Re: can't find any motor diagrams for my elto 12E15D i think 1957 12 hp
Send me a PM with your e-mail address if you want a parts book emailed to you (free). Your motor was made by OMC's Gale division. They made a bunch of brand named motors, Elto being one of them. The differences were the cowlings and paint. I actually don't have the Elto cowlings book, but everything else is good.
12 = 12 horsepower
E = Elto
15 = Designates the model year, but by no secret code. You gotta have the book to reference it.
D = "Deluxe" S = "Standard"
Don't try to make it so complicated.