11 37 008 Removing and installing/replacing right eccentric shaft (N62 from 9/03 and N62TU)
(Cylinder Bank 1 To 4)
Necessary Preliminary Tasks:
- Remove servomotor for right eccentric shaft. Refer to 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .
- Remove ignition coils on cylinder bank 1 to 4.
- Remove spark plugs on cylinder bank 1 to 4.
- Remove right cylinder head cover. Refer to 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .
- Install inlet and exhaust adjustment unit on right side. Refer to 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .
- Remove right inlet camshaft. Refer to 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU) .
Eccentric Shafts From 2/2003:
Removal:
Removal of eccentric shaft is described separately from installation.
Carefully tilt bearing shell (1) to one side and simultaneously remove towards top.
Lift out eccentric shaft (2).
Removal of magnet wheel (if necessary):
It is very easy to mix up left and right or front and rear on the eccentric shaft.
If necessary, mark the side on which the magnet wheel is fitted.
Release screw and remove magnet wheel (1).
Carefully press needle bearings (1) apart at split position only to such an extent that they can be removed from eccentric shaft.
Carefully press bearing shell (1) to one side and simultaneously remove towards top.
Installation:
Installation of eccentric shaft is described separately from removal.
Replace needle bearing (1).
Carefully press needle bearings (1) apart at split position only to such an extent that they can be fitted over eccentric shaft.
Eccentric Shafts From 2/2003:
Depending on the side on which the magnet wheel is fitted, the eccentric shafts are used for cylinders 1 to 4 or 5 to 8.
Incorrect Assembly Will Result In Engine Damage .
Installation of magnet wheel:
Assemble eccentric shaft for cylinder bank 1 to 4:
The machined curvature (3) and the groove in the eccentric shaft must point forwards as illustrated.
The unmachined surface on the eccentric points to the right.
Secure magnet wheel (1) with lug in eccentric shaft groove.
Insert screw (2) and tighten down.
Tightening torque, refer to 11 37 1AZ in ENGINE - TIGHTENING TORQUES - 545I (4.4L) E60 .
Insert bearing shells (1) into bearing bracket so that it is secured in bore (2).
Lubricate bearing shells (1) with engine oil.
Cylinder Bank 1 To 4:
The magnet wheel (2) is at the rear.
Install eccentric shaft as shown in illustration.
Lubricate bearing shells (1) with engine oil.
Install bearing shells (1).
Bearing shells (1) must snap audibly into place.
Check correct position of bearing shells (1).
Install right inlet camshaft.
Assemble engine.