Shat Seals - Deap Sea Seals

[TonyMills]

Hi

I've just pulled the old girl out and intend to change the shaft seal. Currently it is a simple rubber flange which fits over the stern tube (tightened with a jubilee clip) and over the shaft, slight pressure fit. This setup does not leak (much) underway but leaks like a sieve when stationary, to the extent that I need to tighten a jubilee clip over the shaft to keep her afloat.

I am looking at fitting a new seal which is called a 'Deep Sea Seal' (DSS). They are expensive but I understand they work well. Does anyone have any experience of them and are they likely to solve my problem?

Regards
TonyMills

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[ccscott49]

They aren't cheap, but a good system. it sounds like your system, is worn and may well just need replacing, if I remember correctly, it should only have a jubilee at the ouboard end, the seal should be tight enough on the shaft without one on the other end, Filled with grease, these also last a long time, I'd check that out first, before laying out a load of dosh.

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[john_morris_uk]

I have used Deep sea Seals on various boats over the years and have had very few problems. When I replaced my shaft last year I fitted a similar seal (not exactly the same brand but the same principle) as a deep sea seal and it has worked exactly as advertised. Sorry I can't remember its name and the instructions are on boat, but I got it from Yachtparts of Plymouth so you could always ask them (and it was considerably cheaper than the 'Deep Sea Seal'. PM me if you want me to look up its name when I am down the boat again.

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[Blue_Blazes]

Interesting mis-spell but entirely appropriate in my opinion. I had my boat sunk by the failure of one of these seals. look back a bit on the Motor Boat Chat forum for details. I would most certainly never trust them again.

Bill

<hr width=100% size=1>One of these days I'll have a boat that WORKS

 

[dickh]

It sounds like you have a Volvo Penta seal which should be fairly easy to renew, but it does have to be filled with the correct grease and 'Burped' when put back in the water after layup.
I investigated new shaft seals a while ago. I prefer the PSS seal which I feel is better engineered than the Deep Sea Seal, but it is more expensive. Check carefully the space available, I can only (just) fit a Deep Sea Seal, and will probably upgrade to this next year. I know there have been failures with the DSS but understand that it has been modified.

<hr width=100% size=1>dickh
I'd rather be sailing... /forums/images/icons/smile.gif