volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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Checking hydraulic bucket tappets > < Removing

Golf Mk4

Installing
Installing
Prerequisite
l  The pistons must not be positioned at TDC.
  Note
t  When camshaft is installed, No. 1 cylinder cams must point upwards.
   
t  When installing bearing caps, note that caps are not symmetrical; before installing bearing cap, set in place and determine fitting position.
Procedure
–  Oil camshaft running surfaces.
–  Insert camshaft.
–  Tighten bearing caps 2 and 4 alternately and diagonally to 20 Nm.
–  Lightly coat contact surface of bearing cap 1 with sealant -AMV 174 004 01-.
–  Install bearing caps 3, 1, and 5 and tighten to 20 Nm.
–  Insert woodruff key in camshaft.
  Caution
When camshaft is turned, crankshaft must not be at TDC. Danger of damage to valves and piston crowns.
–  Install camshaft belt pulley. When tightening bolt of camshaft belt pulley, secure with counterhold -3415-.
  V15-0098
Torque setting: 100 Nm.
Further assembly is basically the reverse of the dismantling procedure.
Installing toothed belt and adjusting valve timing → Chapter.
  Note
When new bucket tappets have been installed the engine must not be started for about 30 minutes. Hydraulic compensation elements must settle (otherwise valves will strike pistons).
  N15-0454

Checking hydraulic bucket tappets > < Removing