Removing Cylinder Head - Porsche 996 TT Repair Manual

14 Valve keys
15 Upper spring retainer − inlet valve
16 Outer valve spring − inlet valve
17 Inner valve spring − inlet valve
18 Valve stem seal − inlet valve
19 Lower valve retainer
20 Spacer − inlet valve
21 Inlet valve
22 Inlet valve seat ring
23 Valve guide − inlet valve
24 Cylinder head
25 Dowel sleeve
top of page

Removing cylinder head

• Preliminary work: Removing the camshaft housing
1. Remove the seal between the camshaft housing and the cylinder head. Do not use the seal
again.
2. Unscrew cylinder head. Unscrew the twelve internal−serration screws in ½−turn steps in the order
specified. Work according to the order specified in order to avoid distorting the cylinder head.
3. Remove cylinder head. Lift cylinder head straight
upward
WARNING
Risk of damage!
• Under no circumstances may carbon deposits on the cylinders be removed by mechanical means
996420, 996421, 996450, 996451, 996620, 996621, 996650, 996651, 996840, 996841
Removing cylinder head
einordnung
6
12
6
6
6
6
6
6
6
6
1
1
Replace
496