I use Lubriplate 105 in the lower units of my outboards (older model Johnsons). Are there any synthetic alternate lubricants available that I might consider?
Lower Unit Lubrication
- Thread starter Repecat
- Start date
- Status
I have owned a couple of outboards but none of them ever used grease in thier lower unit. If I'm not mistaken Lubriplate 105 is a NLGI 0 calicum based grease. This grease is not really intended for gears. I have always use syn 80W90 Pennsoil from Wal-mart thaat has a GL-5 rating.
Amsoil makes an 80W90 synthetic
As I previously stated, 80w90 is much too thin for my use. It would quickly run out past the seals, some of which are cork. Thanks anyway.
The 80W90 lube is much too thin for my outboards. My newest motor is a 1947 2.5 BHP unit and the oldest is a 1925 2 BHP kicker. I'm just looking for ideas for a different (maybe synthetic) lubricant. Thanks for the post.
I'm sorry about not understanding (older model Johnson). When you said older model, you meant what Noah used on the Ark. I have looked through my books and it is hard to find a SYN grease for your application (GEARS). The grease you are using now is designed for bearings and slides. (Lightly loaded. What ever you choose, make sure it is compatible with the calicum thickener you are using now, or do a complete flush of your housing. Calicum is not compatable with most other thickners. That is outstanding you have these old of motors and still running.
dittoquote:
Originally posted by Johnny:
Bob, it's good to see you posting on the site. Hope all is going well for you.
the thickner is what you want to look at for water proof. I'm not sure but I think cal thickner is close to water proof. I know alum complexe is and is compatible with cal.
http://www.bobistheoilguy.com/images/greasechart.jpg is the chart for compatility.
as for 80w90, I ran a test and here is what I found.
http://www.bobistheoilguy.com/images/nailrusttest2.jpg
http://www.bobistheoilguy.com/images/g1climb.jpg
i've looked inside a lower drive unit and saw how this would affect the units.
http://www.bobistheoilguy.com/images/greasechart.jpg is the chart for compatility.
as for 80w90, I ran a test and here is what I found.
http://www.bobistheoilguy.com/images/nailrusttest2.jpg
http://www.bobistheoilguy.com/images/g1climb.jpg
i've looked inside a lower drive unit and saw how this would affect the units.
- Status
