Replacing the old overworked
Exhaust and inlet valves when rebuilding the cylinder-head is a sensible precaution. The old valves become brittle and can break off around the
Valve head area, allowing what's left to drop onto the top of the piston causing untold and very expensive damage!
Renewing the interfacing parts at the same time is a sound engineering principal. Interfacing worn parts with new items can seriously shorten the life of those new parts.
This component and those listed below may be required:
3LD1211100
3LD1211101
3LD1211200
3LD1211201
3LD1212100
1WG1211600
3LD1211300
3LD1211700
3LD1211800
1WG1215321
1WG1215331
1WG1215309
Add as many items as you wish to the same shopping cart, new Valve-stem seals 51Y1211900 for example, (as the old ones should not be reused) and still only pay just one single fixed price shipping cost. Don't forget to order all the gaskets and seals required to complete the assembly of the cylinder-head. Try this pro-workshop gasket sealant 08CRAHLG120G to complete the job like a professional.