Reply To: Evinrude Speedifour model 7033

[PM T2]

Lower units from an earlier motor will work, but you’d best be sticking with the style that was sold on the 39-41 motors like the one you have. Chances are pretty good that there is a parts motor out there somewhere with a decent usable foot on it.

Most of your parts are footched, but I’ve seen worse (and fixed it)

The prop shaft is not a difficult piece to machine if you have access to a lathe, or have a buddy who does and would make you one in exchange for a case of beer.

There is a long bushing that supports the driveshaft just below the water pump; if the rest of your lower unit looks that bad, that bushing has to go as well.

The bronze carrier near the front end of the prop shaft in the photos can be bored out and rebushed to get it back to original size. Ditto for the rear cover; that bearing can be pressed out and replaced. But don’t try to use Oilite bushings. Bearings machined out of SAE 660 bronze are preferable.

Gears are going to be a pain, especially the one with the internal spline, and for that reason most folks would classify this gearfoot as scrap and try to find a complete replacement.

Anyway, good luck in your search.

Hope this helps.
Best,
PM T2

He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...