeg.html
05-23-2018, 09:21 PM
#2
Melting Slicks
Member Since: Jan 2009
Location: Easley/Anderson South Carolina
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With the way you are testing, the fluid will go the path of least resistance. So one piston will move before the other. Once the pistons reach resistance, the force applied will even out to some degree.
On the pad wear, are you saying the out board pad wasn’t worn like the on board? Or the pad portion on the one piston side was worn more causing a “sloped” pad?
I would replace the seals on the calipers and use high quality brake line on the sliders/any where you have metal touching the pad. Don’t get excessive with the lib, just where the pat touches the brackets.
On the pad wear, are you saying the out board pad wasn’t worn like the on board? Or the pad portion on the one piston side was worn more causing a “sloped” pad?
I would replace the seals on the calipers and use high quality brake line on the sliders/any where you have metal touching the pad. Don’t get excessive with the lib, just where the pat touches the brackets.
05-23-2018, 09:41 PM
#4
Race Director
Thread Starter
I think i need to have someone that knows what they are doing disassemble / reassemble the calipers.
they really arent that old (installed arnd 2006) and prob only have 30000 miles on them.
they are the special j55 grand sport painted black calipers with corvette on them.
i want to make sure they are operating properly before reinstalling
they really arent that old (installed arnd 2006) and prob only have 30000 miles on them.
they are the special j55 grand sport painted black calipers with corvette on them.
i want to make sure they are operating properly before reinstalling
Last edited by dizwiz24; 05-23-2018 at 09:42 PM.