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Valve gear > < Crankshaft dimensions

Leon Mk1

Checking semi-automatic toothed belt tensioning roller
Checking semi-automatic toothed belt tensioning roller
Special tools and workshop equipment required
   
t  Torque spanners -SAT 8010-
Test sequence
–  Remove air filter → Fig..
–  Remove the protective plate from the exhaust manifold.
–  Mark direction of rotation and remove the ribbed belt → Chapter.
–  In vehicles with air conditioning/heating system, remove the tensioner for the ribbed belt.
  W00-2760
–  Remove belt pulley/vibration damper.
–  Remove toothed belt guard lower and upper parts.
  A13-0009
–  Now turn crankshaft twice fully in direction of engine rotation until it is again at TDC cylinder 1.
–  Place camshaft sprocket on the mark -arrow A-.
–  Position crankshaft at TDC cylinder 1. The ground-down tooth on the crankshaft sprocket must align with the mark -2V- on the sealing flange -arrow B-.
  N13-0599
–  Note the position of the tensioning roller indicator -arrow-. Press the toothed belt firmly with thumb. The indicator should move.
–  Release tension on toothed belt.
–  Turn crankshaft twice fully in direction of engine rotation.
–  Then check the position of the indicator. It should have returned to its original position.
If tensioning roller does not return to initial position:
–  Replace tensioning roller.
If tensioning roller is correct:
–  Install toothed belt guard lower and upper parts.
–  Install belt pulley/vibration damper.
–  Install tensioning element for ribbed belt.
–  Install the exhaust manifold protective plate.
   Tightening torque: 10 Nm
–  Fit ribbed belt → Chapter.
  Note
On fitting the ribbed belt, make sure that it is correctly located on the pulleys.
  N13-0048

Valve gear > < Crankshaft dimensions