OK, here is my question: My 03 Pilot has 238,000 miles on it and, to my knowledge, the valves have never been adjusted. Should I leave well enough alone or should I have the valves adjusted. I understand from the various YouTube videos I have seen that this is sort of a big deal, requiring the removal of everything on top of the engine. So, should I get it done or leave well enough alone? Thanks for your suggestions and comments....