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Valve dimensions for engine with engine identification characters BMM > < Checking hydraulic bucket tappets for engine with engine identification characters BMM

Octavia Mk2

Replacing valve stem seals for engine with engine identification characters BMM
Replacing valve stem seals for engine with engine identification characters BMM
Cylinder head fitted
Special tools and workshop equipment required
t  Assembly device for valves -MP 1-213 (2036)-
t  Extractor -MP 1-206 (3047 A)-
t  Insertion tool -MP 1-306 (10-204)-
t  Valve lever -MP 1-211 (VW 541/1A)-
  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
–  Remove the camshafts → Chapter.
  Note
t  Ensure that the used bearing shells of the camshaft are not mixed up (pay attention to marking).
t  When installing the camshaft, ensure it is correctly located in the retaining lugs of the bearing shells in the bearing caps and in the cylinder head.
t  Ensure that the bucket tappets are not mixed up, for this step mark the assignment with waterproof marker on the reverse side.
–  Remove bearing shells of camshaft from the cylinder head.
–  Remove bucket tappets and lay aside with the contact surface facing down. Make sure the tappets are not interchanged.
–  Position piston of the relevant cylinder to top dead centre (TDC).
   
–  Insert the assembly device for valves -MP 1-213- and adjust bearing to the stud bolt height.
–  Remove valve springs with valve lever -MP 1-211-.
  Note
The valves rest on the piston crown.
  S15-0171
–  Use pulling device -MP 1-206- to pull off valve stem seals.
Install
  S15-0172
–  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 1-306-.
–  Oil the sealing lip of the valve stem seal and carefully slide into the valve guide.
–  Remove plastic sleeve.
–  Reinstall valve springs and secure with collets.
–  Insert bucket tappets.
–  Install camshafts → Chapter.
  Note
t  After installing the camsaft, the engine must not be started for about 30 minutes. The hydraulic bucket tappets must settle (otherwise valves would strike the pistons).
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.
  S15-0173

Valve dimensions for engine with engine identification characters BMM > < Checking hydraulic bucket tappets for engine with engine identification characters BMM