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Discussion Starter · #1 ·
I changed the oil in the lower unit on my 40 hp Johnson. I thought things went well. Now I have a small amount of oil leaking from the bottom screw. I have tried to tighten it with no luck. Is there an O ring or any other ideas? I did not strip it. But it's got me bothered. Thanks for any ideas.
 

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Like MadCatter said, you should have some kind of seal in there. A few cents at the boat store. If your "screw" is not a magnetic drain plug, replace it with one. Should be under $10.
 

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Discussion Starter · #6 ·
Great stuff guys. Thanks for the reply's!!! Hope to get to it this weekend or next. I will let you know how it goes.
 
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