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11 37 008 Removing and installing/replacing right eccentric shaft (N62 to 9/03)

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 1 to 4)

Remove servomotor for right eccentric shaft.

Remove ignition coils on cylinder bank 1 to 4.

Remove spark plugs on cylinder bank 1 to 4.

Remove right cylinder head cover.

Install inlet and exhaust adjustment unit on right side.

Remove right inlet camshaft. Refer to 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 TO 9/03) .

IMPORTANT: Eccentric shafts up to 2/2003:  Eccentric shafts of cylinders 1 to 4 and 5 to 8 are different and must not be mixed up. The side of the eccentric shaft on which the lever for the torsion spring is fitted must not be mixed up. Eccentric shafts from 2/2003:  Eccentric shafts of cylinders 1 to 4 and 5 to 8 are identical parts. Depending on the side on which the lever for the torsion spring and the magnet wheel are fitted, the eccentric shafts are used for cylinders 1 to 4 or 5 to 8.

Removal 

Removal of eccentric shaft is described separately from installation.

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 Shells
G03289576Courtesy of BMW OF NORTH AMERICA, INC.

Lift out eccentric shaft (2).

Fig 2: View Of Eccentric Shaft
G03289577Courtesy of BMW OF NORTH AMERICA, INC.

Removal of magnet wheel (if necessary):

NOTE: Roller (1) must not rest against vise.
Clamp eccentric shaft (2) with front jaws on dihedral in a vise.
Fig 3: Securing Eccentric Shaft In Vise
G03289578Courtesy 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: Removing Magnet Wheel
G03289579Courtesy of BMW OF NORTH AMERICA, INC.

Removal of lever (1) with roller (if necessary):

IMPORTANT: Levers with rollers of cylinders 1 to 4 and 5 to 8 are different and must not be mixed up.

Grip lever (1) with roller at dihedral.

Release screw (2) and remove lever (1) with roller from eccentric shaft.

Fig 5: Removing Lever
G03289580Courtesy 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 6: Removing Needle Bearings
G03289581Courtesy 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.

Installation 

Installation of eccentric shaft is described separately from removal.

Fig 7: Removing Bearing Shell
G03289582Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Danger of mix-up:

Version Up To 2/03 Of Cylinder Bank 1 To 4: 

In the version up to 2/03, the eccentric shafts are different for cylinders 1 to 4 and 5 to 8 and must not be mixed up.

The eccentric shaft of cylinder bank 1 to 4 has the part number 7 513 754 stamped between cylinders 3 and 4 and a "flat area" on the collar between cylinders 1 and 2.

Fig 8: Identifying Mark On Eccentric Shafts (Bank 1 - 4)
G03289583Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Danger of mix-up:

Version Up To 2/03 Of Cylinder Bank 5 To 8: 

The eccentric shaft of cylinder bank 5 to 8 has the part number 7 513 755 stamped between cylinders 5 and 6 and has no "flat area" on the collar between cylinders 5 / 6 and 7 / 8.

Fig 9: Identifying Mark On Eccentric Shaft (Bank 5 - 8)
G03289584Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Danger of mix-up:

If none of the markings described above are present, then the eccentric shaft will be a new-version shaft.

The new-version eccentric shafts are identical parts.

Depending on the side on which the lever for the torsion spring and the magnet wheel are fitted, the eccentric shafts are used for cylinders 1 to 4 or 5 to 8.

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 10: Installing Needle Bearing
G03289585Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Levers with rollers of cylinders 1 to 4 and 5 to 8 are different and must not be mixed up.
Fig 11: Identifying Levers With Rollers
G03289586Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The position of the eccentric (3) is crucial to fitting the lever (1) and the installation direction in the bearing bridge described later. Incorrect Assembly Will Result In Engine Damage. 

Cylinder Bank 1 To 4: 

As shown in the illustration, the machined surface (3) on the eccentric must point left and the groove in the eccentric shaft must be pointed upwards at an angle.

Fig 12: Identifying Position Of Eccentric
G03289587Courtesy of BMW OF NORTH AMERICA, INC.

Align lever (1) with digits 1-4 pointing to groove in eccentric shaft and insert. Insert screw (2).

Grip lever (1) with roller at dihedral.

Tighten down screw (2).

Installation of magnet wheel:

NOTE: Roller (1) must not rest against vise. Clamp eccentric shaft (2) with front jaws on dihedral in a vise.
Fig 13: View Of Eccentric Shaft In Vise
G03289588Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The position of the eccentric is crucial to fitting the magnet wheel (1) and the installation direction in the bearing bridge described later. Incorrect Assembly Will Result In Engine Damage. 

Magnet wheel (1) is secured with a lug in groove in eccentric shaft.

IMPORTANT: Only install original antimagnetic screw (2).

Insert screw (2) and tighten down.

Tightening torque, refer to 11 37 1AZ in ENGINE - TIGHTENING TORQUES .

Fig 14: Installing Antimagnetic Screw
G03289589Courtesy 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 15: Aligning Bearing Shell Ends
G03289590Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 16: Installing Bearing Shells Into Bearing Bracket
G03289591Courtesy of BMW OF NORTH AMERICA, INC.

Lubricate bearing shells (1) with engine oil.

Fig 17: View Of Bearing Shells
G03289592Courtesy of BMW OF NORTH AMERICA, INC.

Cylinder Bank 1 To 4: 

IMPORTANT: There is a danger of mixing up battery leads: Machined curvature of eccentric points inwards. Lever (1) with roller points towards front.

Install eccentric shaft as shown in illustration.

Version Up To 2/03: 

Eccentric shaft of cylinder bank 1 to 4 has a "flat area (2)" on collar between cylinders 1 and 2.

Fig 18: Installing Eccentric Shaft
G03289593Courtesy of BMW OF NORTH AMERICA, INC.

Lubricate bearing shells (1) with engine oil.

Install bearing shells (1).

Fig 19: Installing Bearing Shells
G03289594Courtesy of BMW OF NORTH AMERICA, INC.

Bearing shells (1) must snap audibly into place.

Fig 20: Checking Correct Position Of Bearing Shells
G03289595Courtesy of BMW OF NORTH AMERICA, INC.

Check correct position of bearing shells (1).

Install right inlet camshaft. Refer to 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 TO 9/03) .

Assemble engine.

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