hungoverracer

You really need to check the manual(s).

(1) The intercooler hose out leads to the exhaust manifold.
(2) Winterizing procedures specify adding x amount of straight (undiluted) antifreeze to both the intercooler and exhaust manifold.

These lead me to believe the intercooler uses intake water for cooling rather than the closed-loop engine coolant.

Looked in intake grate. Looked clean. Took a flashlight and looked in through the back. A rock almost as big as golf ball was wedged in the back grate behind the impeller. After removing all the external hardware (reverse, steering, etc.) I was able the wiggle the rock free and get it through the grate.

Sadly, the impeller suffered a little damage. There are dings on the leading edge and while rock was wedged behind the impeller, there are shiney spots at the tail of every fin. My next question is how much damage is too much? How do I tell if it's not right? Will it hurt anything else if I run it like it is? I hooked up water hose on trailer and it seemed fine. No vibrations that I noticed