Reassembled my b20v motor and still hear this weird tapping noise...LMA's have been cleaned I have no bent valves shortblock has 20-30k...It was reassembled because there were more than one compounding issue aiding to the noise...the spring on the transmission fork lost tension(replaced that),1 cam cap was wrong on assembly-result it ground one of the journals-cleaned with 1000-2000 grit sandpaper to debur the score that was left and located the right cam cap and the head was good to go...valve adjustment was done according to Acura spec .06 and .08 I believe on the valve clearance...torqued down arp studs to 80 footlbs as suggested and the rest as follows...only get the tap on lower rpms...btw the head is fully built supertec .5mm over on the exhaust and intake valves type R cams dual valve springs and titanium retainers b20 low compression 8.8:1 block...can't figure out the tap need some feedback