A valve timing control apparatus includes a rotor linked to a camshaft of an internal combustion engine. A drive member is linked to the drive shaft of the internal combustion engine and supports the rotor in a relatively rotational manner. A hydraulic chamber is partitioned by a vane and is disposed between the rotor and the drive member 30. The drive member includes an outer rotor forming the hydraulic chamber together with the rotor 2, a housing member including a front plate portion joined to one axial end of the outer rotor and a tubular portion linked the front plate portion and positioned on the outer radial side of the outer rotor, and a rear plate member joined to the other axial end of the outer rotor and to the housing member.

 
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< Detection of valve deactivation failure by monitoring exhaust temperature

> Camshaft assembly including a target wheel

> Variable valve system with control shaft actuating mechanism

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