1982 90 HP Evinrude Lower Unit Replacement

[bo32792]

I have an 1982 Evinrude 90 HP v4 that has a chunk missing from the lower unit casing where the prop shaft comes out (about 1'' by 3/4”). There is also a crack forming on the opposite side that is about 1' long. This hasn't effected the integrity of the seal/gear box yet. I am looking at lower units that are for sale. I was told by a shop that my o/b has a 20'' shaft. I'm not sure what lower units are interchangeable and would fit my o/b. Is it possible to use a lower unit with a 25” shaft and then swap my old shaft into the other lower unit?<br /><br />Thanks for any help that can be given.<br /><br />Bo

 

[DJ]

Re: 1982 90 HP Evinrude Lower Unit Replacement

There are allot more 20" units out there than 25" inch unts.<br /><br />But yes, you can swap the driveshafts. Doing so requires a complete L/U rebuild. So, why bother. Just find a direct swap.<br /><br />They are available here.<br /><br /> http://www.boatmotors.com/motorparts/

 

[rodbolt]

Re: 1982 90 HP Evinrude Lower Unit Replacement

I have a few of those units <br /> not much to them. make sure yours will come off. sometimes they stick in ther crank.