Component Overview

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.

Fig 1: Overview Of Cylinder Head

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Item	Designation	Qty.	Explanation
1	Internal serration nut	12	Lightly oil the sealing surface
2	Washer	12
3	Cylinder-head gasket (identical parts)	1	Replace, observe TOP marking
4	Valve keys	12
5	Upper concave washer on exhaust spring	6
6	Outer valve spring - outlet valve	6
7	Inner valve spring - outlet valve	6
8	Valve stem seal	6
9	Lower valve retainer - outlet valve	6
10	Spacer - outlet valve	6
11	Valve guide - outlet valve	6
12	Outlet valve positioning ring	6
13	Outlet valve	6
14	Valve keys	12
15	Upper spring retainer - intake valve	6
16	Outer valve spring - intake valve	6
17	Inner valve spring - intake valve	6
18	Valve stem seal - intake valve	6
19	Lower valve retainer	6
20	Spacer - intake valve	6
21	Intake valve	6
22	Intake valve positioning ring	6
23	Valve guide - intake valve	6
24	Cylinder head	1
25	Dowel sleeve	1