Tension the timing belt

Fig 1: Identifying Needle Position At Varying Temperatures

Courtesy of VOLVO CARS OF NORTH AMERICA.

This adjustment is to be made with a cold engine. A suitable temperature is approximately 20°C/68°F. 

At a higher temperature, for example with a warm engine or a higher ambient temperature, the needle is further to the right.

The position of the needle when aligning the camshaft belt tensioner at different engine temperatures is shown in the illustration.

Fig 2: Belt Between Intake Camshaft Pulley, Idler Pulley And Crankshaft

Courtesy of VOLVO CARS OF NORTH AMERICA.

Tension the timing belt as follows 

• Carefully turn the crankshaft clockwise until the camshaft belt is tensioned. The belt should be tight between the intake camshaft pulley, idler pulley and crankshaft.
• Hold the belt tensioner center screw secure and turn the eccentric on the belt tensioner counter-clockwise until the tensioner needle passes the marked position.

  Then turn the eccentric back so that the indicator reaches the marked position in the center of the window.

• Secure the eccentric and tighten the center screw to 20 Nm (14.8 lb.ft)  .

Check that the needle is in the correct position.