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Timing belt semi-automatic tension roller: verification > < Notched belt: removing

Leon Mk1

Notched belt: fitting
Notched belt: fitting
  Note
t  When turning camshaft, crankshaft should not be at TDC. Danger of damage to the valves/piston base.
t  Engine at tepid temperature at most.
–  Place the timing belt on crankshaft sprocket and the coolant pump (observe direction of rotation).
   
–  Make the mark on the camshaft sprocket and the mark on the notched belt guard coincide.
–  Install middle and lower toothed belt guards.
–  Fit the vibration damper/belt pulley using new bolts. Tightening torque: 10 Nm + 90°.
  A13-0691
–  Place the crankshaft on the vibration damper on the TDC cylinder 1 -arrows-.
–  Fit the timing belt onto the tension roller and the camshaft wheel.
  Note
  A13-0076
Ensure the correct seating of the tension roller in the cylinder head.
  A13-0078
–  Tense the notched belt. For this purpose, turn the pin wrench -T10020- on the eccentric adjuster to the left (direction of the arrow) until the indicator -2- is positioned above the notch -1- (over tensioned toothed belt).
  Note
Repeat this operation (tension the timing belt) five times so the timing belt settles.
–  Now tense the toothed belt until the notch -1- and the pointer -2- align.
–  Tighten the fastening nut to 20 Nm.
–  Rotate the crankshaft twice in the normal direction of rotation so that it is positioned back on the TDC cylinder 1. It is important that the final 45° (1/8 turns) are performed without interruption.
–  Check again if timing belt is tense. Specification: Needle and notch align.
–  Check valve timings again.
If the marks do not coincide:
–  Readjust the valve timings.
–  Fit the engine bracket on the cylinder block from above and tighten both top fastening bolts to 45 Nm.
–  Lower the engine up to assembly position.
–  Screw in the bottom bolt and tighten the bolt to 45 Nm.
–  Fit the engine assembly support completely. Tightening torques → Chapter
  N13-0402
–  Bolt the engine support assembly to the engine support -arrows-. Bring the surfaces into contact using the suspension device -10-222A-. Tightening torque: 60 Nm + 90°
–  Remove support bracket 10-222 A.
–  Install toothed belt cover (top section).
–  Installing the Poly-V belt → Chapter.
–  Install the coolant expansion tank.
–  Fit the soundproofing elements → Bodywork-exterior fitting tasks; Rep. gr.50
–  Fit engine cover .
  N10-0437

Timing belt semi-automatic tension roller: verification > < Notched belt: removing