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Packless Sealing System - opinions?

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GlennG View Drop Down
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Topic: Packless Sealing System - opinions?
    Posted: 21 Jan 2012 at 2:15pm
I'm fed up with problems with leaking stern glands,  annual topping up of grease,  etc.  So I'm thinking of replacing the traditional packing gland with a Packless Sealing System (http://www.shaftseal.com).

Has anyone fitted one of these?  Opinions?

Will it fit?



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moongirl View Drop Down
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2012 at 9:27pm
Looks like you have an Aquadrive. Polar Star had a Deep Sea seal with no lube and that worked just fine. There is a Company who specialize in this type of thing but cannot remember their name - will research & post again
COLIN
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 2012 at 9:34pm
Just remembered Lake Engineering sell the PSS system which requires no lubrication. The system works well.
COLIN
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GlennG View Drop Down
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2012 at 7:34am
Looks like I know what I'll be doing in April:-)  That and replacing the cutlass bearing again -- it's got a couple of MM of play after only a couple of years.
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moongirl View Drop Down
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 2012 at 10:29am
Looks like you have avery small miss-alignment in the prop shaft. I guess there is not too much you can do about that given the very short distance between the Aquadrive and the stern tube!
The PSS seal will cope with a small 'wobble' as it is an annulus held in rubber.  
COLIN
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nardus View Drop Down
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Post Options Post Options   Quote nardus Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jan 2012 at 6:59am
Quintessens has an Manecraft seal. Works fine, zero maintenance. It`s got emergency seal when the main seal is failing.   http://www.tnorrismarine.co.uk/manecraft.php
The shaft has to be perfecty aligned when installing ..
Ben H
Contessa 32 "Quintessens"
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GlennG View Drop Down
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jan 2012 at 9:32pm
Reading this it talks about the need to be "water fed".  I noticed the same on the PSS seal - there's the spigot.

How does this work on a Contessa?  (The engine's a raw water cooled Yanmar 2GM20)
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GlennG View Drop Down
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jan 2012 at 9:40pm
For completeness,  here's a picture of the Aquadrive & gearbox.  Looks as if the engine has sagged a little on its mounts as there's a gnats tadger of misalignment.

I think that I'll look at loosening up everything to make sure the cutlass bearing's better aligned.



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moongirl View Drop Down
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Post Options Post Options   Quote moongirl Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jan 2012 at 8:12am
Sounds like new rear mounts might be a good idea! PSS seals come in 2 types, one with water inlet for high speed/planing boats and one without. The normal seal for a Contessa uses the water inside for lubricatiion.
COLIN
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Alan Dixon View Drop Down
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Post Options Post Options   Quote Alan Dixon Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jan 2012 at 9:45am
When I re engined Charlotte Feb 05 I fitted a deep sea seal ( T. Norris www.tnorrismarine.co.uk) along with a conventional cutlass bearing 1 1/4" to 1" shaft. The deep sea seal requires a water feed for lubrication / cooling,  the water then passes down the prop tube and lubricated the cutlass. This works well no leaks the installation is now 7 years old and over 1000 hour without any maintenance. 
Alan Dixon "Charlotte"
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