Installing And Adjusting The Variable Valve Timing Unit/Gear Pulley On The Camshafts: Tightening

Fig 1: Holding Center Plug At While Tightening The Camshaft Timing Gear Pulley Screws

Courtesy of VOLVO CARS OF NORTH AMERICA.

Slacken off the 3 timing gear pulley screws slightly (applies to both timing gear pulleys).

Install the center plug in the variable valve timing unit. Tighten. See: Summary of tightening torques for specific components .

Hold the center plug at 35 Nm  at the same time as tightening the 3 x screws on the camshaft timing gear pulley to: Summary of tightening torques for specific components .

This is to ensure that the variable valve timing unit is in its end position when the timing gear pulley is tightened.

Tighten the 3 screws on the timing gear pulley for the exhaust camshaft. Tighten Summary of tightening torques for specific components

Fig 2: Identifying Timing Markings And Belt Tension

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove: 

• See 9995452 from the rear of the camshafts
• See 9995451 . install new plugs with new  sealing washers. Tighten. See: Summary of tightening torques for specific components .

Install the deflection limiter washer on the piston rod for the tensioner/damping unit.