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Leon Mk1

Renewing valve stem seals
Renewing valve stem seals
(with cylinder head installed)
   
Special tools and workshop equipment required
t  Spark plug spanner -3122 B-
t  Hold down tool for valve springs -3362- and press piece -3362/1-
t  Valve stem seal puller -3364-
t  Pressure hose -VW 653/3-
t  Torque wrench -V.A.G 1331- (5...50 Nm)
t  Torque wrench -V.A.G 1332- (40...200 Nm)

   
t  Valve stem seal fitting tool -3365-
Removing
–  Removing camshafts → Chapter.
–  Remove bucket tappets and lay them down with the contact surface downwards. When doing this, ensure that tappets are not interchanged.
–  Unscrew spark plugs using spark plug socket and extension -3122 B-.
–  Set piston of respective cylinder to “bottom dead centre”.
  W00-0194
–  Screw pressure hose -VW 653/3- into spark plug thread.
–  Insert thrust piece -3362/1- into hold down tool for valve springs -3362-.
–  Mount hold down tool for valve springs -3362- on cylinder head with the tool's own securing bolts.
–  Bring valve spring tool -3362- into the following position to compress valve springs:
Outer inlet valves: lower position
Middle inlet valve: upper position
Exhaust valve: lower position
–  Connect pressure hose -VW 653/3- to compressed air system supplying at least 6 bar and remove valve springs.
  N15-0413
–  Pull valve stem seals off using valve stem seal puller -3364-.
Installing
  A15-0035
–  To prevent damage to new valve stem seals, place plastic sleeve -A- on valve stem.
–  Lubricate sealing lip of valve stem oil seal -B-, place it in the valve stem oil seal fitting tool -3365- and push carefully onto valve guide.
–  Insert spark plugs using spark plug spanner -3122 B- and tighten to 30 Nm.
–  Install camshafts → Chapter.
  N15-0098

Cylinder head > < Checking valve guides