The lower unit is where the gears are. That's what turns the prop, it's where the exhaust comes up, some of the motor picks up the water. And the problem with the lower unit is being down so low is it wants to hit the bottom. Like if you come into shallow places which where I like to fish a lot, lower unit's the first thing to hit the ground so it's easy for it to get damaged.
So you've got to pay attention and try not to get into too shallow water, get around those rocks, and do some damage to the propeller. But the lower unit is as deep as it goes. It's down two-feet below the boat so anything that's down there, the lower unit's going to hit it.
So it's going to get banged up from time to time. I got a couple of pretty good size burrs on there right now from where I took off in some extra shallow water. The two things wrong with that is; one is you can cut your fingers on it just by holding on to it, and the other thing is that it creates air bubbles. When that motor's going through the water at 70 plus mile an hour, if there's any catch on the edge of those props or on the fins, that's going to cause - create turbulence, it's going to cause air bubbles. So what we're trying to do is get rid of those bubbles.
If it's pretty good size burr, I'll just use a file and file them away - just smooth it down. And if the burr is not that big, then you can use some steel wool. If it is getting all messed up, and has a lot of scratches, just use a little steel wool, polish it up and then use touch-up paint, metallic, Evinrude Johnson, they also have it in white. If you've got an older Johnson or the Hundred Anniversary edition, use the smoke color.
So take this, spray right on and now your lower unit looks brand new.
How to Paint your Outboard Engine
A couple things about Drives, this one, you can see the paint has worn away. The zincs are old and needs new paint. Give a light sanding. You don't have to sand it all the way down. Put a coat of Primocon on and two coats of Pacifica Plus. It's really good antifouling paint for aluminium outdrives or any kind of outdrive because it doesn't contain any copper. It works really well as far as antifouling protection. That will be two coats there and brushing on.
Brushing on is always better than spraying it on because you'll get a much heavier coat of paint, the paint will last longer, and they give you better antifouling protection