911 Carrera 2 Targa F6-3600cc 3.6L SOHC (1992)
Clutch Disc: Testing and Inspection
Inspecting Clutch Plate For Wear
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Checking clutch drive plate for wear
1 - Lining
2 - Drive plate/lining spring
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Using a depth gage or sliding calipers, measure distance X from surface of lining to rivet head.
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Wear limit X is 0.3 mm (see drawing). When the drive plate is new, this dimension is approx. 1.0 mm.
NOTE: The lining wear is not linear, i.e. not at a steady rate throughout the clutch's operating life. The way in which the lining material beds
down and is compressed initially suggests that greater lining wear is taking place, but as the car is driven further, the rate of wear declines
considerably.