Home › Forum › Ask A Member › Top shaft seal leaking of 1967 18hp Evinrude › Reply To: Top shaft seal leaking of 1967 18hp Evinrude
If what you say is, in fact, true, then yeah, you would have to take the block apart. I would be surprised though, because unlike some earlier engines, that one should have an o-ring seal between the block and the bearing. However, anything is possible, especially if the power head has been apart before. I suppose you could always just replace the seal and see where that gets you. If you have to take the block apart after that, at least your seal replacement is already done. I might as well bring this up now, while we are talking about leaks in this area: I have seen more than one 18 crank shaft with pits in the seal area, making it incapable of being able to hold a seal….
Long live American manufacturing!