11 33 062 Removing and installing/renewing all hydraulic valve clearance compensating elements (N47D20 K/U/O/T 1)

Special tools required:

Necessary preliminary tasks:

Use special tool 11 6 480 to turn engine to TDC firing position of cylinder 1.

IMPORTANT: Do not turn the engine against the direction of travel.

Fig 1: Turning Engine To TDC Firing Position Of Cylinder Using Special Tool (11 6 480)

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Remove protective cap of gear case cover.

Block crankshaft with cylinder no. 1 in TDC firing position with special tool 11 5 320 .

Fig 2: Removing Protective Cap Of Gear Case Cover

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Fig 3: Identifying Chain Tensioner

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Release screws (1) on camshaft sprocket.

Remove camshaft sprocket from intake camshaft.

Pull camshaft sprocket out of timing chain and place it neatly on the special tool 11 4 480 .

Place timing chain at the cylinder head.

Fig 4: Identifying Camshaft Sprocket Screws

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NOTE: Both camshafts can be removed with the camshaft carrier.

Release all bolts (1) from outside inwards.

Take off camshaft carrier by lifting it upwards.

Fig 5: Identifying Camshaft Carrier Bolts

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Set down all rocker arms (1) on special tool 11 4 480 in neat order.

Installation note:

Already used rocker arms may be reused only in the same position.

Fig 6: Locating Rocker Arms And Special Tool (11 4 480)

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Remove valve clearance compensating element (1) in direction of arrow.

Installation note:

If reusing valve clearance compensating elements (1), store them in an orderly fashion on special tool 11 4 480 .

Reuse valve clearance compensating elements in the same positions.

Fig 7: Removing Valve Clearance Compensating Element

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Installation note:

Make sure roller cam followers are in correct installation positions.

Place camshaft carrier on cylinder head.

Tighten bolts in sequence (1 to 14).

Tightening torque: 11 31 3AZ .

NOTE: Picture shows N47.

Fig 8: Camshaft Carrier Bolts Tightening/Loosening Sequence (N47 D20 O1)

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Assemble engine.