OEM 2001 Buick Park Avenue Brake Disc

2001 Buick Park Avenue Parts Questions & Experts Answers

• Q: How to service and repair front brake discs on 2001 Buick Park Avenue?

  A: Routine brake-system maintenance that requires refinishing of brake rotors depends on specific conditions involving excessive corrosion/rust, pitting, cracks, heat spots, excessive blueing discoloration and scoring beyond maximum allowable specifications, lateral runout exceeding maximum specifications and thickness variation beyond maximum specifications. Check each rotor to decide whether refinishing will work with accepted minimal thickness boundaries. To perform refinishing operations follow the directions of the Hub Cleaning Kit (J 42450-A) for cleaning rust from the brake rotor hubs and then follow the manufacturer's brake lathe installation instructions while securing the vibration damping attachments. Check the witness mark of the rotor while running the lathe machine when inserting cutting tools to ensure proper mounting when the mark reaches three-quarters of rotor circumference. The lathe manufacturer's instructions guide the finishing process of rotors while measurements should be taken between each pass to check rotor thickness. Operations must stop when the rotor reaches beyond its minimum acceptability threshold since it requires new installation. The recommended speeds and a non-directional tool fitted with 120 grit aluminum oxide sandpaper or a sanding block with 150 grit aluminum oxide sandpaper should be used to create a non-directional finish. Friction surfaces must be cleaned with denatured alcohol or brake cleaner equivalent before the removal from the lathe operation. For flange cleaning purposes the Rotor/Drum Flange Resurfacing Kit (J 41013) should be used to eliminate corrosion from the wheel bearing flange since neglecting this step could result in higher lateral runout and brake system pulsation.