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Removing and installing camshaft|Install > < Removing and installing camshaft

Octavia Mk1

Removing
Removing
  Note
t  The sealing surfaces at the bottom of the ladder frame and at the top of cylinder head must not be machined.
t  The camshaft bearings are integrated in the cylinder head and in the ladder frame. Before removing the ladder frame, it is necessary to slacken the toothed belt.
t  If the ladder frame has been detached, it is necessary to replace the seal of the camshaft and the rear end cover.
t  Pay attention to the sell-by-date of the sealant.
–  Remove the engine cover.
–  Remove top part of intake manifold → 1.6-ltr./75 kW Engine, Fuel Injection and Ignition System; Rep. Gr.24.
  Note
Seal the intake passages in the bottom part of the intake manifold with a clean cloth.
–  Remove timing belt guard - top part.
   
–  Position camshaft sprocket to TDC marking of cylinder 1 by rotating at crankshaft. Marking on camshaft sprocket must be aligned with arrow at toothed belt guard.
–  Slacken tensioning pulley and take off timing belt.
–  Then, turn the crankshaft back slightly.
  M13-0031
–  Remove camshaft sprocket. Hold the camshaft sprocket tight with the counterholder -T30004- for slackening the bolt.
–  Remove parallel key from the camshaft.
–  Slacken the bolts of the cylinder head cover from outside to the inside.
–  Remove cylinder head cover.
–  Remove rear timing belt guard.
–  Unscrew the nuts of bearings 5, 1 and 3. Then, slacken bearings 2 and 4 alternately diagonally across.
–  Take off ladder frame.
–  Carefully lift out camshaft and place down on a clean surface.
–  Take out the roller arms together with supporting elements. Place the parts down on a clean surface.
–  Ensure that the roller arms and the supporting elements are not mixed up.
  S15-0179
–  Remove the old sealant from the groove -arrow- of the ladder frame as well as from the sealing surfaces.
–  Ensure no dirt and sealant residues get into the cylinder head.
  N15-0450

Removing and installing camshaft|Install > < Removing and installing camshaft