Valve Guide Seal: Service and Repair

Valve stem seals, replacing
(with cylinder head installed)





Special tools and equipment
^ VAG1331 Torque wrench (5-50 Nm)
^ VAG1332 Torque wrench (40-200 Nm)
^ 3122B Spark plug removal tool
^ 3364 Puller
^ VW653/3 Pressure hose
^ 3362 Valve spring compressor and press piece 3362/1





^ 3365 Fitting tool

Removing
- Remove cam shafts.
- Remove hydraulic lifters and place them with contact surface downward. When doing this ensure that lifters are not interchanged.
- Remove spark plugs with spark plug removal tool 3122B.
- Set piston of appropriate cylinder to BDC (bottom dead center).
- Screw pressure hose VW653/3 into spark plug thread.





- Mount fitting tool 3362 on cylinder head with fitting tool securing bolts.
- Position fitting tool for compressing valve springs to one of following positions:
Outer intake valves: lower position
Center intake valve: upper position
Exhaust valve: lower position
- Connect pressure hose to compressed air system supplying at least 6 bar and remove valve springs.





- Pull off valve stem seals with 3364.

Installing





- Place plastic sleeve -A- supplied on appropriate valve stem. This will prevent new valve stem seal being damaged.
- Place new valve stem seal in fitting tool 3365.
- Oil sealing lip of valve stem seal -B- insert in installation tool 3365 and press carefully onto valve guide.
- The rest of the assembly is basically a reverse of the disassembling sequence.