11 31 032 Removing and installing or replacing left inlet camshafts (S65)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Release screws (1).

Tightening torque: 11 12 2AZ .

E Intake camshaft

A Exhaust camshaft.

IMPORTANT: Risk of mix-up with cylinder bank 1-5.
Arrow (2) must point in direction of travel to chain drive.

Installation:

Lubricate all bearing points with engine oil.

Fig 1: Identifying Camshaft Screws

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Release screws (1) from outside inwards in 1/2 turns.

Tightening torque: 11 12 2AZ .

Remove inlet camshaft for cylinders 5 to 8.

Fig 2: Identifying Camshaft Screws

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Do not place timing chain in gearcase.

Secure timing chain (1) against falling down with a cable tie (3) to one screw (2).

Fig 3: Securing Timing Chain

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Check plain compression rings for damage and replace if necessary.

The plain compression rings have catches at the joint.

Press plain compression rings apart upwards and downwards and remove towards front.

IMPORTANT: Plain compression rings can break easily.

Fig 4: Removing Plain Compression Rings

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Insert inlet camshaft for cylinders 5 to 8.

Designation (E2) on dihedron points upwards.

Cams on cylinder no. 6 point upwards.

Installation:

Lubricate all bearing points with engine oil.

Fig 5: Positioning Camshaft Lobs

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Installation:

All bearing shells are assigned to one cylinder.

E and A from (1 to 8), e.g. E 5= inlet side on cylinder no. 5.

Arrow must point in direction of travel to chain drive.

Fig 6: Positioning Travel Direction To Chain Drive

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Release screws (1) from inside outwards in 1/2 turns.

Tightening torque: 11 12 2AZ .

Fig 7: Identifying Camshaft Screws

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Assemble engine.