skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

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Replacing the valve guides > < Removing and installing camshaft

Octavia Mk1

Testing hydraulic bucket tappets
Testing hydraulic bucket tappets
  Note
t  Always replace bucket tappet complete (cannot be adjusted or repaired).
t  Irregular valve noises when starting engine are normal.
Special tools and workshop equipment required
t  Feeler gauge
t  Wooden or plastic wedge
Test sequence
–  Start engine and allow to run until the radiator fan has cut in once.
–  Increase engine speed to about 2500 rpm for 2 minutes and undertake a test drive if necessary.
If the bucket tappets are still loud, check all faulty tappets as follows:
–  Remove cylinder head cover.
–  Turn the crankshaft clockwise until the cam of the bucket tappet to be tested is positioned on top.
–  Determine the play between the cams and the bucket tappet.
   
–  Press down the bucket tappet using a wooden or plastic wedge. If a 0.20 mm feeler gauge can be inserted between the camshaft and the bucket tappet, the tappet must be replaced.
  Note
t  After installing the camsaft, the engine must not be started for about 30 minutes. The hydraulic clearance compensation elements 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.
  V15-0708

Replacing the valve guides > < Removing and installing camshaft