2003 310 what is it? Help




2003 310 - started motor and water pouring out. Can’t get the 2 pieces back together. What is it? Thanks for help 



2003 310 - started motor and water pouring out. Can’t get the 2 pieces back together. What is it? Thanks for help
Comments
Note they are different from "Crowley's Yacht Yard" which is a highly respected yard in Chicago.