Assembly, Variable Valve Actuation: Removal

WARNING: This page is about a different variant/trim than selected.

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Remove the cylinder head cover (1)
Refer to COVER(S), CYLINDER HEAD, REMOVAL .

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Unlock and disconnect the oil temperature sensor electrical connector (1).
Disengage the oil temperature electrical connector from the bracket (2).

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Unlock and disconnect the four variable valve timing actuator electrical connectors (5).
Install the (special tool #10259B, Compressor, MultiAir® Spring) (2) with the tools four bolts (1) tightened to 9 N.m (80 in. lbs.).
Rotate the spring compressors (3) CCW until fully seated.

Fig 1: Variable Valve Actuation Assembly Removal/Tightening Sequence
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CAUTION:
Do not invert the variable valve actuation assembly when it is removed from the engine. Oil will drain from the assembly and excessive engine cranking will be required to refill the assembly and start the engine.
Remove the nine bolts in the sequence shown in illustration.
Remove the variable valve timing actuation assembly, with the spring compressor attached, from the camshaft bearing housing.

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Remove and discard the variable valve actuation assembly gasket (1).

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If required, remove the rocker arms
Refer to ROCKER ARM, VALVE, REMOVAL .

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If required, use an appropriate socket (2) and remove the oil temperature sensor (1).

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If required, remove the MultiAir actuator oil supply filter (2) from the camshaft bearing housing.