seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

ABOUT US
Engine lubrication > < Valve guides: verification

Leon Mk2

Replacing valve shaft seals.
   
Replacing valve shaft seals.
Special tools and workshop equipment required
t  Spark plug socket and extension -3122 B-
t  Valve spring tool -3362- with thrust piece -3362/1-
t  Valve stem seal puller -3364-
t  Tool for inserting seals onto the valve stems -3365-
t  Pressure hose -VW 653/3-

Removal:
(With cylinder head installed)
–  Remove camshaft housing → Chapter.
–  Carefully remove roller rocker arms and place on a clean surface. Ensure that roller rocker arms are not mixed up.
–  Remove the spark plugs using the spark plug spanner -3122 B-.
–  Set piston of respective cylinder to „bottom dead centre“.
   
–  Attach valve spring tool -3362- with thrust piece -3362/1-.
–  Screw in the pressure hose -VW 653/3- into the spark plug thread.
–  Connect pressure hose to compressed air system supplying at least 6 bar and remove valve springs.
–  Pull off valve stem seals using valve stem seal puller -3364-.
  N15-0081
Installation
–  Place plastic sleeve supplied on respective valve stem. This will prevent damage to new valve stem seal.
–  Place new valve stem seal in valve stem seal fitting tool -3365-.
–  Lubricate the sealing lip of valve stem seal and carefully slide the seal onto the valve guide.
–  Fit camshaft housing → Chapter
–  Adjust distribution timing → Chapter.
Further assembly is basically the reverse of the dismantling sequence. Note the following:
t  Install valve timing housing → Chapter.
  N15-0083

Engine lubrication > < Valve guides: verification