XC90 AWD L6-2.9L Turbo VIN 91 B6294T (2004)
Check that the timing gear pulley is still in its limit position at the oval holes.
Tighten the center screw for the variable valve timing (VVT) unit. Tighten to 120 Nm. Check that the variable valve timing unit does not rotate when
tightening.
Install the center plug. Tighten to 35 Nm.
Timing gear pulleys without variable valve timing units
Install the timing gear pulley with two screws but do not tighten.
Check that the markings on the timing gear pulley and the upper timing cover correspond.
Installing the camshafts timing gear pulleys (B6294S)
Timing gear pulleys with variable valve timing units
Slacken off, but do not remove the screws which secure the timing gear pulley to the variable valve timing unit.
Press the variable valve timing unit / timing gear onto the camshaft.
Install the center screw which secures the variable valve timing unit to the camshaft. Tighten slightly.
Turn the variable valve timing unit anti-clockwise as far as it will go.
Slacken off the center screw
Position the upper timing cover.
Turn the timing gear pulley clockwise until the screws at the oval holes are in the limit position.
Continue turning clockwise until the timing gear pulley marking is 1-1/2 tooth before the marking on the upper timing cover.
Check that the timing gear pulley is still in its limit position at the oval holes.
Tighten the center screw for the variable valve timing (VVT) unit. Tighten to 120 Nm. Check that the variable valve timing unit does not rotate when
tightening.
Install the center plug. Tighten to 35 Nm.
Timing gear pulleys without variable valve timing units
Install the timing gear pulley with two screws but do not tighten.
Check that the markings on the timing gear pulley and the upper timing cover correspond.
Installing the timing belt