System Specifications

Cylinder Block
Cylinder bore 96 mm (3.78 in)

Thrust-bearing screws securing lower part of crankcase to upper part of
crankcase





M11 x 1.5 x 130 (10 ea.)
Initial tightening 30 Nm (22 ftlb.)
Torque angle 90°
M10 x 1.5 x 117 (10 ea.)
Initial tightening 22 Nm (16 ftlb.)
Torque angle 60°

Lower part of crankcase to upper part of crankcase (cross bolt connection)





M8 x 70 Always use new aluminium screws
Initial tightening 10 Nm (7.5 ftlb.)
Final tightening 90°

Lower part of crankcase to upper part of crankcase
M8 x 35 (2 ea.) 23 Nm (17 ftlb.)
M8 x 50 (2 ea.) 23 Nm (17 ftlb.)

Connecting rod bolts
Use new bolts
First pass 8-10 Nm (6-7.5 ftlb.)
Second pass 20 Nm (15 ftlb.)
Third pass 40 Nm (30 ftlb.)
Final pass Torque angle 90°

Piston classification





1 - Mahle control stamp
2 - Arrow marking in direction of travel
3 - Porsche short numeric code without main or middle number
4 - Cylinder bank identification
5 - Marking area for weight group
6 - Marking area for dimension group
7 - Barcode 128 (short numeric code (without main group) and weight group)
8 - Direction of travel arrow
9 - Mahle short numeric code

Vibration damper to crankshaft M18 x 1.5 x 72
First pass 20 Nm (15 ftlb.)
Second pass 50 Nm (37 ftlb.)
Third pass 100 Nm (74 ftlb.)
Final pass Torque angle 180°