Removing Cylinder Head (Cylinders 1-3)

Information 

• Position hydraulic tappets on a surface you have prepared and labelled yourself in accordance with their installation position in the cylinder head. 
• Components are run in fitting bores. Do not get these mixed up. 
• Do not use magnets for pulling out or removing the hydraulic tappets. Magnets can cause malfunctions. 

1. Remove hydrailic tappets.

   Pull bucket tappets -1-  and switching tappets -2-  out of the fitting bores in the cylinder head.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Hydraulic tappets for valve control

   Set bucket and switching tappets down on a clean, labelled surface > Laying aside hydraulic tappets (shown as an example)  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Laying aside hydraulic tappets (shown as an example)

2. Unscrew screw -1-  on the generator -2-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Screw on generator

3. Unscrew bearing pin -1-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Position of bearing pins

4. Loosen coolant collection unit -1-  .

   unscrew and remove screws -2-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Removing coolant collection unit

5. Loosen lines on the cylinder head.

   Unscrew screw on line bracket -1-  .

   Release and disconnect electric plug connection -2-  .

   Unclip clip -3-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Lines on cylinder head

6. Unscrew screw on coolant regulator -1-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Coolant regulator at cylinder head

   Information 

   • Be careful - cylinder heads are heavy. 
7. Unscrew screws for chain housing -1-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Chain housing screws

8. Unscrew cylinder head screws -1-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Cylinder head screws

9. Remove cylinder head.
10. Check fitting bores of the hydraulic tappets for wear. If you see signs of wear, replace the relevant cylinder heat and any worn hydraulic tappets.
11. Check the sealing face of the cylinder head for distortion and wear during re-installation. Carry out the required repair measures if necessary.
12. Remove and dispose of cylinder head gasket.
13. Check dowel sleeves for signs of damage and replace them if necessary.