Installing Cylinder Head

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Ingress of dirt

Danger of material damage due to blocked oil bores/oil ducts.

→ Absolute cleanliness is essential when working on the engine.

→ Lay removed engine parts on a clean base and make sure to cover them.

→ Use the cover for dust protection when fitting the engine NR.165 on the engine assembly support.

Replace cylinder-head gasket. The TOP marking must be clearly visible.

Fig 1: Identifying Cylinder-Head Gasket
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Slide the cylinder head evenly over the studs from above. When doing so, make sure that the sealing surface is not damaged.
Coat the sealing surface of the multiple-tooth nuts lightly with oil.
1. 3.1. Fit twelve M12 multiple-tooth nuts and washers.
Tighten multiple-tooth nuts on the cylinder head according to the specified tightening torque (see table below) and sequence → Tightening sequence for cylinder head nuts .

Fig 2: Tightening Sequence For Cylinder Head Nuts
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Tightening sequence	Designation	Value	Unit
Step 1	Initial tightening	30 (22)	Nm (ft. lb.)
Step 2	Loosen in reverse order
Step 3	Joining torque	20 (15)	Nm (ft. lb.)
Step 4	Subsequent tightening	20 (15)	Nm (ft. lb.)
Step 5	Final tightening	75 ± 5	Degrees (torque angle)
Step 6	Final tightening	75 ± 5	Degrees (torque angle)