Water in Oil 70's Volvo penta

TDERBY56

Recruit
Joined
Jan 8, 2010
Messages
1
I am totally new to boating. I have recently aquired a boat from a friend that has a couple of things wrong with it. I picked it up this winter and know pretty much nothing about it except that it ran last summer, but it had noticable water in the oil. I tried to start the boat, just to see if it would turn over and it didn't. After further investigation I found that the starter selinoid is bad. I tried to tun the engine over using the flywheel since the starter was out. I heard a noise that sounded like ice splitting, it was very difficult to move, but once I broke it loose it spun as if it should. The only thing that was odd was that opon turing the flywheel it pushed up oily ice. I am not sure if water or oil usually flow through there or not. I guess my question is how to find where this water got into the oil? On a normal car I would guess a head gasket, but I know that both water and oil flow into the stern drive. Is there a common place where they may come into contact with one another? The boat is a 1972 glastron with a volvo penta 250 sterndrive and a 170 (I think) volvo penta inline 6. Any help will be much appriecated.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Water in Oil 70's Volvo penta

Go up to the Adults only sticky at the top of this forum. There you will find the OEM service manuals for your engine and outdrive. There are also cooling flow diagrams and oil flow diagrams. The engine and drive do not interconnect for oil, and the water pickup for the raw water pump is in the drive. That's it.
Sounds to me like you have a cracked block due to poor or no winterization.
 
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