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  Replacement → Anchor
Check the tool and equipment equivalence table according to the applicability between Seat / VW / Audi / Skoda → Chapter
   
Special tools and workshop equipment required
t  Counterhold -T20034D-, see equivalent → Anchor
t  Extractor -T20058A-, see equivalent → Anchor
t  Push rod -T20039-, see equivalent → Anchor

Removing
(with cylinder head in place)
–  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.
   
–  Position the valve tool -T20034D- with the adapter -T20034/34-.
–  Remove the valve springs.
  Note
The valves press on the piston crown.
  E15-0081
–  Extract the valve stem seals with the extractor -T20058A- .
  E15-0082
Renew
–  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.
Fit in reverse order from removal, remembering the following:
–  Install the camshaft → Chapter
  E15-0083

Valve seats: Reworking > < Hydraulic bucket tappet: check