Technical Values: Pulleys

Fig 1: Pulley Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Pulley 

1. Water pump pulley
2. Screw, M8 x 16 > Tightening torque 23 Nm (17 ftlb.) 
3. Vibration damper
4. Screw, M18 x 1.5 x 72; use new screw; > Tightening torque 20 Nm (15 ftlb.)  > Tightening torque 50 Nm (37 ftlb.)  > Tightening torque 100 Nm (74 ftlb.)  > Torque angle 180° 
5. Power-steering pump pulley
6. Screw, M8 x 16 > Tightening torque 23 Nm (17 ftlb.) 
7. Tandem pump pulley