1. Inspect the clutch cover surface for scoring, cracks, or discoloration. Minor scratches or discoloration should be removed with a fine emery cloth.
2. Measure the flatness of the pressure plate with a straight edge and a feeler gauge.
3. Inspect the diaphragm spring fingers for discoloration, scoring, bent, or broken segments and spring ends that are higher or lower than the rest.
4. Measure the wear of the diaphragm spring fingers.