LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 509 (Disc Brakes & Drum Brakes) >> Adjustments & Inspections >> Disc Brakes >> Brake Rotor Thickness Measurement

Brake Rotor Thickness Measurement

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Reposition and support the caliper and the brake pads.
  2. Clean the friction surfaces of the brake rotor with denatured alcohol, or an equivalent approved brake cleaner.
  3. Using a micrometer calibrated in thousanths-of-a-millimeter, or ten-thousanths-of-an-inch, measure and record the thickness of the brake rotor at 4 or more points, evenly spaced around the rotor. Ensure that the measurements are only taken within the friction surfaces and that the micrometer is positioned the same distance from the outer edge of the rotor, about 0.5" (13 mm), for each measurement.
  4. Compare the measurements to the specifications. See DISC BRAKE SPECIFICATIONS  . If the smallest measurement exceeds the discard thickness specification, you may be able to resurface the brake rotor, depending upon the thickness variation and the surface condition. See BRAKE ROTOR THICKNESS VARIATION MEASUREMENT  . If the smallest measurement is equal to or less than the discard thickness specification, replace the brake rotor.