I bought a mercury 60 6hp. Put it in a barrel. Started easy but couldn't see any water exiting any where. Motor got hot shut down. Put in new impeller. Still no water exiting any where. Tore down and cleaned all water jakets. still no water exiting. Is there a pisser on this motor. Where does the water exit on this unit. seriel number is 2467754 don't know the year. it is a mercury 60 6hp.