While Corn Head Grease (top picture) may
liquefy in the video, that’s not the case when
its in a gear case that is being water cooled.
These pictures are straight out of the lake.
The benefit of using Corn Head Grease,
Cotton Picker Spindle Grease, or Lubriplate
105 (bottom picture), is that even though water
has entered the gear case it doesn’t mix with
or reduce the grease. Even though there was
only 5% or less grease remaining in the gear case
(bottom picture) what did remain was clinging
to the gears. I believe that would be the same
for the shafts and bushings.
If I could put seals in my early motors and
keep out the water, I would use gear oil in them.
I only have 5 direct drive motors with seals, but
if for any reason I couldn’t keep the water out, I
would use one of the greases above as I feel
they would provide better lubrication than
watered down gear oil.
Just another guy on the internet –
use your best judgment.
Tubs
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.