Operation CHARM: Car repair manuals for everyone.

Timing Belt Tensioner











- Release the tension on the toothed belt again.

- Tension the toothed belt until the notch and tab align.

- Tighten the semi automatic tensioning roller nut to 25 Nm.

- Rotate the crankshaft two additional turns in engine rotation direction until the engine is at TDC again. For this, it is necessary that the last 45° (1/8) rotation is turned without interruption.

- Check the tension of the toothed belt again. Target value: the tab and notch are positioned across from each other.

- Check the valve timing again.