I have to sell my 2010 electric start mercury 4 stroke 20hp with 15 hours on it and the fact that it stool still in the garage my prop shaft seal started to leak, since i'm already giving it at 2200.00 I would like to make the repair myself, has anybody have a picture of the repair from a book since i'm not going to buy the repair book for the reason mentioned.

Would be grateful for your gesture.