|
There could be a couple issues that cause this.
Most likely problem is a sticking caliper, and you may need to rebuild them.
The seal inside the caliper is designed to pull the piston back into the caliper slightly when the hydraulic pressure is released. This releases the pressure between the pad and the rotor. Over time corrosion can develop on the piston and in the caliper bore, and this can cause the symptoms you describe. I would start by pulling the caliper boot back (between the piston and the caliper) and looking for any signs of corrosion or dirt. If you see any corrosion, or dirt you will need to disassemble, clean, install new seals and boots. Essentially rebuild the calipers. Rebuilding the calipers is not that hard to do. There have been many "How to" discussions on the 911 board, if you need any "How to" help.
Once you have completed rebuilding the calipers, you will need to bleed the brakes and flush out all the old fluid.
__________________
Dave
2014 Cayman S (Awesome car!)
1991 911 Carerra (Semi Refined fun)
1986 911 Carrerra (Raw fun) sold
2001 Boxster S (Refined fun) sold
|