Shaft Seal Failure - What do you do? - Page 3 - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #21  
Old 01-30-2009
erps's Avatar
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Quote:
Also, after the shaft seal is installed in the proper position I use a black permanent magic-marker to note the point where the aft end of rubber bellows joins the stern tube and the forward edge of SS seal ring is positioned on the shaft. A quick look at the shaft seal is part of my daily engine maintenance routine and with these marks I can quickly see if either the rubber bellows or the SS seal ring has moved.
Excellent idea. I think the bellows are supposed to be replaced periodically too.
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  #22  
Old 01-30-2009
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Right you are Erps, I replaced the PSS seal and bellows this year during the refit and they told me every 8 years or so. I figure I'll do it every 4 years, pres. election makes it easy to remember, that's when I have the septic tank pumped too . I like the idea of the two piece collar Maine, thanks.
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  #23  
Old 01-30-2009
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interesting thread. when i burped my previous dripless shaft seal i was surprised how much water came in. i dont know if my bilge pump could have kept up with that rate.

a related request for opinions on what you could do if the rubber seals/gaskets on a saildrive failed (apart from heading very quickly to the nearest haul out) - assuming for argument's sake the alarm between the diaphragms didnt go off or it was due, however unlikely, to the saildrive striking bottom. i cant think of anything obvious that would help, but perhaps i dont know my ass from a hole in the hull.
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Old 01-31-2009
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Tell me if this is a silly idea.Cut a section of motorcycle tube long enough to go from the shaft outlet tube to the shaft.Clamp the end at the outlet then roll up the excess to be used in an emergency(tape it back so it can't get caught in rotating shaft).If you have a bad leak just roll it out and clamp to shaft.Will Try it on my boat this summer.
My stuffing box nut came loose once and I was suprised how much water came in!

Phil
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Old 01-31-2009
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Hi this is the first ting i have in my spare parts box on board new gland packing.like other said water Will be manageable
you can replace this in the water
my prop shaft run has a seal at the exit after the main back bearing
Prepare gland stuffing and replace it fast with pump running you Will be able to do this and this problem will be fix
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