Grease in through hub exhaust

[JOE ROLAND]

When we got back to the ramp and were flushing the engine the exhaust was smoking I shut the engine down and noticed grease inside the prop exhaust area. We had water going to the motor and were flushing at 800-1000rpm. We had run the boat for 8 hours fishing with no problems at troll or WOT. We did not get an audio warning for overheating. Looking for any help in figuring this out.

Thanks Joe

 

[Tiki35]

Re: Grease in through hub exhaust

Are you sure it was grease and not unburned oil?

 

[JOE ROLAND]

Re: Grease in through hub exhaust

I feel stupid because now I'm not sure. Felt like grease due to its feel but it was a greeenish/grey color (merc premium oil) which could be the oil mixed with the water. I did just recently topoff my oil tank and reset the oil level switch. Its a 2004 merc 150 2 stroke, what would cause that much un burned oil if that is what it is?

v/r Joe