Inspect diaphragm spring wear which is in contact with a concentric slave cylinder bearing.
Check the clutch cover and disc surface for wear or cracks.
Check the clutch disc lining for slipping or oil marks.
Measure the depth from a clutch lining surface to a rivet. If the measured value is less than the specification below, replace it.
Standard value
Clutch disc thickness(A)[when free] :
8.3 ± 0.3 mm (0.3268 ± 0.0118 in.)
Clutch disc rivet depth(B) : 1.1 mm (0.0433 in.)