Ok i have a 2.5 mercruiser on a 89 thundercraft. I can turn the moter over just fine with muffs of course, but i dont belive my engine is getting water. my temp rised a little to about 180 and i shut it off after 2 minutes seemed fine. but after i shut it off i went to turn the water off and noticed little bit of rust water under the boat. i popped the hose off the engine and seen no signs of water ust rust the boat hasnt been started in over a year so do you think its my water pump that went bad?
