Just did the same thing to my 99 Teg LS that I just bought with 67k miles. It was a little loud so I thought it just needed a valve lash adjust. After I got done, it was alot louder? And yes, this was done with the engine cold after sitting overnight.
According to all the repair instructions, they are adjusted at each piston's TDC...1,3,4,2. Before I adjusted them, looking at each cam for intake and exhaust, the side of the lobes for each are still in contact with the rocker at TDC. But there was plenty of gap between the cam and rocker on the other cylinders where the lobes were pointing away from the rocker. When I did the adjustment @ TDC, I had to back the adjustment screws way off (3or more turns) to get it to the specified clearance, using a 0.003" feeler for the intake adjustment and 0.006" for the exhaust. I held the adjusters in place with a screwdriver as I tightened the locknut.
Now, common sense to me would say to set the minimum clearance with the cam lobes 180° from the rocker. But reading that setting them too tight would burn the valves made me stick to what was written in the adjustment procedure. Now I've got a clattering engine and I'm left scratching my head. I know Hondas shouldn't be this loud.
Can someone enlighten me or give me some peace of mind? Thanks in advance from a Tegnoob.