Head fire rings

[Scooby d]

The engine has 15,000 hrs and 380 k miles and is used off road a lot. I do all my own truck work. I have been to peterbilt once and cat once in my life and ended up giving them money for nothing... wont go back. The fire ring was suggested to me by a local mechanic just in conversation so I had to look into it. Wont be doing that! As far as moisture in number 6 I wasn't very clear on that. Truck was starting to biuld excess rad pressure a couple days ago and I thought my egr cooler was maybe on its way out. Backed truck in my shop on last trip and it was pushing about 1 gallon per hr out the overflow. When I said moisture in #6 I should have said puddle or maybe small creek. Puddle in #6 intake and exaust valves, water in turbo, water in egr cooler. Took antifreeze out and added straight water incase it was making its way to the pan but no water in the oil. I am going to check my egr cooler for leaks also. Just my thoughts is a bad egr cooler sent water to the engine creating steam that took out the gasket... I don't know... what I do know is that I'm holding on to wrenches instead of my coffee cup today..lol