Dceramic

Trying to finish , r/r counter balance shaft went very well , did all necessary new parts. Oil pump, 4 cam adj. , Postion sensors , 2 complete oil changes,, , while running for awhile 2 gear approx 40 percent load . After coming home a clicking occurs on the drvr side , my guess is. VVT oil pressure... It pulses up until 2k rpm , then it gets quite .??? WHY ,,, and the oilpresures pulsating until 2 k rpm also , ideas would be helpful. Thank you very much.
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