Installing Crankshaft

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Bearing shell

1. 1.1  Choose new bearing shells -1-  with the correct colour marking in accordance with the table.
2. 1.2  Coat bearing shells -1-  with oil.
3. 1.3  Insert bearing shells -1-  on the relevant crankshaft bearing and bearing cover and make sure that the guide lugs -2 and 3-  are fitted correctly.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Crankshaft

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Thrust washers on crankshaft bearing 4

1. 3.1  Coat thrust washers -1 and 2-  with oil.
2. 3.2  Insert upper thrust washer (crankcase) -2-  into the crankcase in such a way that the lubricating grooves are facing the crankshaft.
3. 3.3  Insert lower thrust washer (bearing cover) -1-  into the bearing cover in such a way that the lubricating grooves are facing the crankshaft.

Fig 1: Crankshaft Bearing Cover Screws Tightening Sequence

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Tightening sequence for bearing cover

1. 4.1  Check that the bearing shells are seated correctly in the crankshaft bearing cover.
2. 4.2  Check dowel sleeves for damage, check that they are fitted correctly and replace them if necessary.
3. 4.3  Move crankshaft bearing cover into installation position.
4. 4.4  Fit screws -1 to 30-  and tighten in the following sequence:
   1. 4.4.1  Screws -1 to 20-  > Tightening torque 15 Nm (11 ftlb.) 
   2. 4.4.2  Screws -1 to 20-  > Tightening torque 30 Nm (22 ftlb.) 
   3. 4.4.3  Screws -1 to 20-  > Torque angle + 200° 
   4. 4.4.4  Loosen screws -1 to 20-  : > Torque angle 720° 
   5. 4.4.5  Screws -1 to 20-  > Tightening torque 30 Nm (22 ftlb.) 
   6. 4.4.6  Screws -1 to 20-  > Torque angle 70° 
   7. 4.4.7  Screws -21 to 30-  > Initial tightening 10 Nm (7.5 ftlb.) 
   8. 4.4.8  Screws -21 to 30-  > Final tightening + 50°