I have an 08 S-185 with 4300 hrs, bought it new, has been a great machine. Today it started overheating and since I had power washed the coolers just 60 hrs ago I suspected another cause. When I checked the oil I found it over full and oil thin. No foaming, still dark in color but definitely thinner. I believe the over filled crack case is due to diesel getting into the crack case. What can cause this. I forgot to mention it is a Kubota engine. I appreciate the help.
fuel lift pump is leaking. :drinkup
It was the lift pump. Thanks crewchief.