Removing and Installing/Replacing Left Exhaust Camshaft

11 31 036 - Removing and installing/replacing left exhaust camshaft (S65)





Necessary preliminary tasks:
- Remove left cylinder head cover. Mechanical Specifications
- Remove left VANOS exhaust gear Removing and Installing/Replacing Left Exhaust VANOS Gear





Release screws (1).
Tightening torque: 11 12 2AZ 11 12 Cylinder Head with Cover.
E - Intake camshaft
A - Exhaust camshaft.

Important!
Risk of mix-up with cylinder bank 1-4.
Arrow must point in direction of travel to chain drive.

Remove bearing cap (2).

Installation:
Lubricate all bearing points with engine oil.





Release screws (1) from outside inwards in 1/2 turns.
Tightening torque: 11 12 2AZ 11 12 Cylinder Head with Cover.

Installation:
Lubricate all bearing points with engine oil.





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.





Insert exhaust camshaft for cylinders 5 to 8.
Designation (A 2) on dihedron points upwards.
Cams (1) on cylinder no. 5 point upwards.

Installation:
Lubricate all bearing points with engine oil.

Note:
Picture shows S85.





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.





Release screws (1) from inside outwards in 1/2 turns.
Tightening torque: 11 12 2AZ 11 12 Cylinder Head with Cover.

Installation:
Lubricate all bearing points with engine oil.





Adjust valve timing. Adjustments
Assemble engine.