[PSUBS-MAILIST] Minn Kota 101 parts

[Alan via Personal_Submersibles]

Jon,
I  read in a de-classified publication, " Rotary shaft seal selection handbook
for pressure equalised deep ocean equipment", that a sacrificial seal is 
sometimes used in underwater applications.
This seal will see the salt water & crut that is forced passed it by the propeller,
& wear first.
Alan




> On 15/08/2018, at 1:57 AM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
> 
> FYI, I ordered new seals and a brass bushing direct from Minn Kota which turned out to be the best pricing for the items that I could find on the Internet.
> 
> A while back we had a discussion about the two seals on Minn Kota's...are both necessary, what about the space between them and pressure considerations, etc, etc, etc.  In my case, I considered installing just one seal but chickened out and installed both.  I'm convinced the purpose of two seals is simply to back each other up in case one fails.  I had lost the cardboard spacer that separates the two seals, so after installing the first one I packed the void within it (it's a lip seal) with grease and then just pushed the second one directly beside the first with no spacer.  
> 
> The seals are numbered 21 in the attached diagram.
> 
> Jon
> <101seals.JPG>
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