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Check hydraulic supporting elements > < Removing and installing camshafts

Octavia Mk2

Removing and installing roller rocker arm
Removing and installing roller rocker arm
Special tools and workshop equipment required
t  Extractor -T10133/3-
  Note
t  Replace O-rings.
t  Do not mix up used roller rocker arms.
Remove roller rocker arm for exhaust valves
–  Remove battery and battery tray → Electrical System → Rep. Gr.27.
–  Remove the camshafts → Chapter.
–  Drain coolant → Chapter.
–  Remove connection pipe for exhaust gas recirculation between mechanical valve for exhaust gas recirculation and radiator for exhaust gas recirculation → Chapter.
–  Remove connection fittings for coolant from cylinder head → Chapter.
   
–  Mark assignment of the roller rocker arms and the shafts for re-installation.
–  Release screws -4- and -5-.
–  Pull shaft for roller rocker arm -3- on the outlet side out of the cylinder head with the extractor -T10133/3- and remove roller rocker arm.
  Caution
If the screw plug -5- is loosened, the shaft for the roller rocker arms may rotate against the retaining plate. If a misshaping in the shaft is detected during a visual inspection of the thread, the shaft must no longer be installed, because the oil supply holes for the roller rocker arms do no longer fit in size. This can result in rubbing damage.
Install roller rocker arm for exhaust valves
Installation occurs in reverse order to removal. Pay attention to the following:
–  Lubricate roller rocker arm bearing with clean engine oil before installing.
  S15-0435
–  Slide new O-ring onto the shaft for roller rocker arm.
–  Insert shaft for roller rocker arm into the cylinder head and insert roller rocker arm simultaneously and consecutively.
–  Tighten fixing screw -4- to 10 Nm.
–  Replace the screw plug -5- and tighten to 10 Nm.
–  Attach connection fittings for coolant to cylinder head → Chapter.
–  Attach connection pipe for exhaust gas recirculation between mechanical valve for exhaust gas recirculation and radiator for exhaust gas recirculation → Chapter.
–  Install camshafts → Chapter.
–  Install battery → Electrical System → Rep. Gr.27.
–  Top up coolant → Chapter.
Remove roller rocker arm for inlet valves
–  Remove battery and battery tray → Electrical System → Rep. Gr.27.
–  Remove the camshafts → Chapter.
–  Mark the assignment of the roller rocker arm when installing again.
  S15-0435
–  Pull shaft for roller rocker arm on the inlet side out of the cylinder head with the extractor -T10133/3- and remove roller rocker arm.
Install roller rocker arm for inlet valves
Installation occurs in reverse order to removal. Pay attention to the following:
–  Lubricate roller rocker arm bearing with clean engine oil before installing.
–  Insert shaft for roller rocker arm into the cylinder head and insert roller rocker arm simultaneously and consecutively.
l  The shaft for roller rocker arm must be flush with the cylinder head.
–  Install camshafts → Chapter.
–  Install battery → Electrical System → Rep. Gr.27.
  S15-0435

Check hydraulic supporting elements > < Removing and installing camshafts