Reply To: PO-15 lower unit question

[NATHAN KILLIAN]

David Stanton wrote:

FYI Dave B. I have a PO-15. I was able to come up with a couple parts that I attached to the end of my grease gun so I could pump grease into the gearcase, as I was told not to use gear oil. I used water-resistant wheel bearing grease recommended for boat trailer wheel bearings. I was able to pump it in until it came out the vent.

Dave

i’m not an expert by any means, but you should probably not use wheel bearing grease.  its a bit too thick for use in gearcases to my knowledge, unless your motor has the world’s leakiest seal.  As somebody who has worked on  and examined some wheel bearings and plenty of outboard LUs, I can tell you that a wheel bearing does not need nearly as much circulation as a gearcase does when you consider how much grease actually is moved around by a wheel bearing.  the nice thing (I’ve heard) about corn Head is that it becomes more viscus when moved around, so it will allow for better circulation and better heat distribution and overall wear.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."