need some advice lower unit oil found metal particles

betayv

Senior Chief Petty Officer
Joined
May 13, 2008
Messages
706
hi there my boat is a 1979 mercruiser with a alpha one outdrive, I change my water pump impeller and base on my lower unit and when I drain the oil out of the lower unit I see a lot of metal particles on the oil, I change the oil put everything back and run the engine, drain the oil again out of the lower unit and again was full of little metal particles what this means? what can I do thanks.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: need some advice lower unit oil found metal particles

Dissassemble the drive, and inspect the parts. Gears, bearings, shafts, everything.
You will see where the problem is.
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: need some advice lower unit oil found metal particles

Dissassemble the drive, and inspect the parts. Gears, bearings, shafts, everything.
You will see where the problem is.

The best advice you will get!

A little bit of metal dust on the drain plug magnet is normal but what you describe is a sign of really bad things to come if you keep running it.
 
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