Installing Lower Timing-Case Cover

Information 

If cold or excessively low-tempered components are sealed to each other by applying sealant, leaks can occur because of condensed water forming or components distorting. Components must be uniformly at least → Temperature: 17°C. 

1. Apply sealing compound to the sealing faces of the lower timing-case cover.
   1. 1.1. Seal face between timing-case cover and cylinder head gasket.
   2. 1.2. The area between the timing-case cover and the oil pan is not sealed until the oil pan is installed (section on Subsequent work).
   3. 1.3. Seal the area between the timing-case cover and engine block → Applying sealing compound.
      Fig 1: Identifying Seal Applying Area On Timing-Case Cover And Oil Pan

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Carefully place timing-case cover on the engine block. When positioning the timing-case cover, make sure that the sealing compound is not displaced by the cylinder head gasket.
3. Fit and then tighten fastening screws for the timing-case cover.
   1. 3.1. Tighten fastening screws - 1 -  between the lower timing-case cover and cylinder head → Tightening torque: 23 Nm (17 ft lbs.). 
      Fig 2: Identifying Lower Timing-Case Cover And Cylinder Head Fastening Screws

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 3.2. Tighten fastening screws between the timing-case cover and crankcase → Tightening torque: 10 Nm (7.5 ft lbs.). 
4. Replace crankshaft sealing ring on flywheel side. → Installing sealing ring for crankshaft flywheel
   Fig 3: Installing Crankshaft Sealing Ring

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.