11 31 032 Remove and install/replace left intake camshaft (N74)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2016 BMW 760Li, 2015 BMW 760Li, 2014 BMW 760Li, 2013 BMW 760Li, and 2012 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Fig 1: Identifying Camshaft Bearings Bolts Releasing Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts of camshaft bearings in sequence (1 to 14) in 1/2 turns .

Set down all bearing caps in a tidy and orderly fashion on special tool 11 4 480 .

Remove intake camshaft in upward direction .

IMPORTANT: Used rocker arms (1) may only be reused in the same position.

NOTE: Rocker arms (1) are freely accessible after inlet camshaft has been removed.

Do "not" remove rocker arm (1) on intake side.

Fig 2: Identifying Rocker Arms

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Plain rectangular compression rings (1) can easily break.

Press plain rectangular compression ring (1) on one side into groove, pull up on other side and remove latch mechanism.

Carefully pull plain rectangular compression ring (1) apart and remove towards front.

Ends of plain rectangular compression rings (1) point upwards.

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

Fig 3: Identifying Plain Rectangular Compression Ring

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The intake camshaft of cylinder bank 7 to 12 is marked with "E and 712".

Fig 4: Identifying Intake Camshaft Labelling

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Rocker arms (1) slip slightly when inlet camshaft is fitted.

Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align all rocker arms (1) straight.

Installation note:

Fig 5: Identifying Rocker Arm

Courtesy of BMW OF NORTH AMERICA, INC.

Coat all bearing positions with engine oil.

Insert inlet camshaft without strain.

Insert inlet camshaft so that cams point to side at cylinder 7 as shown in picture.

Fig 6: Locating Inlet Camshaft Cams

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Ends of compression rings point upwards or downwards.

Make sure plain rectangular compression rings are engaged at ends.

Fig 7: Locating Plain Rectangular Compression Rings

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not mix up the bearing caps of cylinders 1 to 6 and 7 to 12.
All bearing caps are coded and must be installed in the same position.

Fig 8: Identifying Bearing Cap Codes

Courtesy of BMW OF NORTH AMERICA, INC.

All bearing caps are marked:

If both cylinder heads are removed at the same time, the respective bearing caps for each cylinder bank must be marked.

E = Intake side

A = Exhaust side

1 = Designation from 1 to 7

Check roller (1) of bucket tappet for ease of movement.

Fig 9: Identifying Bucket Tappet Roller

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Observe installation lugs of high-pressure carrier and bucket tappet.

Fig 10: Locating Lugs Of High-Pressure Carrier And Bucket Tappet

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 11: Left Intake Camshaft Bearing Cap Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Fit all bearing covers .

Insert all bolts .

Tighten down bolts in sequence (14 to 1) in 1/2 turns .

Tightening torque: see 1AZ in 11 31 CAMSHAFT

Preload intake camshaft with a open-end spanner (2) towards right.

NOTE: Graphic of exhaust camshaft.

Fig 12: Preloading Intake Camshaft With Open-End Spanner Towards Right

Courtesy of BMW OF NORTH AMERICA, INC.

Block intake camshaft with special tool 11 9 893.

Fig 13: Blocking Intake Camshaft Using Special Tool 11 9 893

Courtesy of BMW OF NORTH AMERICA, INC.

Install INTAKE ADJUSTMENT UNITS .

Adjust VALVE TIMING .

Assemble engine.