Camshaft, Lifters and Push Rods: Locations

Valvetrain, component overview





1 - Exhaust valve
^ Do not rework, only lapping is permitted
^ Mark installed position for re-installation

2 - Sealing plug
3 - Cylinder head
4 - Support element
^ With hydraulic valve clearance compensation
^ Do not interchange
^ Lubricate contact surface

5 - Securing clip
^ Check for secure seat

6 - Intake camshaft
^ Check radial clearance using Plastigage (roller rocker lever removed)
^ Radial clearance at bearing- 24 mm dia.: 0.024 to 0.066 mm
^ Radial clearance at bearing- 36 mm dia.: 0.032 to 0.078 mm
^ Run-out: max. 0.04 mm

7 - Bearing bracket
^ With integrated camshaft bearings

8 - 9 Nm
9 - Exhaust camshaft
^ Check radial clearance using Plastigage (roller rocker lever removed)
^ Radial clearance at bearing- 24 mm dia.: 0.024 to 0.066 mm
^ Radial clearance at bearing- 36 mm dia.: 0.032 to 0.078 mm
^ Run-out: max. 0.04 mm

10 - Roller rocker lever
^ Do not interchange
^ Check roller for easy movement
^ Lubricate contact surface
^ To assemble, clip onto support element - 4 - with securing clip - 5 -.

11 - Valve keys
12 - Valve spring plate
13 - Valve spring
^ Installed location: The tight spring coils face toward cylinder head

14 - Valve stem seal
15 - Intake valve
^ Do not rework, only lapping is permitted
^ Mark installed position for re-installation
^ Check valve guides