Variable Valve Timing Unit, Checking And Adjusting: Tightening

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Fig 1: Identifying Center Plug In Variable Valve Timing Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

Undo the 3 timing gear pulley screws slightly. Install the center plug in the variable valve timing unit. Tighten following Summary of tightening torques for specific components .

Hold the center plug in place with 25 Nm while the 3 screws on the camshaft timing gear pulley are tightened. See 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 fastened.