Progress on my '93 120 Evinrude-Coatings

Grits

Petty Officer 2nd Class
Joined
Nov 20, 2007
Messages
154
Hello Everyone!

I am in the short rows on my motor. It is down to bare metal and part if it is primed. The hard part, as I have already posted, was getting it apart without breaking anything other than a few bolts. The good news is I got all the broken bolts out and the motor is clean. I have the upper and lower cowling primed and ready to paint. I plan on priming the metal parts tomorrow.

FYI- I did come up with a primer combination for the cowlings and the metal parts. I took all the paint off the cowling. I did break through the filler in a few places and found fiberglass strands. I never found the epaulets for the sides of the cowling and I looked everywhere. I filled the holes, eight on each side, and plan on using decals for, I think a 2001 motor. They are a white "Evinrude" of the appropriate size. It took some doing to get the surface of the cowling level but I got it did. After filling and sanding, filling and sanding, filling and sanding, etc, I shot it with a polyester surfacer by Evercoat called Slick Sand. It builds well and is not bad to sand. You need to use a gun with a large tip. I used a 2.5mm on my Iwata primer gun and it did not just fly out.

The combination for the metal parts is as follows, one to two coats of epoxy primer. I have some made by Big Sky that I have had very good results with and the price is right. I will follow the epoxy with a Sherwin Williams industrial primer called Sprayfil. Sprayfil is a high build 2k urethane surfacer with excellent salt and chemical tolerance, designed to fill casting on heavy equipment and machine tools. The price is right on Sprayfil also, activator and primer for sixty bucks a gallon.

The rest is simple, I will use an epoxy sealer on everything followed by the PPG products recommended by Evinrude. The cowlings call for a base/clear and everything else is a single stage. All are 2K urethane.

I am trying to achieve that same or better quality as the original finish. There was a lot of filler in the aluminum parts. I was reluctant to use a polyester such as Feather Fil due to durability. I have had good luck with Feather Fil in the past but I feel more comfortable with the epoxy first followed by 2k urethane on the metal parts. I did fill the bad scratches on the foot and skag with Marine Tex. That way, I am following epoxy with epoxy and leaving polyester out of the mix, on metal. The Sprayfil will bond with the epoxy without sanding. It is recommended to let the epoxy flash off and follow with the 2K urethane primer-surfacer.

I am not sure this is the best or right way to go about this; however, I did a lot of homework and this is what I came up with. I wanted the cowlings to shine like a mirror and be reasonably tough with good UV protection. I wanted the coatings on the mid-section to have a good smooth finish and be as tough as I could reasonable get it.

I like to restore a little of everything and machine tools is one of my favorites. I will find plenty of uses for he left over undercoatings. Also, I am a farmer and I always have something that needs painting.

I do need some advise on decal installation but I will address it in another post.

Thank you all for your help in getting me to this point.

Grits
 
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