Valve Spring: Service and Repair

Replacing All Valve Springs
(Cylinder Head Removed)

Preliminary tasks are described in Disassembling and Assembling Cylinder Head, refer to Cylinder Head Assembly, Service and Repair.





Brace bucket tappets with special tool 11 3 250.
Lift out bearing strip with bucket tappet.

Installation:
Only re-use used bucket tappets in the same tappet bore.

Standard coding table:

Arrange bucket tappets by cylinder and place on special tool 11 3 030 in correct order.





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.





Arrangement:
1. Valve
2. Valve-stem seal
3. Lower plate spring
4. Valve spring
5. Top plate spring
6. Valve tapers