Cracked my lower unit. Need help please

Keegan.MW

Seaman Apprentice
Joined
May 16, 2013
Messages
36
Last night I was out fishing and hit the wrong log to say the least. It's toasted. I'm already in the process of finding a new lower unit but have some questions. My motor is a 1978 35hp Johnny shortshaft but does anyone know what the years that overlap and could work with my motor? For example I think I've heard that 76-78' were all compatible but I'm not sure on that. I could really use the help if anyone can tell me for sure. Also if anyone has one or knows someone with one for sale please point me in the right direction. I have cash in hand. Any and all help is appreciated!
 

Keegan.MW

Seaman Apprentice
Joined
May 16, 2013
Messages
36
Re: Cracked my lower unit. Need help please

Also are 25hp lowers from the same year compatible?
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Cracked my lower unit. Need help please

Go to shop.evinrude.com, look up your motor and start comparing part #' s with different years.
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,461
Re: Cracked my lower unit. Need help please

76 - 79 had the same LU. The 25hp from those years used totally different gearcases and midsections.
Looking at your pics, I would say the gears have some damaged teeth
 

phillnjack2

Ensign
Joined
Apr 30, 2011
Messages
918
Re: Cracked my lower unit. Need help please

get the gearbox welded up.
I have seen a lot worse than that repaired before.
I have a friend whose gearbox was smashed to bits due to ice, it cracked open and looked like never to be used again.
couldn't not find a good used one , then chap we knew said I will fix it.
we laughed but its still good and that was 9 years ago !!!!
I also had one welded that I got with an engine and never had any problems with it for 2 years while I had it.
and I did have the occasional wallop on the bottom with it as well.

its got to be worth a try to have it welded, or its total scrap !!!.

just a thought

phill
 

Keegan.MW

Seaman Apprentice
Joined
May 16, 2013
Messages
36
Re: Cracked my lower unit. Need help please

I found a new lower unit case from a friend nearby for $100. I'm swapping out the internals in my spare time. I'll let u guys know how it goes.
 
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