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Polo Mk4

Installation
Installation
Conditions
l  Prevent dirt and sealant residues from coming into the engine cylinder head.
l  The sealing surfaces must be free of grease and oil.
l  The cams in cylinder 1 must be facing upwards when installing the cylinder head cover and the camshaft.
l  The pistons cannot be in the TDC.
–  Remove sealant residues in the engine cylinder head and in its cover by using an ordinary sealant remover.
–  Lubricate camshaft contact surfaces with oil.
  Note
For rocker arms and support elements we have 2 suppliers „INA“ and „GTT“, which can not be installed on the same cylinder head → Item → Item
–  Install support elements on the engine cylinder head and respective rockers.
   
–  Make sure the rockers are properly positioned on the valve ends -1- and that the respective support elements -2- are properly coupled.
–  Carefully install the camshaft on the engine cylinder head bearings.
  N13-0471
–  Apply a thin and uniform film of Sealing compound for engines -AMV 188 001 02- or Sealing compound for engines -D 154 103 A1-on the clean sealing surface of the cylinder head cover.
  Note
Do not apply a thick film of Sealing compound for engines -AMV 188 001 02- or Sealing compound for engines -D 154 103 A1-otherwise, excess Sealing compound for engines -AMV 188 001 02- or Sealing compound for engines -D 154 103 A1- may penetrate the lubricating grooves or camshaft bearings, causing damage to the engine.
  N13-0473
–  Place the cylinder head cover carefully in the vertical position from top with the guides in the engine cylinder head holes -arrows-.
  Note
t  The cylinder head cover must be fit and fastened without interruptions, as the sealing surfaces start to harden as soon as they touch each other.
t  The cylinder head cover screws must be replaced.
  N15-0244
–  First tighten the screws in -Position 1- and -Position 2- alternately and in cross pattern with 6 Nm.
–  Then, tighten the other screws in the indicated sequence with 6 Nm of torque.
–  Then, tighten all screws 90° further.
  Note
After the cylinder head cover has been installed, the Sealing compound for engines -AMV 188 001 02- or Sealing compound for engines -D 154 103 A1- must dry for approx. 30 minutes.
–  Install the new camshaft seal → Chapter.
–  Continue installation in the reverse sequence to the removal.
Installing the toothed belt and adjusting distribution times → Chapter.
  R15-0006

Valve guides - check > < Operation sequence