http://www.marineengine.com/boat-for...erndrive-Forum
is another great informational site like this one. There a few guys that belong here on Wellcraftv20 belong on the marine Engine forum. Just find the forum with your engine and search a subject.... lot of info!!!
lower unit upper video
http://www.sterndrive.info/alpha-one...ing_lower.html
Lower unit Diagram
http://www.sterndrive.info/alpha-one/id305.html
But I am sure somebody on here can send you a diagram..
also to be a great idea to buy a repair book