Outdrive seal 12 hole

[Jeff1967]

Hello, I have a 1967 evinrude boat I/O 155hp. My outdrive to transom seal is leaking badly. Mine has 12 holes. All I can find is a 16 or 22 hole version. My question is can I use a 16 hole seal and just drill new holes in the transom? Amy help would be appreciated. Thanks! Jeff

 

[Scott Danforth]

I believe they are different sizes. Maybe @kenny nunez can chime in

 

[kenny nunez]

Your transom seal is the round one which is NLA so you will need the 313080 OMC # or 18-2767 Sierra. The 313081 support ring is NLA. You will have to fabricate one from some aluminum 1/8” X 3/4” flat stock. Also the stainless worm clamp is NLA so be careful not to over tighten it or you will be buying a lot of worm clamps and “Daisy chaining“ them together.
Sorry for the late answer I was out of town.

 

[Jeff1967]

Your transom seal is the round one which is NLA so you will need the 313080 OMC # or 18-2767 Sierra. The 313081 support ring is NLA. You will have to fabricate one from some aluminum 1/8” X 3/4” flat stock. Also the stainless worm clamp is NLA so be careful not to over tighten it or you will be buying a lot of worm clamps and “Daisy chaining“ them together.
Sorry for the late answer I was out of town.

Thank you so much for the info that helps alot! Jeff