Installing Lower Chain Housing Cover (V6 Turbo)

Information 

If a cylinder-head gasket is kinked or damaged, it must be replaced.

1. Check cylinder-head gasket for damage.

   Information 

   • The liquid sealant Loctite 5970-BM must be used. 
   • The bead of sealant you apply must not be thicker than the prescribed thickness. Excess sealant can block the lubrication system. 
   • Sealant must not get into the threaded bores. 
   • The chain housing cover must be installed within 5 minutes of applying the sealant. 
2. Carefully apply a continuous bead of sealant -1-  with a thickness of 3 mm all the way around on the sealing face of the chain housing cover.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Applying sealant on chain housing cover

3. Install lower chain housing cover.
   1. 3.1  Position lower chain housing cover, but do not press it on yet. Check that the dowel sleeves are fitted correctly.
   2. 3.2  Replace screws for lower chain housing cover.
   3. 3.2.1  Replace aluminium screws with steel screws.
   4. 3.3  Fit new screws on lower chain housing cover -1 to 20-  and screw in as far as they will go by hand.
   5. 3.4  Tighten screws for lower chain housing cover in the specified tightening sequence.

   Screws for lower chain housing cover -20-  :

   Initial tightening 3 Nm (2 ftlb.) 

   Screws for lower chain housing cover -1 to 19-  :

   Initial tightening 3 Nm (2 ftlb.) 

   Screws for lower chain housing cover -20-  :

   > Tightening - torque 8 Nm (6 ftlb.) 

   Screws for lower chain housing cover -1 to 19-  :

   Final tightening + 90° 

   Screws for lower chain housing cover -20-  :

   Final tightening + 90° 

   Fig 1: Lower Chain Housing Cover Screws Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Tightening sequence for lower chain housing cover

4. Fit and tighten screw on coolant line holder -2-  .

   > Tightening - torque 9 Nm (6.5 ftlb.) 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Lower chain housing cover