A stay for keeping an oil control valve fastened to a sleeve extends across the outer surface of a head cover from the oil control valve and is fixed by a screw. Thus, the OCV is removable from the sleeve without dismounting the head cover from the cylinder head by loosening the screw from the outside of the head cover and detaching the stay.

 
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> Initialization of electromechanical valve actuator in an internal combustion engine

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