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Home >> Porsche >> 1986 >> 928 Automatic >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc Brakes >> Removal & Installation >> Rear Disc Brake Pads >> Installation

Rear Disc Brake Pads: Installation

  1. Press back piston to initial position with brake piston retractor. To prevent brake fluid tank from overflowing, draw off small amount of brake fluid before pressing back piston.
    CAUTION: Brake fluid is highly poisonous and must not be siphoned off through a hose.
  2. Clean brake pad bearing sliding surfaces in brake caliper with methylated spirits or cylindrical brush. When servicing brake system, NEVER use solutions containing mineral oils or sharp edged tools.
  3. Check 20 degrees piston position, by holding piston gauge on top guide surface. Adjust with piston turning pliers (if necessary). Insert outer brake pad and press floating caliper frame in direction of brake disc far enough that pin engages in groove of pad backing-plate. See Figure .
  4. Lubricate bearing and sliding surfaces with thin coat of grease, to prevent seizure of brake pads in calipers due to corrosion. Insert inner brake pad. Install cross spring, retaining pins and locks along with wire guide plate.
  5. Press brake pad wear sensor into pad plate in correct position. Depress brake pedal of stopped vehicle firmly several times to move brake pads to their normal operating position. Check level of brake fluid in tank, adding more if necessary.