11 31 505 Adjusting timing (M57T2-SCR)

Necessary preliminary work:

The cams on the intake camshaft at the 1st cylinder point downwards.

Release screw (1).

NOTE: Bolt (1) must be removed beforehand as it is no longer accessible in TDC setting.

Tightening torque, see 11 31 1AZ in 11 31 CAMSHAFT .

Fig 1: Identifying Intake Camshaft Bolts

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Remove protective cap in direction of arrow.

Installation note:

Reinstall protective cap with some grease.

Fig 2: Removing Protective Cap

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Crank engine at crankshaft with special tool 11 6 480.

Secure crankshaft at flywheel with special tool 11 6 080.

Fig 3: Securing Crankshaft On Flywheel Using Special Tool (11 6 080)

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IMPORTANT: Do not release screws (2).

Release camshaft sprocket bolts (1).

Tightening torque, see 11 31 1AZ in 11 31 CAMSHAFT .

Fig 4: Identifying Camshaft Sprocket Bolts And Screws

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Marking (1) on intake camshaft must be flush with cylinder head.

Marking (2) on exhaust camshaft must be flush with cylinder head.

It is possible to effect turning at the hexagon head of the exhaust camshaft in order to set the gear wheels.

NOTE: See graphic.

Fig 5: Identifying Marking On Intake And Exhaust Camshaft

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Mark (1) on intake camshaft gear must be between marks (2) on exhaust sprocket wheel.

NOTE: See graphic.

Fig 6: Identifying Mark On Intake Camshaft Gear And Exhaust Sprocket Wheel

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Position special tool 11 6 321 on intake camshaft and secure with special tool 11 6 322.

Installation note:

The exhaust camshaft only has to be checked, setting is not possible.

Fig 7: Securing Intake Camshaft Using Special Tool (11 6 332)

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Secure sprocket bolts (1).

Tightening torque, see 11 31 1AZ in 11 31 CAMSHAFT

Installation note:

Crank engine at central bolt through 360°.

The third sprocket bolt is now accessible.

Secure third sprocket bolt.

Fig 8: Identifying Sprocket Bolts

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Check timing.

Remove all special tools.

Assemble engine.