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folke2000

Lower unit noise

4 posts in this topic

Maybe someone can help my brother in law diagnose the problem? He states that his boat was making a bit of a whirring noise when in gear and under power. Further investigation revealed the lower unit was quite low on oil and it was ugly black. A few metal shavings were picked out of the drained oil too. I was thinking maybe lower unit bearing? Any ideas or suggestions?

Thanks for any help....

Folke

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Only a disassembly will tell for sure, but I'm thinkin' you will find the gear teeth are chewed up as well as burned bearings. Black nasty burned oil is not a good thing.

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Now the big question....Is this something that the average guy can tackle or are there special tools etc needed? To be clear, this is a late model Evinrude 40 h.p.

Thanks everyone for the advise.

Folke

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