11 37 012 Removing and installing/replacing left intermediate lever (N62 to 9/03): Installation

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Removal of intermediate levers is described separately from installation.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

IMPORTANT: Intermediate levers (2) are divided into individual tolerance classes.
Only intermediate levers of the same tolerance class may be fitted in a single cylinder head.
The tolerance classes are designated as illustrated with the numbers from 1 to 5.
Used intermediate levers (2) may only be reused in the same position.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Fig 1: Identifying Intermediate Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Raise torsion spring (1) with special tool 11 9 480.

Fig 2: Raising Torsion Spring With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Detach special tool 11 9 490.

Hold torsion spring (1) with special tool 11 9 480.

Fig 3: Holding Torsion Spring With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Raise second end of torsion spring with special tool 11 9 480.

Fig 4: Raising Second End Of Torsion Spring With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Detach special tool 11 9 490.

Hold torsion spring (1) with special tool 11 9 480.

Fig 5: Holding Torsion Spring With Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Remove special tool 11 9 474.

Fig 6: Removing Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tools 11 9 472 and special tools 11 9 475.

Fig 7: Removing Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Ends of compression rings (1) point upwards.

Fig 8: View Of Compression Rings

Courtesy of BMW OF NORTH AMERICA, INC.

Make sure compression rings (1) are engaged at ends.

IMPORTANT: Rocker arms (1) slip slightly when bearing bracket is fitted.
Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Fig 9: Identifying Rocker Arms

Courtesy of BMW OF NORTH AMERICA, INC.

Align rocker arms (1) straight.

Remove special tool 11 9 473.

Fig 10: Removing Bearing Bracket From Special Tool

Courtesy of BMW OF NORTH AMERICA, INC.

Remove bearing bracket (1) from special tool 11 9 470.

IMPORTANT: Do not tilt bearing bracket (1).

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Fig 11: Installing Bearing Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Insert nuts and tighten by hand without play.

IMPORTANT: Make sure none of the intermediate levers or rocker arms have slipped out.

Tighten down nuts from inside to outside.

Tightening torque, 11 31 1AZ. Refer to ENGINE - TIGHTENING TORQUES .

IMPORTANT: Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Fig 12: Fitting Bearing Cap R E1

Courtesy of BMW OF NORTH AMERICA, INC.

Install nuts and tighten down.

Tightening torque, 11 31 1AZ. Refer to ENGINE - TIGHTENING TORQUES .

Rotate eccentric shaft at dihedral head as illustrated in order to reduce tension on torsion spring (1).

Fig 13: Rotating Eccentric Shaft At Dihedral Head

Courtesy of BMW OF NORTH AMERICA, INC.

Pretension torsion spring (1) with a cable strap (2) and carefully fit on roller (3).

Rotate eccentric shaft at dihedral head as shown in illustration back to minimum stroke position.

Fig 14: Rotating Eccentric Shaft Back To Minimum

Courtesy of BMW OF NORTH AMERICA, INC.

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Fig 15: Rotating Inlet Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Install 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) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover. Refer to 11 12 005 Removing and installing / sealing left cylinder head cover (N62 / N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft. Refer to 11 37 022 Removing and installing/replacing servomotor for left eccentric shaft (N62) .

Assemble engine.