Volvo U.P. 170 HP I/O 226 Cubic Inch Engine - MARINE - WATER IN OIL?

A friend has a boat with two Volvo engines for his I/O drives. One engine has water in the oil and he has not been able to trace the cause.

Can you provide any solutions? He is quite able to do a lot of the work himself.

He is also interested to know if there might be any identical engines for sale that he could use to replace this one.



Thanks for afvise received here so far. I forgot to mention that this boat dates back to the 1970's and he is the second owner so these engines have seen lots of years of service. The one runs well but this one is giving this trouble and engine runs erratically. Maybe this helps with getting different answers here but I suspect he is a candidate for another replacement engine.

Update 2:

To clarify the engine here is the specs. Year - 1971 VOLVO I/O 226 Cu. Inch _ could not find this engine in JASPER's. Is it know by another set of identifiers?? Also, is there another engine remanufacturer for this engine?? Thanks again for any help here.

7 Answers

  • 1 decade ago
    Favourite answer

    Sounds like a bad head gasket.

    Keep your fingers crossed that it is not a cracked block.


  • 1 decade ago

    I would suspect a blown Head Gasket or possibly a cracked head, as for a replacement engine I would try Jasper Engine,s to see if they could help.

  • Anonymous
    1 decade ago

    I had a similar setup and it turned out to be a Buick 6 Cylinder...water inthe oil can be caused by several things, blown head gasket, cracked or corroded exhaust manifold... Is this a closed fresh water cooling system, or a raw water cooled engine?....

  • 1 decade ago

    You won't be able to find this leak, its inside the engine. The water jackets wear down in time from corrosion, and water is now leaking past the jackets and into the crankcase. If the engine runds fine otherwise, I would ignore it for now and do regular oil changes throughout the season. There really is no repair, just a new engine. But it may run fine for many more years.

  • What do you think of the answers? You can sign in to give your opinion on the answer.
  • Anonymous
    5 years ago

    Speaking of kill, I think you should be sure to go to a vespers service before riding it. But why stop at half measures? Drop in a General Electric F414-GE-400 turbofan from an F-18. Then it will be a motility scooter. Or more likely, morbidity.

  • 1 decade ago

    All marine engines have external oil coolers, if water is left in the cooler during the winter they will freeze and burst internally which will let water in the oil lines.

  • Anonymous
    1 decade ago

    head gasket or some other gasket that is blown or unseated.... why does he think there is water in the oil?? smoke??? that would indicate that there is oil in the fuel...

Still have questions? Get answers by asking now.