Camshaft, Lifters and Push Rods: Locations

Valvetrain Assembly Overview





1. 8 Nm plus an additional 1/4 turn (90 degree)
2. Bearing bracket
^ With integrated camshaft bearings
^ Clean sealing surface, reworking is not permitted.
^ Remove old sealant residue.
3. Chain sprocket
^ For exhaust camshaft
4. 60 Nm plus an additional 1/4 turn (90 degree)
^ Replace
5. 60 Nm plus an additional 1/4 turn (90 degree)
^ Replace
6. Camshaft adjuster
^ For intake camshaft
7. Seals
^ For camshaft adjuster
^ Note installation position
8. Timing chain
9. Cylinder head
^ Do not re-grind valve seats, only hand-lapping is permitted.
10. Hydraulic valve play balancing element
^ Do not interchange
^ Lubricate contact surface
11. Valve keepers
12. Top valve spring retainer
13. Valve spring
14. Valve stem seal
15. Valve guide
16. Intake valve
^ Do not rework, only lapping is permitted
^ Check valve guides
17. Exhaust valve
^ Do not rework, only lapping is permitted
^ Check valve guides
18. Sealing plugs
^ Replace
19. Intake camshaft
^ Check radial clearance using Plastigage (roller rocker lever removed)
- Wear limit: 0.1 mm
^ Run-out: max. 0.035 mm
^ Axial clearance: max. 0.17 mm
20. Exhaust camshaft
^ Check radial clearance using Plastigage (roller rocker lever removed)
- Wear limit: 0.1 mm
^ Run-out: max. 0.035 mm
^ Axial clearance: max. 0.17 mm