Overheated Blue Water Shaft Seal

In principle, overheating can damage all dripless seals, potentially to the point of needing to replace/refurbish them.
But among the two broad categories, i.e. face seals and lip seals, with the latter also the shaft is more likely to suffer.

Now, I'm also not familiar with this Blue Water thing, but from your photo I would think it's a lip seal.
Bottom line, in your boots I'd like to have it inspected by someone who knows it inside out.
Which might require a liftout, I suspect.

I have learned more about these Blue Water seals. Seems you can not place a spare seal on the shaft. I fear, once an issue, the shaft has to be drawn and new seal installed.
The real sad news, You will not know of any shaft damage until the shaft area is exposed.
BUT, changing the log hose length, quickly fixes this issue IF any damage has accrued.

On other threads on YF, some members take this first failure as the time to install a more serviceable lip seal system with service spare seals already on the shaft.
This is something to think about, real hard thought if operating in shallow or silty water.

Glad your home safe. Glad this was your only issues.
Keep us up on your decisions on this and any other work on your new ship.

I was hoping to design a serviceable cover plate by now, just have not got to it.
Anybody want to give it a try. Our Bert has required some un-expected work. Freaking fresh water....

CR, do you mean because they are actually face seals, which by definition can't be fitted with a spare, or are they lip seals but for some reason it's impossible to leave a spare or two on the shaft, ready for replacement also in the water, as for instance in Tides Marine lip seals?
Just curious to know if my guess about them being lip seals was right...

Good picture in this thread;
https://www.yachtforums.com/threads/shaft-seals-and-cutlass-bearing-life-expectancy.31248/

Post #10 from CSkipR.
It looks like a regular shaft gland that would have flax or Gortex compressed in it.
But that plate just holds a seal and bushing.

Thanks CR, I must have missed that thread altogether.
A lip seal it definitely is.
In the OP boots I'd want to have both the seal and the shaft inspected, and at least the sealing bits replaced.
Which can't be done with the boat in the water, I'm afraid...

I have those same shaft brushes. Curious what the benefit of doubling the bonding wires is to each of them?

Daisy Chained. The cables split Y out of sight.

Great choice, you won't regret it.
Out of curiosity, are you possibly aware of the price difference between the pro and non-pro versions?
I like the additional clamp of the pro in principle, but actually I never heard of problems also with the non-pro version without it.

PS: excellent cleaning job, gotta love an immaculate bilge!

I got a note on this last week.
Seems that first version stainless collar has slid up the shaft a few times. Some boats got wet.

So, the new pro kit includes that locking mini collar.
Also, installation and service kits now include set screws that will bite into the shaft and a tube of LocTite.