Old Mercury Leaking 2-Cycle Oil

[l008com]

I've got a problem. My motor leaks 2-cycle oil. It's not a big enough leak that it affects the operation of the boat. If you fill the tank, it will still take a very long time to run out.

But it's getting everywhere. Every surface inside the cover is coated with oil. If I tip the motor up, pools of collected leaked out oil will spill down into the splash well or right onto the ground. When I put the boat in the water, eeeeshhhhh the size of the oil slick I leave is NOT good.

But where is it coming from? All of the hoses and lines I can see all look fine. Here's a little video taking a look around. You can see how theres oil everywhere, hopefully some people know where this might be coming from?

If the environmental concerns aren't reason enough to fix this, there's always the $30 to $45 per gallon marine 2-cycle oil

 

[l008com]

Oops I forgot the motor details:

1989 Mercury Outboard 90HP 2-Cycle 3-Cylinder
I can get the serial number too if anyone needs that for any reason.

 

[flyingscott]

Cracked tank, leaking hoses leaking check valve, take your pic. Get some degreaser and clean everything off under the tank. Then try to find your leak.

 

[racerone]

Replace the oil recirculation line from bottom of the block to the upper bearing.