Valve Guide Seal: Service and Repair

11 34 560 Replacing all valve stem seals (N18)

Special tools required:







Necessary preliminary work:
- Remove cylinder head.
- Remove exhaust camshaft.
- Remove intake camshaft.
- Remove roller cam follower.
- Remove all valve springs.







Firmly press special tool 11 1 480 onto old valve stem seals.
Detach valve stem seal from valve stem by turning and simultaneously pulling special tool 11 1 480 .

Installation note:
Insert all valves.







Installation note:
Fit the assembly sleeves (plastic sleeves) supplied in the new part on the valve stem end.
Lubricate assembly sleeve.
Press on valve stem seal with special tool 11 6 380 by hand up to stop.







Assemble engine.