Thanks glamis, and your heads-up on the 53 block is much appreciated. I did some reading up on the 53 block and the thing that would scare me, not knowing the coach, is that from what I read the engine could be started and allowed to idle until warm and not leak, even if it already has a small crack. So I could see no coolant leaks and drive it off. But from what I read the crack would continue to get worse until more coolant is lost. I don't know enough to be certain. I can look underneath to see if I see stains but I'm not certain I could tell if it had a crack existing or beginning or not.
