I dont have a b16 but, i sure have had the ticking noise for a long time(6 years at least). I seen and been told that one, all hondas tick. And two, its not the valves its the rocker arms that are worn. Hydraulic valves adjust themselves, so how can you adjust the valves. I did have the valves re-gapped and double checked they were in spec. After we did that, it still ticked. Also, i've heard other b16's tick like crazy. Check the rocker arms. I would like to know what the deal is.