Thread: propshaft seals
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Old 05-07-2008
jjns jjns is offline
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propshaft seals

Hi everyone.
I have been thru the site and read as much as I can regarding PSS seals.
I have an issue that I am hoping someone will be able to weigh in on.
Our boat (Ticon 30) was equipped with a lasdrop dripless seal that did not live up to it's name( To be fair, it is likely a 1st gen seal(black bellows). Retensioning the bellows helped a little, but not much. Was tempted to go back to SB, but was afraid of what I would find on the shaft, as expected, the shaft is damaged where the SB was.
Bought the PYI seal, good call on my part, much beefier assembly with 2 o-rings to seal the shaft instead of 1.
The boat is currently on it's cradle. The instructions say to center the shaft, install and launch.
Everything I have read says the you should not adjust until the boat is in the water.
I cannot see how I would do this without sinking.

As it sits now, (bellows off) shaft slid into coupling and coupling slid against trans. Shaft is off center (towards port) by a maybe 1/16th inch, as seen inside the boat. At the flange it looks like a few thousandths (forgot the feeler gauge at home)
To complicate matters the boat yard has moved the boat(while apart) and it is no longer sitting in the cradle correctly,rear starboard pad has oil canned the hull, having it sorted out today, I hope.
The deflection coincides with the mis-alignment in that the wide part of the gap is to port.

So, do I assemble and hope for the best?
Do I adjust it and hope for the best?
Would a deflected hull (3ft away) affect the shaft log position?

Unfortunately the flange was seized so I do not know if it was close when it came apart.
Additionally, whoever installed it last time, used a whole bottle of thread sealant all over the flange bolts, nearly impossible to remove (red and smelled like locktite) is this standard protocol. the flange bolts are socket head capscrews and not wire-able, I could see maybe 1 drop of blue to make sure they don't back out, but am leaning towards never-seize on the shaft, as I do not like using the trans flange/shaft nut as press.
What is the right way to put this all together?
Thanks
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