oil coming out of exaust

[cvstucco]

I have a 2002 mercury 225 saltwater. I just had the impeller replaced and got the boat home, put on the ears and turned the water on and started the motor, it smoked alot and I noticed oil or grease/water mixture coming out of the exaust . i then turned the motor and water off and then seen the same oozing out of the two pee holes. what could be the problem?

 

[gss036]

Re: oil coming out of exaust

Sounds like oil residue build up in the exhaust. Maybe time for a serious decarb.

 

[cvstucco]

Re: oil coming out of exaust

The motor only has 21 hours on it, It has been sitting for most of its life. i had a new fuel pump put on it and a new impeller, new plugs and changed all fluids. could it be just fro storage or maybe the grease from over packing the impeller?

 

[gss036]

Re: oil coming out of exaust

No grease used in the impeller. Maybe somebody was smart enough to do do a heavy fogging job on the engine before putting it in storage. If you have a portable tank, mix a couple cans of SeaFoam with a couple gallons of fuel, add oil if not injected, and take it out and cruise for a few minutes at low speed, let it sit and restart it and then do it again. Then run it for 10-15 minutes at about 1/2 throttle. You should get a "LOT" of white smoke. Hopefully this will clean it out.
Pretty common problem.

 

[cvstucco]

Re: oil coming out of exaust

Thanks for the info. I hope this is all it is. The motor runs fine but does have a small miss in it. Thanks buddy!