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locked up outboard moyor

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I have a 25hp mariner that someone gave me. The problem is it went under water during hurricane Isaac & is locked up. He said he didn't have time to mess with it & just put it up. I was wondering if someone can give me tips on freeing up the motor & if I get it free, will it be fine without tearing motor down & changing parts?
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Re: locked up outboard moyor
I'd say you could probably put some Marvel Mystery oil or Krol in the cylinders to free them up. But almost certain the bearings are gonna need to be replaced.
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Re: locked up outboard moyor
I agree with tboy, but try it u never know??? also automatic transmission oil is great for rust and freeing up stuff too!!!
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Re: locked up outboard moyor
Its prolly shot due to the fact its never been pickled. After Katrina alot of guys got a 55gal drum cut it in half and put the engine in powerhead down then covered the powerhead with diesel and just let it soak. Take the plugs out first.
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