REMOVAL & INSTALLATION
See Figure 1
- Remove the friction pads, brake line, and dust cap, then pry the clamp ring from the housing.
- Using a rubber-backed piece of flat steel, hold one piston in place while blowing the other one out with compressed air (7-8 psi).
- Remove the piston seals from the cylinder bores and examine the bores. Scored bores necessitate replacement of the entire caliper, since the inner surface is chrome plated and cannot be honed.
- Clean the bores with crocus cloth only, never use emery paper.
- Install the new seals, coating them with brake fluid beforehand, then install the (front) piston so that the projection points downward. The rear caliper pistons must be installed with the projection facing downward.
If the projection is in any other position, the brakes may squeal badly.
Floating calipers have only one piston.
- Install the dust cap, clamp ring and heat shield.
- The recess in the heat shield must fit the piston projection, but be above the shield level by about 0.004 in.
The heat shields differ for inner and outer pistons.
- Install the friction pads and the caliper assembly, then bleed the brakes.