in addtion to what Jr wrote...incidently Don your automatic car doesn't have a dual mass flywheel...again, what you need to identify is if all the valve train sounds uniform or if it is an isolated rocker or injector creating the noise. Check your banjo bolts to be sure they are snug. Inspect the cam lobes to see if they are smooth and getting adequate lubrication...cam should be wet front to back. You may have missed a valve when adjusting them...VERY easy to do. I too check mine all the time and there always seems to be one out. If you identify an isolated cylinder...use a hose or long screw driver in lieu of a mechanics stethoscope versus a chorus of racket...then it may be a common failing eccentric. Unlikey though that all your eccentrics are bad if
have an aggragate of noise. What did you set your valves to cold?
George