Checking Clutch Plate For Wear

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Information

The clutch lining does not wear linearly over the service life of the clutch.
Due to the settling behavior of the clutch lining, more wear occurs at the beginning.
Pad thickness wear will decrease as mileage increases.

Information

Pad thickness measurement must only be done on the flanged side of the rivet head.

Place a commercially available depth gauge on the clutch lining and measure the distance to the rivet head.

Fig 1: Measuring Lining Thickness
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Clutch lining specifications -dimension -X--:
1. 2.1. New clutch lining at measurement position:
  → Minimum measurement: 1 mm
2. 2.2. Wear dimension:
  → Control value: 0.3 mm
3. 2.3. If the measured value is less than the wear limit, the complete clutch unit must be replaced.
  1. 1 - Clutch linings
  2. X - Required dimension and wear dimension
    
    Fig 2: Identifying Clutch Plate Wear Dimension
    Courtesy of PORSCHE CARS NORTH AMERICA, INC.