A buddy and I had someone bring us a SUV with a lot of steam coming out of the exhaust. No water in the oil, and no oil residue in the water. There wasn't any bubbling in the radiator either (while running). We found one of the cylinders had a rusty spark plug. The same cylinder also had a rusty looking exhaust port. We pulled the head to inspect it. Nothing abnormal. Head gasket looked ok. Checked the head and deck for straightness and both were ok. I finally got it back together yesterday, and it's still getting an abnormal amount of steam out of the exhaust. Anyone run into this before? Any ideas?