Boat motor repair?

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JBARCHER

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East, TN
I have an outboard motor with a small crack in the lower unit. Anyone able to repair this or think it can be welded? or do you think I'll need a new lower unit? I'm in Sweetwater, TN
 
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Did you catch it before the lower unit got filled with water? If not it may not be worth fixing. The crack is easy and the least of your problems IMO
 
Still seems to go in and out of gear just fine, so i'm assuming lower unit is fine (you know what assuming will get you). I'm told it's caused by fishing line getting behind the prop to the seal and cutting it up. Allowing water to get in the lower unit, overtime enough water and cold weather swells and freezes the water causing it to crack. Correct me if I'm wrong! Any thought or ideas?
 
This could go a lot of different ways...

First off it swelled enough to crack the lower unit then it for sure swelled enough to damage seals... Which were already damaged enough to let the water in. Then you have rust on the bearings. Then you have potential movement or swelling of bearing seats due to swelling and cracking. There are some very tight tolerances at risk in that unit. What I'm trying to say is: you may be able to weld the crack, change the oil, and ride to town. It may last 10 years, it may last 10 days, it may last 10 minutes. What you don't want to get into is welding the crack, changing the seals, changing the oil, replacing rusted bearings, etc to the tune of being more expensive than a lower unit. Also... I have never had one break at a convenient time.
 
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Urban_Hunter":3eudiyzm said:
This could go a lot of different ways...

First off it swelled enough to crack the lower unit then it for sure swelled enough to damage seals... Which were already damaged enough to let the water in. Then you have rust on the bearings. Then you have potential movement or swelling of bearing seats due to swelling and cracking. There are some very tight tolerances at risk in that unit. What I'm trying to say is: you may be able to weld the crack, change the oil, and ride to town. It may last 10 years, it may last 10 days, it may last 10 minutes. What you don't want to get into is welding the crack, changing the seals, changing the oil, replacing rusted bearings, etc to the tune of being more expensive than a lower unit. Also... I have never had one break at a convenient time.
Click to expand...

That's what I was trying to say
 

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