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The one downfall of the PSS seal is the fact that if you disturb the engine/tranny position you open the seal.
We pulled the engine on our boat with a PSS seal, and of course once the compression of the bellows tube was released the seal wanted to leak a lot. We got around it by securely taping the shaft collar to the stern-tube half with water resistant tape.
You really can't remove the seal without decpoupling the shaft, and you can't pull the shaft without removing the seal, neither is an in-the-water job.
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".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345
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