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Skoda Workshop Service and Repair Manuals

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Valve stem seals, valves guides, valve seats > < Conditions

Octavia Mk1

Procedure
Procedure
–  Insert the supporting elements into cylinder head and place the roller arms onto the valve stem ends and supporting elements, respectively.
   
–  Ensure that all the roller arms are correctly positioned on the valve stem ends -1- and are clipped in place on the relevent supporting elements -2-.
–  Oil contact surfaces of camshaft.
–  Carefully place camshaft into the camshaft bearings of the cylinder head.
  N15-0451
–  Apply an even, slightly raised bead of sealant -D 188 800 A1- into the clean groove of the ladder frame -arrow-. Distribute the sealant evenly over the sealing surface.
  Note
t  The sealant must not be applied too thick. Wipe off any excess sealant with a non-fluffing cleaning cloth.
t  The ladder frame should be fitted on and bolted without any interruption as the sealing surfaces immediately begin hardening as soon as they come into contact.
t  Pay attention to the sell-by-date of the sealant.
–  Insert the rear end cover flush.
–  Fit on the ladder frame and tighten the nuts of bearings 2 and 4 slightly alternately diagonally across. Then, slightly tighten the nuts of bearings 3, 1 and 5.
  N15-0450
–  After this, tighten the nuts fully in the order shown to 20 Nm.
–  Install cylinder head cover, tighten the bolts fully diagonally across from inside to outside.
–  Install rear toothed belt guard.
–  Install new gasket ring of camshaft → Chapter.
–  Insert parallel key into camshaft.
–  Install camshaft sprocket and tighten to 100 Nm (use counterholder -T30004-).
  Note
When rotating the camshaft, the crankshaft must not be positioned at TDC. Risk of damaging valves and piston crowns.
The further assembly is carried out in reverse order to disassembly.
–  Installing timning belt, tensioning (setting timing) → Chapter 13-2.
  Note
t  After installing the ladder frame and the cylinder head cover, allow the sealant to dry for about 30 minutes.
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.
  M13-0035

Valve stem seals, valves guides, valve seats > < Conditions