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Shaft Seal Maintenance - Step 1

Story and photography by Capt. Vincent Daniello

A Dripless Shaft SealWith lip-seal-type shaft seals like this one, a Tides Marine (www.tidesmarine.com) PSS SureSeal unit, a thin rubber stationary edge inside the seal rides around the rotating propeller shaft. The housing simply holds the rubber seal precisely against the shaft. When a lip seal begins to leak, replace it. Required tools are pretty basic, with one caveat: Large screws in the face cap require a #3 Phillips screwdriver—use a #2 Phillips and you’ll eventually strip the unit’s face-cap screws.