Re: 18 HP 63' Evinrude Fastwin LU help!!
You'll need a "seal puller" to remove those seals properly. You can get one cheaply at harbor freight tools, or autozone, or other such places for about $10. Be careful when using it, and patiently go around the seal with it, or you may break the recess edges that the seal sits in. I can't really tell what damage you speak of on the propshaft seal carrier. If the brass bushing inside has no jagged edges and there's enough material to hold the seal in place, reuse it. If not, find one on ebay or laingsoutboards.com. You can get a whole new used and pressure tested lower unit there for only about $300, and I'm sure they'd sell you the part you need for a reasonable price.
You can use a 5/16" tap to tap the bronze shift shaft bushing only about 3 threads deep, screw in a 5/16 bolt and tap the shift shaft bushing out from the back side. You'll need to replace the shift shaft o-ring almost for sure. You can get the correct tool cheaply for removing the shift shaft seal bushing if you know where to look, but the aforementioned method will work, it's just not the best way to do it.
Hope this helps,
JBJ
