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11 21 500 Replacing crankshaft (N62 / N62TU)

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CRANKSHAFT OPERATION (N62 / N62TU)

Operation: Note:
Remove engine, refer to 11 00 050 Removing and installing engine (N62)   
Remove cylinder head (cylinder bank 1 to 4), refer to 11 12 106 Removing and installing right cylinder head (N62 from 9 / 03 and N62TU)  or 11 12 106 Removing and installing right cylinder head (N62 to 9 / 03)   
Remove cylinder head (cylinder bank 5 to 8), refer to 11 12 105 Removing and installing left cylinder head (N62 from 9 / 03  or 11 12 105 Removing and installing left cylinder head (N62 to 9 / 03)   
Remove hub for vibration damper, refer to 11 23 031 Removing and installing / replacing vibration damper hub (N62 / N62TU)   
Removing lower timing case cover  
Removing oil pan, refer to 11 13 010 Removing and installing/replacing oil sump top section (N62) and  11 13 020 Removing and installing/replacing oil sump bottom section (N62)   
Remove oil pump, refer to 11 41 000 Removing and installing/replacing oil pump (N62)   
Removing piston, refer to 11 25 530 Removing and installing/replacing all pistons (N62)   
Remove flywheel, refer to 11 22 000 Removing and installing/replacing flywheel (N62)   

Release main bearing inclined screw connection (1).

Fig 1: Releasing Main Bearing Inclined Screw Connection
G03288813Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Tightening torque 11 11 3AZ. Refer to ENGINE - TIGHTENING TORQUES .

Release spacer bolt (2).

Fig 2: Releasing Spacer Bolt
G03288814Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 11 11 3AZ. Refer to ENGINE - TIGHTENING TORQUES .

Release main bearing screws.

Tightening torque 11 11 2AZ. Refer to ENGINE - TIGHTENING TORQUES .

Remove main bearing caps 1 to 5.

Fig 3: Removing Main Bearing Caps
G03288815Courtesy of BMW OF NORTH AMERICA, INC.

Lever out crankshaft.

Replace main crankshaft bearing shells. Refer to 11 21 531 Replacing all main crankshaft bearing shells (N62) .

Replace conrod bearing shells. Refer to 11 24 571 Replacing all conrod bearings (N62) .

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