Hello all, we just purchased a 2001 wj. I was able to drive it home but she runs rough. We knew it had a blown head gasket at the start but I got it home and checked the oil. Someone had over filled the motor about a quart.

the blown head gasket plus oil overload doesn’t sound like it will be a good combination. When I change the oil and head gasket, what should I inspect while I have the top disassembled? Should I tear down the valve cover and check rods? If a rod is bent should I replace them all? How screwed am I?

When you drain the oil, you may find that added quart is coolant.

What Dave said. Don't borrow trouble. You know you have to pull the head - start there.