11 21 505 Sealing the crankcase's lower part (N52K): Installation

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Check spacer bushings (1) for secure seating and damage; replace if necessary.

Align twin surface (3) on oil pump (2) to sprocket wheel.

Install oil pump (2).

Fig 1: Identifying Spacer Bushings And Oil Pump

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The special tool bore for the TDC position is located on the inlet side underneath the starter motor.

Rotate engine at central bolt and secure flywheel in position with special tool 11 0 300 .

Fig 2: Securing Crankshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Secure flywheel with special tool (1) 11 9 260 and special tool (2) 11 9 266.

NOTE: Make sure that the special tool (1) completely engages in the flywheel teeth (see arrow)

Fig 3: Securing Flywheel Using Special Tool 11 9 260/11 9 266

Courtesy of BMW OF NORTH AMERICA, INC.