Installing Upper Chain Housing Cover

Information 

• Make sure that the bead of sealant you apply is not thicker than the prescribed thickness. Excess sealant can block the lubrication system. 
• The chain housing covers must be installed within 5 minutes of applying the sealant. 

1. Carefully clean sealing faces on upper chain housing cover.
2. Install upper chain housing cover.
   1. 2.1  Carefully apply a continuous bead of sealant with Ø 1.5-2.0 mm all the way around on the sealing face of the chain housing cover.
   2. 2.2  Position upper chain housing cover and fit new screws by hand.
3. Secure upper chain housing cover on right cylinder bank  .
   Fig 1: Upper Chain Housing Cover On Right Cylinder Bank Screws Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Tightening sequence for upper chain housing cover on right cylinder bank

   1. 3.1  Tighten screws in sequence -1 to 8-  .

      > Tightening torque 9 Nm (6.5 ftlb.) 

4. Secure upper chain housing cover on left cylinder bank  .
   Fig 2: Upper Chain Housing Cover On Left Cylinder Bank Screws Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Tightening sequence for upper chain housing cover on left cylinder bank

   1. 4.1  Tighten screws in sequence -1 to 8-  .

      > Tightening torque 9 Nm (6.5 ftlb.) 

5. Install fuel high-pressure line.
   Fig 3: Fuel High-Pressure Line Nuts Tightening Sequence

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Tightening sequence for fuel high-pressure line

   1. 5.1  Coat thread on union nuts -1-  with Microgleit DF 977S. Observe a drying time of at least 5 minutes before fitting.
   2. 5.2  Position high-pressure fuel line and fit union nuts -1-  by hand.
   3. 5.3  Position fuel high-pressure line support and fit new screws -2-  by hand.
   4. 5.4  Tighten screws on high-pressure fuel line support -2-  and union nuts on high-pressure fuel line -1-  in the following sequence:

      Tighten screws on high-pressure fuel line support -2-  .

      > Tightening torque 8 Nm (5.9 ftlb.) 

      > final tightening torque 45° 

      Tighten union nuts on high-pressure fuel line -1-  .

      > Tightening torque of 10 Nm (7.4 ftlb.) 

      > Torque angle 60° 

6. Only after removing upper chain housing cover on right cylinder bank: 

   Install coolant pipe for right cylinder bank -3-  .

   1. 6.1  Replace sealing ring.
   2. 6.2  Position coolant pipe -3-  with support -2-  .
   3. 6.3  Fit and tighten screw securing coolant pipe flange -4-  to cylinder head.

      > Tightening torque 9 Nm (6.5 ftlb.) 

   4. 6.4  Fitting and tightening screw on coolant pipe support -1-  .

      > Tightening torque 9 Nm (6.5 ftlb.) 

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Coolant pipe on right cylinder bank

7. Install coolant pipe for left cylinder bank -3-  .

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Coolant pipe on left cylinder bank

   1. 7.1  Replace sealing rings.
   2. 7.2  Position coolant pipe for left cylinder bank -3-  .
   3. 7.3  Fit coolant pipe screws on left cylinder bank -1 and 2-  and tighten to > Tightening torque 9 Nm (6.5 ftlb.)  .