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Lower unit fluid change-

Posted: February 6th, 2010, 9:50 pm
by Redfin
Changed lower unit oil today. The lower magnetic plug had a very small amount of tiny metal bits on it. Almost not visible so small, but defiantly there. (total metal was less than a grain of rice????)
Is that normal to have a little bit? Also is it normal for the old fluid to be black from usage?

I also did the motor oil change, a 150 Yamaha 4-Stroke. How the hell do you all drain he old oil? I used a hand pump[ fluid extractor from Harbor Freight- not very efficient-
I will be ordering this- http://www.simyamaha.com/Mityvac_p/mv-07400.htm

Re: Lower unit fluid change-

Posted: February 7th, 2010, 9:26 am
by Jumptrout51

Re: Lower unit fluid change-

Posted: February 7th, 2010, 10:11 am
by carramar
Redfin, What you describe about your lower unit is normal.If your LU oil is real black you may want to change it a little more often! There is a drain plug for the engine oil sump inside the short black hose that comes out the back of the mid section. Then just use the wiki.answers method.

Re: Lower unit fluid change-

Posted: February 7th, 2010, 11:19 am
by Redfin
Thnx Carramar