System Specifications

Crankcase halves
Initial tightening 5 Nm (3.5 ft lb.)
Initial tightening 12 Nm (9 ft lb.)
Tightening torque 15 Nm (11 ft lb.)
Torque angle 75°
Final tightening - torque angle 75°





Through-bolt screws on crankcase
Three M8 x 35 screws, position 15, 16, 17.
Initial tightening 5 Nm (3.5 ft lb.)
Torque angle 70°
One M8 x 120 screw, position 33.
Tightening torque 33 Nm (24 ft lb.)
15 screws - one M6 x 40, 18, 14 M6 x 25 19, 32.
Tightening torque 13 Nm (9.5 ft lb.)





Pistons





Piston markings
1 - Manufacturer's logo
2 - Date of production
3 - Manufacturer's drawing number
4 - Weight group
5 - Arrow marking for intake side (visible on new pistons)
6 - Data matrix code
7 - Porsche part number
8 - Dimensional group

Weight groups





Piston shank diameter





Dimensional groups





Piston rings








Vibration damper 60 Nm (44 ft lb.)
Tighten screws uniformly