I have an evinrude 9522 1965 evinrude 9.5hp I removed the lower unit, and changed the water pump impeller as well as an oil change. Now trying to put it back together I can get it within 5/8 of an inch. then it will not go back together any more no matter what, I cannot see anything hanging up. But I am sure I am missing something, just don't know what and by the way I am unimpressed with the selloc repair manual.....