You coulda pulled a screw off gone to ace and marched it upSo while changing my blown headgasket i went ahead and loctited my butterflys. They were all loose and the far right one was missing a screw and the flap was sitting sideways. I went and ordered the screw from the dealership. Had to buy a ten pack. As they dont sell them singely. I went ahead and cleaned the intake mani. Upper and lower. just with brushes. Do you think that is ok to do? Its not like a full P&P.