11 36 048 Removing and installing/replacing inlet and exhaust adjustment units on right side (N62): Installation

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Installation of inlet and exhaust adjustment units is described separately from removal.

CAUTION: Risk of mixing up parts.

The inlet and exhaust adjustment units are different.

Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

Inlet adjustment unit (1) is marked with EIN and IN
Exhaust adjustment unit (2) is marked with AUS and EX

Fig 1: Identifying Inlet And Exhaust Adjustment Units
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The exhaust adjustment unit on cylinder bank 1 to 4 also has a metal clip (3) for driving the vacuum pump.

Fig 2: Locating Metal Clip

G03289499

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Position of exhaust adjustment unit (2) to timing chain can be freely selected.

Pull timing chain up.

Feed exhaust adjustment unit (2) into timing chain and fit onto exhaust camshaft.

Fig 3: Installing Exhaust Adjustment Unit

G03289500

Courtesy of BMW OF NORTH AMERICA, INC.

Replace screw.

Install screw on exhaust adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Fig 4: Installing Screw On Exhaust Adjustment Unit

G03289501

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Position of inlet adjustment unit (1) to timing chain can be freely selected.

Pull timing chain up.

Feed inlet adjustment unit (1) into timing chain.

Fig 5: Installing Inlet Adjustment Unit

G03289502

Courtesy of BMW OF NORTH AMERICA, INC.

Press tensioner rail (3) back and fit inlet adjustment unit (1) onto inlet camshaft.

NOTE: If tensioner rail (3) cannot be pressed back far enough to enable fitting of inlet adjustment unit (1):
Slacken off chain tensioner by approx. three turns.
Fit inlet adjustment unit (1).
Replace and insert screw on inlet adjustment unit (1).
Tighten down chain tensioner.
Tightening torque of chain tensioner, 11 31 8 AZ. Refer to ENGINE - TIGHTENING TORQUES .

Tighten screw on inlet adjustment unit without play and then slacken off again by a half turn.

Fig 6: Tightening Screw On Inlet Adjustment Unit

G03289503

Courtesy of BMW OF NORTH AMERICA, INC.

Get special tool kit 11 9 460 ready for securing camshafts.

Fig 7: Identifying Special Tools

G03289504

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Special tool 11 9 461 for securing inlet camshaft.
Special tool 11 9 462 for securing exhaust camshaft.
Special tool 11 9 463 (holder with screw).

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Fig 8: Aligning Inlet Camshaft

G03289505

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 9 463, secure screw (1) in thread for oil line and tighten down by hand.

Fig 9: Fitting Special Tool

G03289506

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Make sure screws of inlet and exhaust adjustment units have been slackened off.

Crank engine at central bolt from 45° before TDC position in direction of rotation to firing TDC position.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Fig 10: Securing Vibration Damper

G03289507

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Fig 11: Tightening Down Screw Of Inlet Adjustment Unit

G03289508

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, 11 36 16AZ .

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Fig 12: Releasing Screw

G03289509

Courtesy of BMW OF NORTH AMERICA, INC.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Fig 13: Aligning Exhaust Camshaft

G03289510

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 9 463, secure screw (1) in thread for oil line and tighten down by hand.

Fig 14: Fitting Special Tool

G03289511

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Fig 15: Tightening Down Screw

G03289512

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, 11 36 16AZ .

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Fig 16: Releasing Screw

G03289513

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tool 11 9 190.

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Fig 17: Securing Vibration Damper

G03289514

Courtesy of BMW OF NORTH AMERICA, INC.

Place special tool 11 9 461 on inlet camshaft and check timing.

NOTE: The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Fig 18: Checking Timing On Inlet Camshaft

G03289515

Courtesy of BMW OF NORTH AMERICA, INC.

Place special tool 11 9 462 on exhaust camshaft and check timing.

NOTE: The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Fig 19: Checking Timing On Exhaust Camshaft

G03289516

Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

CAUTION: Screw (1) is a special screw and must not be replaced with a normal M8 screw.

Clip oil line (3) into retainers (2).

Fig 20: Clipping Oil Line Into Retainers

G03289517

Courtesy of BMW OF NORTH AMERICA, INC.

Insert screw (1) and tighten down.

Assemble engine.