I have a 96 honda civic 1.6 ils. The engine was over heating but when I take it out of gear and bring the revs up to about 4500 for a few secs it quockly cools back to normal. Then it cut out when I slowed down and will not even turn over now. I took the spark plugs out and two of them were coverd in oil. I checked the timing belt and it was fine. Any ideas.