11 31 028 Replacing exhaust camshaft (N47)

Special tools required: 

• 11 6 480

Necessary preliminary tasks: 

• REMOVE CYLINDER HEAD .

Crank engine with special tool 11 6 480 to firing TDC position of cylinder no. 1.

Fig 1: Special Tool (11 6 480)

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Check position of exhaust and intake camshafts (see Fig 2).

Fig 2: Exhaust Sprocket Wheel Marking

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Remove exhaust camshaft. 

Fig 3: Bearing Caps

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Release bearing caps A1 to A5 by 1/2 a turn at a time, working from the outside inwards.

Feed exhaust camshaft upwards to remove.

Preparation for installation: 

Oil all bearing positions (1).

Fig 4: Bearing Positions

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Check installation position of the roller cam followers (risk of damage!)  .

Fig 5: Roller Cam Followers Installation Position

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Installing exhaust camshaft. 

Insert exhaust camshaft (1) marked with (A).

Fig 6: Exhaust Camshaft Mark

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The marks on both camshafts (A and E) must agree when installing exhaust camshaft (A) (see Fig 7).

Fig 7: Exhaust Sprocket Wheel Marking

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Tighten bearing caps A1 to A5 by 1/2 a turn at a time on the camshaft carrier, working from the inside outwards.

Tightening torque: 11 31 2AZ .

Fig 8: Bearing Caps

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Using special tool 11 6 480 , crank engine twice in direction of engine rotation until cylinder no. 1 is back in firing TDC position.

Check CAMSHAFT ADJUSTMENT .

Fig 9: Special Tool (11 6 480)

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Assemble engine.