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Home >> Volvo >> 2011 >> XC90 AWD V8-4.4L VIN 85 B8444S >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Variable Valve Timing Actuator >> Service and Repair >> VVT Unit Intake Camshaft, Replacing
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VVT Unit Intake Camshaft, Replacing






VVT unit intake camshaft, replacing

Operation number: 215557-2

Note! Some variation in the illustrations may occur, but the essential information is always correct.

Removal

Remove camshaft chain. Refer to: Camshaft chain, replacing, B8444S Camshaft Chain, Replacing



















Caution! Note the position of each component before removal.





On both sides.






Caution! Note the position of each component before removal.

Caution! Take extra care when handling the components.

Note! Do not loosen the bolts more than 2 turns.



























Caution! Note the position of each component before removal.

Caution! Take extra care when handling the components.

Note! Do not loosen the bolts more than 2 turns.











Installation


Note! For tightening torques, see: Tightening torque, B8444S [1][2]Specifications






Note! Only tighten the bolt finger tight at this stage.























Caution! Note the position of each component before removal.

Caution! Take extra care when handling the components.

Tighten each bolt 1 turn at a time.
Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications





Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications






Note! Make sure that a new component is installed.





Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications










1. 999 7232 Key 999 7232 Key
2. Tightening torque: Centre screw VVT-unit (pretightening). According to Tightening torque, B8444S [1][2]Specifications





1. 999 7232 Key 999 7232 Key
2. Tightening torque: Centre screw VVT-unit (pretightening). According to Tightening torque, B8444S [1][2]Specifications





1. 999 7229 Counterhold 999 7229 Counterhold
2. Tightening torque; M12 according to Tightening torque, B8444S [1][2]Specifications






Note! Only tighten the bolt finger tight at this stage.



























Caution! Note the position of each component before removal.

Caution! Take extra care when handling the components.

Tighten each bolt 1 turn at a time.
Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications





Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications






Note! Make sure that a new component is installed.





Tightening torque M6 according to Tightening torque, B8444S [1][2]Specifications





999 7236 Position setter 999 7236 Position Setter





1. 999 7232 Key 999 7232 Key
2. Tightening torque: Centre screw VVT-unit (pretightening). According to Tightening torque, B8444S [1][2]Specifications





1. 999 7232 Key 999 7232 Key
2. Tightening torque: Centre screw VVT-unit (pretightening). According to Tightening torque, B8444S [1][2]Specifications





On both sides.
1. 999 7229 Counterhold 999 7229 Counterhold
2. Tightening torque: M12 according to Tightening torque, B8444S [1][2]Specifications

Install the camshaft chain according to: Camshaft chain, replacing, B8444S Camshaft Chain, Replacing

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