hi i noticed my car tapping on a cold start up it will tap and rattle for about 15 seconds and will settle down after that so im guessing its tappets. will this affect the power of the car much ?? allso were can i get info for doing the adjustment . i allso noticed some days my vtec cuts in hard and the car goes well other days the crossover is week and it doesn't do much could this be because of the tappets as i dont think they have ever been touched . thanks