So when corn head grease does get water in it and emulsifies, what do you guys do then? Try to flush out what you can, with more grease? Totally disassemble the lower unit and clean it out? Pray a lot? I’m just wondering, as trying to perfectly reseal old Mercury gear cases gets old, fast.
You simply remove the vent and fill plug,
let the water drain out, and replace what is
missing. The grease and water don’t mix.
In this video are 2 examples. When the cover is
removed the water runs out while the remaining
grease is coating the metal surfaces. The first
example was right out of the lake so the water
wouldn’t have a chance to settle out. Notice the
difference in consistency of the grease in the
first example compared to the second. That is
the result of the first example coming right out
of low to mid 70 degree water and the other
being sitting for a few days giving it a chance
to warm up. I have tried the 00 grease 3 times.
The first 2 times the shaft/ bushing clearances
weren’t in good condition for it to stay there.
The 3rd time the shaft/ bushing clearances were
too good as after running the motor at least
once a day for 4 weeks I never did get any
water in the gear case. The 00 grease was
always fluid – Second video.
No mater what I’m using for a gear case
lubricant it gets removed when I’m done
using the motor for that season and it is
replaced with fresh.
Tubs.
https://youtu.be/dAu2-zYmgGc
https://youtu.be/ba7KzKjPGrg
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.