Tighten the timing belt

Fig 1: Identifying Needle Position At Varying Temperatures

Courtesy of VOLVO CARS OF NORTH AMERICA.

This adjustment is done on 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 illustration shows the position of the indicator when aligning the timing belt tensioner at different temperatures.

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

Courtesy of VOLVO CARS OF NORTH AMERICA.

Tension the timing belt as follows: 

• Turn the crankshaft carefully until the timing belt is in pulling position.

  The belt shall be tight between the inlet camshaft gear, idler gear, and crankshaft.

• Fix the belt tensioner center screw in position and turn the belt tensioner eccentric counter-clockwise until the tensioner indicator passes the marked position.
• Then turn the eccentric back so that the indicator reaches the marked position in relation to actual temperature.

  At 20°C/68°F, the indicator shall be centered in the window.

  See Fig 2.

• Hold the eccentric secure and tighten the center screw with 20 Nm  .

Check that the indicator is in the correct position. 

If not, do a new adjustment.