Thanks again, Steve. I didn't think my question was too broad, since I asked how tightening the valve that was loose made the tick louder. I was only trying to find out if he had done something that everyone here knows is totally wrong. But I am not a mechanic, and I am assuming that by your answer and credentials, it was a stupid question. I realize that I got a pretty great car for an amazing price, and that it will cost more than $100 to fix.