The Offshore Voyaging Reference Site

Dripless Shaft Seal Bellows Adjustor

Ever tried to get the bellows perfectly compressed to specification on a PYI dripless shaft seal, or similar, while at full-arm stretch in the bilge, and then get the little set-screws tight before the stainless steel rotor slips back?

Sucks, right? But if we don’t get this adjustment right think sunk boat.

Our friend Phil, he of the amazing salvage, made this gadget up for our friend Hans, he of the great in-boom furling tutorial.

Very simple, very clever, and easy for a machine shop to make.

And, after getting the bellows adjusted right, we could even take the jacking screws out and leave the tool clamped down against the rotor for added security against slippage.

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