11 37 006 Removing and installing/replacing left eccentric shaft (N62 from 9/03 and N62TU)

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

(Cylinder Bank 5 To 8)

Necessary Preliminary Tasks:

Remove servomotor for left eccentric shaft. Refer to 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .
Remove ignition coils on cylinder bank 5 to 8.
Remove spark plugs on cylinder bank 5 to 8.
Remove left cylinder head cover. Refer to 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .
Remove inlet and exhaust adjustment unit on left side. Refer to 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .
Remove left inlet camshaft.

Eccentric Shafts From 2/2003:

NOTE: Eccentric shafts of cylinders 1 to 4 and 5 to 8 are identical parts.

IMPORTANT: Note installation direction of eccentric shafts. 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.

NOTE: The work steps are only described on one bearing position. The procedure is identical for the other bearing positions.

Carefully tilt bearing shell (1) to one side and simultaneously remove towards top.

Fig 1: Removing Bearing Shell

Courtesy of BMW OF NORTH AMERICA, INC.

Lift out eccentric shaft (1).

Fig 2: View Of Eccentric Shaft

Courtesy of BMW OF NORTH AMERICA, INC.

Removal of magnet wheel (if necessary):

NOTE: Carefully clamp eccentric shaft (1) as illustrated with protective jaws (2) in a vise.

Fig 3: Securing Eccentric Shaft In Vise

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Danger of mix-up:

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.

NOTE: Magnet wheel (1) is extremely magnetic. After removal, place magnet wheel in a plastic bag to protect it against metal chips.

Release screw and remove magnet wheel (1).

Fig 4: Identifying Magnet Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Needle bearings (1) break off very easily when removed and installed.

Carefully press needle bearings (1) apart at split position only to such an extent that they can be removed from eccentric shaft.

Fig 5: Removing Needle Bearings

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: If the needle-roller bearings are replaced, the bearing shells must be replaced as well.

Carefully press bearing shell (1) to one side and simultaneously remove towards top.

Fig 6: View Of Bearing Shell

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Installation of eccentric shaft is described separately from removal.

NOTE: Lubricate eccentric shaft at bearing positions.

Replace needle bearing (1).

IMPORTANT: Needle bearings break off very easily when installed.

Carefully press needle bearings (1) apart at split position only to such an extent that they can be fitted over eccentric shaft.

Fig 7: Removing Needle Bearings

Courtesy of BMW OF NORTH AMERICA, INC.

Eccentric Shafts From 2/2003:

NOTE: Eccentric shafts of cylinders 1 to 4 and 5 to 8 are identical parts.

Installation of magnet wheel:

NOTE: Carefully clamp eccentric shaft (1) as illustrated with protective jaws (2) in a vise.

Fig 8: View Of Eccentric Shaft In Vise

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Incorrect Assembly Will Result In Engine Damage.

Assemble eccentric shaft for cylinder bank 5 to 8:

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 left.

Secure magnet wheel (1) with lug in eccentric shaft groove.

IMPORTANT: Only install original antimagnetic screw (2).

Insert screw (2) and tighten down.

Tightening torque, refer to 11 37 1AZ in ENGINE - TIGHTENING TORQUES - 545I (4.4L) E60 .

Fig 9: View Of Magnet Wheel With Lug In Eccentric Shaft Groove

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Replace bearing shells (1) of needle bearings.

IMPORTANT: Bearing shells (1) must be installed in such a way that ends of bearing shells (1) face each other as shown in illustration.

Fig 10: Aligning Bearing Shell Ends

Courtesy of BMW OF NORTH AMERICA, INC.

Insert bearing shells (1) into bearing bracket so that it is secured in bore (2).

Fig 11: Inserting Bearing Shells Into Bearing Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Lubricate bearing shells (1) with engine oil.

Fig 12: View Of Bearing Shells In Bearing Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder Bank 5 To 8:

IMPORTANT: The machined curvature (1) of the eccentric points inwards.

Install eccentric shaft as shown in illustration.

Fig 13: Installing Eccentric Shaft

Courtesy of BMW OF NORTH AMERICA, INC.

Lubricate bearing shells (1) with engine oil.

Install bearing shells (1).

Fig 14: Installing Bearing Shells

Courtesy of BMW OF NORTH AMERICA, INC.

Bearing shells (1) must snap audibly into place.

Check correct position of bearing shells (1).

Fig 15: Checking Correct Position Of Bearing Shells

Courtesy of BMW OF NORTH AMERICA, INC.

Install left inlet camshaft. Refer to 11 31 032 REMOVING AND INSTALLING/REPLACING LEFT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU) .

Assemble engine.