I noticed a week or two ago that when I start up my car first thing in the morning, It makes this nasty noise almost like a valve is super loose and rattling. After the motor (B16a) comes up to NOT the noise goes away. I checked it out today and it seems to be coming from the intake side of the motor. I figured that if the valves needed adjsutment then it would make that noise all the time not just when cold. Does anyone have any opther ideas or experience with this?