Checking clutch plate for wear

NOTE: It should be noted that the clutch lining does not wear linearly over the service life of the clutch. Due to the settling behavior of the clutch lining, wear can be expected to be greater at the beginning. However, pad thickness wear will become less as mileage increases.

Fig 1: Measuring lining thickness

Courtesy of PORSCHE OF NORTH AMERICA, INC.

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

1. Place a commercially available depth gauge on the clutch lining -1- and measure the distance to the rivet head. See Fig 2.

Fig 2: Sectional view

Courtesy of PORSCHE OF NORTH AMERICA, INC.

The wear dimension -X- measures 0.3 mm. If a smaller value is measured, the clutch drive plate must be replaced. When new the measured value is more than 1mm. See Fig 2.