a few days ago I adjusted the valves on my 2002 300EX becouse they started tapping kinda loud. I set them to .004 clearence useing a tappet feller gage I got from Chapparral motorsports. I made sure that the locknuts were tight, and that the rockers were both loose before making the adjustments, it was on the compression stroke like it's supposed to be. Well, now when you first start it you can still hear the tapping, but its not verry loud at all, you have to put your head right next to the motor to hear it, but when it gets warmed up, it taps louder that it did before. Is this normal? please help.

Thanks.