1987 omc cobra Chev 4 cyc 3.0<br />Let me 1st say TY to everyone for all your help..Quick story,In March of this year I got my boat out to see how it done over the winter,always pull drain plug on exaust manifold & drain water out & i do this about 2 or 3 months( time for evaporation to get the rest) before cold weather sets in & it not usually that cold here in the south, Found 2 soft spots in the floor & decided to see if i could fix it, thats when i found "IBOATS", after reading & asking questions I replaced my floor, looks gr8 & Solid. Next from reading i realized my gimbal bearing, bellows & shift cable needed to be replaced Got that done, finished it Friday, So Im ready to take it to the beach today, decided to check my Oil again after seeing so many posts here about Oil in WATER, Guess What!! OIL in Water. Oh & i did check the oil in spring & no Water in oil.After searching & reading so many post on this subject I really dont think my block is cracked. I have noticed water setting on top of my motor & the Minifold its 4 years old with me & I dont know how long the guy before me had it, May be 16 years,Im just hoping its something simple & inexpensive. ? Sorry for the long post.