EP 16: Sailboat Restoration: Not all Shaft Seals are created equal! Tides Marine, Glides Marine, PYI

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I never really worried too much about the shaft seal until I realized I had a PYI Dripless Shaft Seal on Reverie, our 1985 Pearson 34 sailboat. I was cleaning behind the engine and I bumped it and water came in. At first I was concerned, but it sealed right away on its own. So decided to learn more about it.

This video shares what I learned. It also has a presentation by Pablo Soto of General Propeller where he explains the difference between the Tides Marine shaft seals, the Glide Bearing Shaft Seals, the PYI Shaft Seals. I then explained the rationale for our selection of a shaft seal for Reverie.

There are things you should consider such as the location of your stern tube, the outer diameter of your stern tube, the diameter of your shaft and the distance between your shaft coupler and the edge of the stern tube. As this will help you figure out which shaft seal will work best for you.

Links to additional information included below.

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Here is the timeline for those who may be short on time:

00:00 Introduction (See what my old PSS shaft seal looked like)
00:40 Overview of 4 Types of Shaft Seals
02:08 Our visit to General Propeller and presentation by Pablo Soto
03:11 Pablo explains the Packing Gland
04:12 Pablo explains the PYI - Packless Sealing System (PSS)
05:53 Pablo explains the Tides Marine - Sure Seal
08:40 Pablo explains the Glides - Marine Sealed System
10:04 How did the space and conditions in Reverie affected our selection process, why would something would work and why not and out final selection and a few more details about each option
15:34 Thank you to Pablo Soto & Conclusion

Links:
General Propeller: https://www.generalpropeller.com/
PYI: https://www.pyiinc.com/
Tides Marine: https://www.tidesmarine.com/
Glide Bearings & Seal Systems: https://www.glidebearings.com/

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