Disassembly (911 Models)
- Mount caliper flange in vise. Remove dust boot retaining ring and dust boot.
- Install Piston Retainer (P83) to one piston and place thin wooden block between tool and piston to be removed. See Figure .
- Apply light air pressure to fluid inlet hole to remove piston. Remove piston seal from cylinder groove without damaging bore or groove.
- Repeat procedure for opposite piston after reassembly of first piston.