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Section 118 (Clutch System): General Description: Specifications

WARNING: This page is about a different car, the 2002 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
General Specifications Chart -- Clutch

Model NON-TURBO TURBO
Clutch cover Type Push type Pull type
Diaphragm set load kg (lb) 580 (1279) 830 (1830)
Clutch disk Facing material Woven (Non asbestos)
O.D. x I.D. x thickness mm (in) 225 x 150 x 3.5 (8.86 x 5.91 x 0.138) 230 x 150 x 3.5 (9.06 x 5.91 x 0.138)
Spline O.D. mm (in) 25.2 (0.992), (No. of teeth: 24)
Clutch release lever ratio 1.6 1.7
Release bearing Grease-packed self-aligning
Clutch pedal Full stroke mm (in) 130 - 135 (5.12 - 5,31)
Free play mm (in) 10 - 20 (0.39 - 0.79) 3 - 13 (0.12 - 0.51)
Clutch disk Stroke mm (in) 12 - 13.6 (0.473 - 0.535) 13.3 - 14.7 (0.524 - 0.579)
Clutch disk Depth of rivet head mm (in) Standard 1.3 - 1.9 (0.051 - 0.075)
Limit of sinking 0.3 (0.012)
Limit for deflection mm (in) 1.0 (0.039) at R = 1.07 (4.21) 0.8 (0.031) at R = 110 (4.33)
I.D.: Inner diameter 
O.D.: Outer diameter