seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Valve seats: Reworking > < Hydraulic bucket tappet: check
Valve stem seals: replace
Valve stem seals: replace
t  Removing → Anchor
t  Replace → Anchor
   
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
t  counterhold -T20034D-, see equivalent → Anchor
t  Thrust piece -T20039-, see equivalency → Anchor
t  Extractor -T20058A-, see equivalent → Anchor

Removing
(With cylinder head installed)
–  Remove camshaft → Chapter.
–  Take out bucket tappets and set them down with bearing surface facing downwards. Ensure that the followers are not mixed up.
–  Bring the piston of the respective cylinder to TDC so that the valves press on the piston head.
   
–  Apply the retaining tool -T20034D- with the adapter -T20034/34-.
–  Remove the valve springs.
  Note
The valves press on the piston crown.
  E15-0081
–  Remove the valve stem seals using the extractor -T20058A-.
Replacing
  E15-0082
–  Fit the plastic sleeve -A- on to the corresponding valve stem (this sleeve is included with the spare part). In this way, damage to the new valve guide seal is avoided -B-.
–  Fit the new valve stem seal onto the installation tool -T20039-.
–  Oil valve stem seal sealing lip and slide the seal carefully all the way onto the valve guide.
Continue the installation in the reverse order of removal sequence, observing the following:
–  Install the camshaft → Chapter
  E15-0083

Valve seats: Reworking > < Hydraulic bucket tappet: check