OEM 2004 Buick Regal Brake Disc

2004 Buick Regal Brake Disc Parts Questions & Experts Answers

• Q: How to Service and Repair the Brake Disc Using an On-Car Lathe on 2004 Buick Regal?

  A: Service and repair the brake rotor begins with thickness variation testing using conical brake rotor washers (J 45101-100) before lateral runout (LRO) measurement since thick rotor areas may cause brake pulsation issues. First remove rotating components away from caliper and caliper bracket before removing conical brake rotor washers (J 45101-100) and lug nuts from lro measurement. Set up the lathe according to manufacturer guidelines then start finishing the brake rotor by inspecting the hub/axle flange and brake rotor against debris. Inspect the brake rotor thickness anytime after removing chips from the cutting process. Replace the rotor when the thickness measurement goes below the established minimum threshold. The manufacturer recommendations for lathe speed control when finishing a non-directional finish dictate the use of a non-directional tool with 120 grit aluminum oxide sandpaper or a sanding block with 150 grit aluminum oxide sandpaper. Complete cleaning the friction surfaces using denatured alcohol or approved brake cleaner before removing the lathe from the vehicle. Testing of the lro assembled brake rotor component must be performed to ensure maximum specifications are not exceeded. Reinstall the brake caliper then activate the brake pedal several times to lock the rotor before removing conical brake rotor washers j 45101-100 and the lug nuts.