OEM 2001 Buick LeSabre Brake Disc

2001 Buick LeSabre Parts Questions & Experts Answers

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

  A: Brake rotor refinishing becomes necessary only when any of the following conditions exist: excessive corrosion, pitting, cracks, heat spots, excessive bluing discoloration, scoring beyond maximum allowable specifications, lateral runout exceeding specifications, or thickness variation beyond specifications. When refinishing is needed for brake rotors use the Hub Cleaning Kit (J42450-A) to clean away any corrosion that exists on the brake rotor hub. Install the brake rotor to the brake lathe according to manufacturer guidelines by properly securing the anti-vibration accessories. Advanced through the lathe speed while guiding the cutting tools to touch the rotor friction surfaces and verify that mounting is correct from the witness mark. The rotor needs to be remounted when the witness mark fails to reach the three-quarter distance around its perimeter. The rotor refining process must follow manufacturer instructions while the final thickness measurement determines whether replacement is needed. The process to acquire a non-directional finish requires following speed parameters and using 120 grit aluminum oxide sandpaper through a non-directional finishing tool or 150 grit aluminum oxide sandpaper with a sanding block when no finishing tool is present. Use denatured alcohol or a brake cleaner equivalent to wipe down all friction areas immediately following completion. Remove the brake rotor from the lathe after finishing then use the Rotor/Drum Flange Resurfacing Kit (J41013) to clean any corrosion from the wheel bearing flange to prevent brake system pulsation and increased lateral runout.