Oil in the sump

[sinewave2]

put the boat in to day and went to check the oil before starting it up and found no oil in the engine ! but there was oil in the engine sump bilge, also with the anti freeze. could this be just a lose oil sump fitting or am i in for more work that i want? It''s a 87 universal M-18

[DelmarRey]

With both antifreeze and oil in the bilge it could be a few of things.
1) a badly blown head gasket
2) a cracked block (hope not!)
3) a cracked head
The next question would be: were you running the engine on no oil.
Do you have an oil pressure alarm? And does it work?

[hamiam]

I had a similiar situation when the raw water pump belt broke and the engine overheated causing the head to warp.