Oil dripping from my motor from cowling...

[aristotle]

I noticed that after getting off the water and storing my boat that a thick layer of black oil?? seeps out of the motor from under the cowling and all down my shaft. It's dark colored. <br /><br />I went to have it serviced recently and both of the thermostats were seized open and one closed. Apparently one side was running hot and the other cold. My compression now is 100 on the hot side, port side, and 115 on the cold side, SB side. The place I had it serviced at suggested that I needed my head gaskets replaced. <br />would that help alleviate the driping oild from under my cowling? <br />I took it on a trip and it performed fine for the 3 day trip. Should I be immediately concerned? I can take pics if need be. <br />It's a 1993 90hp Johnson v4.

 

[itstippy]

Re: Oil dripping from my motor from cowling...

You should be immediately concerned enough to figure out where the oil slick is coming from. I don't know much about V4's, but the first step in troubleshooting any oily motor is the same. Look it over like a forensic scientist. Is it spraying oil all over the top of the cowl and running down the sides? Is it leaking out the bottom of the exhaust covers? Front of the motor? Rear of the motor? This could be something really simple like a loose oil line that takes puddled oil from the bottom of the crankcase and feeds it back into the top, or it could be something more serious. Look. Hard.

 

[itstippy]

Re: Oil dripping from my motor from cowling...

I got to thinking about my reply. Have you had this motor for a while and the oil leaking down the leg is a new development? Or is this motor new to you?<br />All 2 cycle outboards are messy and most will ooze some unburnt oil down the leg when they sit for awhile after you use them. I just assumed it was a motor you are used to and the oil seepage has become excessive.

 

[aristotle]

Re: Oil dripping from my motor from cowling...

No, it's a totally new to me re-power. I installed it a few months back and just recently got it serviced before I took it out for the first time a few weeks ago. It doesn't leak at all until after I put it back on the trailer. And then after a day or two it begins to leak out oil down the shaft from under the cowling. No oil spraying under the cowling, it's just leaking from the bottom of the motor somewhere. I'll look harder. <br />I do remember that I did add a little too much oil as my new gas gauge was off and there was more fuel in the tank then I anticipated and put enough for 12 gallons. ended up there was actually a 3rd of the 12 gallon tank left.

 

[aristotle]

Re: Oil dripping from my motor from cowling...

TTT