Put several coats on it wet sand lightly with 2000 and then polish it back out. Painting Outboard Parts.
Then use a good quality Zinc Chromate primer under your choice of primer and paintpreferably good quality marine paint but others have used everything.
Painting outboard motor lower unit. Next youre ready for paint. Most outboard lower units are cast from aluminum. Exposing bare aluminum to water even fresh water invites corrosion.
You can protect the sizeable financial investment in your ourboard with just a few cents of primer paint. When you sanded and removed the topcoat color you likely found a greenish undercoatprimer. Clean and prep the lower by removing any and all paint preferably get it to bare aluminumeither by sanding or using a chemical type stripperbe careful not to damage any of the seals.
Then use a good quality Zinc Chromate primer under your choice of primer and paintpreferably good quality marine paint but others have used everything. Painting an Outboard Lower Unit Video Transcript. Hey there Dangar Stu here.
Last time we saw this gear box I was sending it off to be sandblasted I actually think it was blasted with macadamia nut shells but you know the idea is the same. I have a 1986 Mercury 25 hp outboard with a lower unit that has seen better beauty days. The paint has pitting and general rough feel to it.
So today pulling out the sanding tools. My plan is to gently remove paintprimer layer with minimal removal of base aluminum. Not looking for show car quality just want it to look good.
Painting an outboard lower unit. I painted my lower unit and after two full seasons its still looking very good - no chipping or peeling. The procedure is the same as any paint job.
Sandrough up prime special aluminum primer paint - and maybe sand between coats if desired and needed. Painting Your Outboard Motor. Give your outboard new color with the Quantum 2K kit.
A heat gun or blow dryer is helpful in loosening old decals but be careful not to overheat and damage the fiberglass cowl and shroud. Use denatured alcohol to remove the adhesive residue. With my 2k primer I painted 3 coats for good coverage Cowling Mid Section Lower Unit - let flash 10 minute in between and then sanded with 400 grit.
Using a Primer sealer in a can Sealed all of my primer work sanded with 600 - wax grease remover. Normally BEFORE priming and painting a lower unit I would first rebuild and reassemble in to a sub-assembly. However upon further examination the weakest point of all lower units appears to be worn out.
The shift sliding member OMC term or clutch dog has had its ears worn by improper shifting. Thus it will need replacement. Once its cleaned use whatever tools you have at your disposal to sand the paint off the entire midsection clamp brackets trim unit swivel bracket steering arm and lower unit.
Sand with 150 grit to start working your way to 220 and then 400 grit to prep for paint. Wet sanding with water will help keep the sandpaper from clogging up. Yamaha Outboard Engine Cover Spray Can Painting - YouTube.
Yamaha Outboard Engine Cover Spray Can Painting. If playback doesnt begin. I had same issue with my lower unitskeg all scraped up from oyster shells and sand bars Advance Auto has a very good match in the spray paint area called something like gunmetal greyblue or similar.
Its almost the exact same as the Yamaha greyblue color and after you spray it on youd have to look hard to see the difference. Degrease the surface sand it good nice and fine prime it paint it. Put several coats on it wet sand lightly with 2000 and then polish it back out.
This will smooth out any orange peel and make it shiny and smooth. Never wax the lower unit. It will slow you down considerably.
The wax disturbs the laminar flow of water over the surface. You may as well just drag a sea anchor. Posted 04-07-2009 1008 AM ET US I use spray wax on my outboards lower unit every time I wash it and clean it.
Hi David as with any paint job preparation is the key to a good outcome. Thoroughly clean the area affected and then you get the BRP primer PN 777172 the White PN 77171 or Blue PN 351907 and if you want as good a finish as possible at. Moeller Engine Paint - Volvo Heat and solvent resistant acrylic lacquer is formulated for the extended staying power boat engines need.
For use on all outboard inboard engines stern drive and lower unit applications. The lower unit of the outboard motor is otherwise referred to as the foot gear case or gear box. Its the bottom portion that houses the gear case and prop shaft that changes the direction that the propeller spins in.
To keep your outboard running its best and give it the longest life possible you must take care of the lower unit. I had very good luck with the rattle-can anitifouling paint on my Honda outboard. I just sanded the old antifouling paint once over lightly with some 80-grit paper and sprayed.
After the power wash in the fall the lower unit of the engine looked as good as or maybe even better than everything else below the water line. Learn how to prevent marine growth of slime and barnacles on outboard motor and sterndrive lower units with anti-fouling paint. Surface Preparation Is The Key To Anti-Fouling Paint Being Able to Work Its Magic.
Racing lower until are designed for the least drag. Big and rugged is a distinct disadvantage where speed is the major concern. Here is the HD gearcase used on the storm boat Motor.
And the gearcase for the racing 460. When the OMC V4 was designed in the mid 50s It was thought it would replace twin motors on a big heavy boat. Remove the outboard motor from your boat and place on your painting work surface.
Sand the entire outboard motor using 400-grit wet sandpaper. Sand the motor down to its bare metal surface. If you wish to protect any existing decals on the motor cover them first with Painters tape before sanding.
Spray Paint Color Charts. A new coat of paint can make a big difference in the way your motor looks whether youre doing a full restoration or just freshening things up. Check the model year chart below and the Evinrude and Johnson color samples at the bottom of the page for older motors.
Painting Outboard Parts. I have to admit that these engines get gunk all over them. Since I am trying to refurbish some pretty old motors I am going to repaint most parts that I can get to.
I have some parts already painted and it is a slow process especially if you want a quality paint job without paying a small fortune. Inboard Outboard Engine Paint How-Tos. The lower unit is where the gears are.
Thats what turns the prop its 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.