Oil slick??

[BassCat73]

I'm still a rookie when it comes to boating, but I'm curious to know more about my motor. I started it up for the first time this year after it being winterized last fall. '92 Merc 115. It started up like a charm. I'm curious to know about the oil that comes out of the motor. I noticed a very thin oil or something spreading out on the top of the water behind my motor. Is it normal for a motor to do this to a small degree.

 

[Clams Canino]

Re: Oil slick??

Yes... it's just a little unburned mix. You think a '92 115 makes a slick, you outta see an 88 115. <br /><br />-W Owner: Mercury Valdez

 

[dajohnson53]

Re: Oil slick??

You oughta see an '82 Big Johnson V6.

 

[BassCat73]

Re: Oil slick??

haha, alrighty, I can see that it's normal. Thanks for the help!

 

[senecalaker]

Re: Oil slick??

You should see when a Jasper 350 w/310 HP lets loose and sends a piston through your block !!! An engine with less than 100 hours and never run above 4500 RPM at that !! (rated to 7200rpm)

 

[sprinkler]

Re: Oil slick??

I have an '88 100HP. Leaving the slick in the water bothered me as well. I ended up taking a small piece of cloth and placed on the south end of the engine block, the southern most place when you open the cowling. It soaks it right up. I replace it every few weeks and it keeps the oil out of the water. Maybe it's nothing, but I don't like looking at that slick in the water.

 

[dajohnson53]

Re: Oil slick??

Does south = aft?

 

[gss036]

Re: Oil slick??

You guys would love the water in our harbor when the commercial fishing boats (mostly old gilnetters) are fishing. Purse seiners are in the harbod over, thank goodness.<br />Your boat is pretty clean until you come up to the docks where the oil seems to collect and cling to the sides of your hull, really leaves a slimy mess to have to clean off, just water won't do it.

 

[DJ]

Re: Oil slick??

Does south = aft?<br />

Normally, aft means rearward.<br /><br />In this case I belive he means the bottom most (down) point.

 

[dajohnson53]

Re: Oil slick??

That's what I was wondering. It sounded like a good idea or something I'm going to check out with my engines (absorbant of some sort), but I couldn't visualize where he was doing it.

 

[DJ]

Re: Oil slick??

Some use a product such as these on the following web page-iboats, Mega Mall.<br /><br />http://www.iboats.com/mall/index.cgi?*******=134682589&**********=842152945&search_type=keyword&keywords=oil+absorbant&search_in_category=f&current_category=bilge+dry&submit.x=25&s ubmit.y=6

 

[SeaHorse]

Re: Oil slick??

On many motors there is a small oil/gas return line that sucks up the gunk from the air plenum. They usually plug up and then the mess spills overboard. The line gets plugged up right at the adapter to the plenum which is sized down to eliminate a big air leak into the motor. Add a little steel wool or other filter to keep it from plugging again. On some motors, the line cracked is missing altogether.

 

[sprinkler]

Re: Oil slick??

D. - Your crankshaft runs north-south (top-bottom) in your engine. So basically, follow the crank to its bottom-most point. I place the piece of cloth there. I don't know how this would apply to a Johnson V6, but my engine has a little spot for it. Basically I think my seals are a old so they leak a little. The cloth keeps the oils from running down into the lake.<br /><br /> http://home.xnet.com/~spring/engine.jpg (Lake Monona in the background, as a matter of fact!)

 

[dajohnson53]

Re: Oil slick??

Thanks. I have two outboards, one Merc, one Johnson, both old, and whether its seals or just the way they are - there's no danger of either getting any corrosion inside the cowling!