porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Drum Brake System > < Door Seal - Leaking
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Brake Rotor/Disc: Specifications

Brake Rotor Specifications

Front 

Diameter:

911 SC .........................................................................................................................................................................................................  282.5 mm
911 Turbo .......................................................................................................................................................................................................  304 mm

Minimum thickness

New:

911 SC ...................................................................................................................................................................................................... 20.5 mm
911 Turbo .................................................................................................................................................................................................... 32 mm

Wear limit:

911 SC ...................................................................................................................................................................................................... 18.5 mm
911 Turbo .................................................................................................................................................................................................... 30 mm

Thickness variation: ........................................................................................................................................................................................  0.02mm

Maximum lateral runout:

Brake disc ....................................................................................................................................................................................................... 0.05 mm
Brake disc - when installed ............................................................................................................................................................................... 0.1 mm

Rear

Diameter:

911 SC ............................................................................................................................................................................................................  290 mm
911 Turbo .......................................................................................................................................................................................................  309 mm

Minimum thickness

New:

911 SC ......................................................................................................................................................................................................... 20 mm
911 Turbo .................................................................................................................................................................................................... 28 mm

Wear limit:

911 SC ......................................................................................................................................................................................................... 18 mm
911 Turbo .................................................................................................................................................................................................... 26 mm

Thickness variation: ........................................................................................................................................................................................  0.02mm

Maximum lateral runout:

Brake disc ....................................................................................................................................................................................................... 0.05 mm
Brake disc - when installed ............................................................................................................................................................................... 0.1 mm

Drum Brake System > < Door Seal - Leaking