Removing and Installing/Replacing Right Exhaust Camshaft

11 31 038 - Removing and installing/replacing right exhaust camshaft (S65)





Necessary preliminary tasks:
- Remove right cylinder head cover [1][2]Removing and Installing/Sealing Left Cylinder Head Cover.
- Remove right VANOS exhaust gear Removing and Installing/Replacing Right 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 5-8.
Arrow must point in direction of travel to chain drive.

Remove bearing caps.

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.
Remove exhaust camshaft for cylinders 1 to 4.





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 1 to 4.
Designation (A1) on dihedron points upwards.
Cams on cylinder no. 4 point upwards.

Installation:
Lubricate all bearing points with engine oil.





Installation:
All bearing shells are assigned to one cylinder.
E and A from (1 to 8), e.g. A 1= exhaust side on 1st cylinder.
Arrow (1) 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.





Adjust valve timing.
Assemble engine.