Ok heres my problem guys, my car runs fine with the acception of clicking valves during the first few seconds after starting the engine, and i mean theyre really really loud! And after a fresh oil change this tapping dissapears for about a month then its back, could this mean something is worn? BTW i do have a leaky valve cover gasket but its not leaking huge amounts of oil so i know its not from low oil, and the engine is a 1.8 dohc with about 104,000 on it. Help!! I wanna know all the different possibilites that could be causing this, and one other thing, if it is worn cams, how much would a new set of cams run me and are they hard to replace? Thanks to whomever reads this huge thread and answers ahead of time!