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Skoda Workshop Service and Repair Manuals

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Reworking valve seats > < Inspect valve guides

Fabia Mk1

Replacing valve stem seals
Replacing valve stem seals
Special tools and workshop equipment required
t  Assembly device -MP 1-213 (2036)-
t  Extractor -MP 1-206 (3047 A)-
t  Insertion tool -MP 1-212 (3129)-
t  Valve lever -MP 1-211 (VW 541/1a,/5)-
  Note
t  With cylinder head removed:
t  Remove glow plugs from the cylinder head → Chapter.
t  Remove unit injectors from the cylinder head → Chapter.
t  Position cylinder head on a suitable flat valve supporting plate.
Removing
(Cylinder head fitted)
–  Remove the camshaft → Chapter.
–  Remove bucket tappets and lay aside with the contact surface facing down. Make sure that you do not mix up the tappets.
–  Position piston of the relevant cylinder to dead centre.
   
–  Insert the assembly device -MP 1-213 (2036)- and adjust bearing to the stay bolt height.
–  Remove valve springs with valve lever -MP 1-211 (VW 541/1a,/5)-.
  Note
t  The valves rest on the piston crown.
t  Release safety valve collets that are tight by striking with light blows of a hammer on the valve lever.
  S15-0171
–  Use pulling device -MP 1-206 (3047 A)- to pull off valve stem seal.
Install
  S15-0251
–  Insert the supplied plastic bushings -A- on the relevant valve stem. This will prevent any damage to the new valve stem seals -B-.
–  Insert the new valve stem seal in the insertion tool -MP 1-212 (3129)-.
–  Oil the sealing lip of the valve stem seal and carefully slide into the valve guide.
  Note
t  After carrying out work on the valve gear, carefully crank engine at least 2 revolutions to ensure that no valve touches the piston when the engine is started.
t  After installing the camshaft, the engine must not be started for about 30 minutes. The hydraulic clearance compensation elements must settle (otherwise valves would strike the pistons).
  S15-0252

Reworking valve seats > < Inspect valve guides