Quote Originally Posted by RyanB View Post
I'll take the bashing, honestly it scared the hell out of me hear that. This was one of my main reasons for wanting diesels. The only think that I can think of is that I had the idle up too high and held the throttle cable open and it flooded?

I've had several different carb guys tell me that the amount of gas it take to pop a muffler that far downline, is very unlikely. Still, I'm a bit hesitant to push the start button again....
It takes very little gas, It is the fumes that could started a flash rite at the exhaust manifold, and like a flash going down a gun barrel, your flash traveled until it hit something hard; non-compressible pool of water in the muffler bottom.
IMO; Your carb guys don't know much about marine systems and what little it takes to cause such damage.

Just had an idea, an example maybe; race cars engines, that pour the gas in, with straight exhaust popping and flashing.

You may have experienced just one of those exhaust pops.
Just one....