Valve Spring: Service and Repair

Preliminary work is described in section on dismantling and assembling the cylinder head, refer to Cylinder Head Assembly, Service and Repair.
Remove the camshafts, refer to Camshafts, Engine, Service and Repair.





Insert Special Tool 11 1 441 from below in Special Tool 11 1 065 and secure with Special Tool 11 1 045.





Align Special Tool 11 0 345 in direction of valve shaft and select appropriate groove in Special Tool 11 0 342.





Press down valve spring on spring cap, top, and remove valve keys.
Remove valve spring and plate spring.





Installation sequence:
1. Valve
2. Valve-stem seal
3. Lower plate spring
4. Valve spring
5. Upper plate spring
6. Valve tapers