Originally Posted by Im2c0oL
... but again if it's not very noisy I wouldn't do it by then, just going to take the valve cover off to see if there's any gunks in there and clean them up...
The logic of going to all the trouble to get the valve covers off, but not checking clearances escapes me. In any event, as I read the maintenance schedule, you are supposed to check/adjust valve clearances at 7-yr/105K (or when you get the "4" plug/timing-belt code). The "adjust only if noisy" recommendation applies to all other times.
Valves can tighten clearances over time and if they do, they will become quieter, not noisier. Not sure about the Pilot, but with most engines, the wear pattern is towards tightening clearances, not loosening. And if you loose clearance all-together, you starting loosing compression and the valve burns up, worst case, breaking off and destroying the engine. I'm not sure why folks are so paranoid about the belt breaking and non-nonchalant about this failure scenario.