I wasn't even wrenching very hard, it just popped off. I thought I broke through to the internal cavity but it turned out to just be a bubble in the casting that looked like it went through. I imagine that bubble is why it happened...



I've got the super jb weld, it's getting ready to put its money where it's mouth is.

 

Sounds like a perfect excuse to get a header, but no , i have NEVER seen that.