99 hyundai accent 1.5L It starts to smoke when it sits at an idle for one min, when you take off from a stop it smokes but after it gets going it runs great and does'nt smoke at all. I check for water in the oil and the oil is fine. I really think its something in the head like a valve or valve guide seal. I don't know if I should have a machine shop fix the head or get a whole used motor with low miles on it and replace the existing one. I'm asking advise from a Professional mechanic deals with Hyundai's. Plus, Is there a website that I can go to that's free to get instructions on the repair and torque specs.