On the passenger side of the engine bay there is smoke coming from behind the engine. The back half of the valve cover has oil on it and near the rear of the engine it is completely covered, not like its dripping off and puddling. I was thinking maybe it needs a new gasket but wasnt sure. Since there is oil halfway up the valve cover, is it possible te affect the front components of the motor, i.e. opti, alternator, serp belt etc?