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It is time to do something to the stuffing box. The yard suggested that I replace with a dripless shaft seal. No more worry about the age of the shaft log and no water in the bilge. Has anyone had any experience with these. I feel like in an old post someone said they had one installed.
Linus
Sumocean -
Have had one for 9 years. Life is good.
AlanSent from my iPhone
On Jul 8, 2013, at 5:59 PM, “sumocean” wrote:
It is time to do something to the stuffing box. The yard suggested that I replace with a dripless shaft seal. No more worry about the age of the shaft log and no water in the bilge. Has anyone had any experience with these. I feel like in an old post someone said they had one installed.
Linus
Sumocean_______________________________________________
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I have had one in Whiffler for 10+ years without issue. A colleague of mine put one on a Pearson 53 and had to replace it with a std shaft seal while at anchor in Mexico after 3 weeks (obviously put in incorrectly or a defective part).
Steve
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I am of the very humble opinion that old school is the best school. I’ve
seen dripless packing fail and fail spectacularly. What’s more, when they
do you have to remove the shaft to fix them. If your packing goes in an
old school box, you just replace the cheap packing. In an emergency you
can stuff shredded t-shirt in there to minimize water intake.Simple is better. If you remove your shaft to replace the hose, purchase
one of the silicone rubber hoses available for certain at Sailorman in Ft.
Lauderdale.Bob
On Mon, Jul 8, 2013 at 6:10 PM, Steven Weinberg, Ph.D. wrote:
Quote:I have had one in Whiffler for 10+ years without issue. A colleague of
mine put one on a Pearson 53 and had to replace it with a std shaft seal
while at anchor in Mexico after 3 weeks (obviously put in incorrectly or a
defective part).Steve
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I also have one…works but so did the old system. My thoughts were of having a dry, dusty bilge….but that didn’t happen ( water always find a way in)
Not worth the money.
On Jul 8, 2013, at 6:12 PM, Robert Fine wrote:
Quote:I am of the very humble opinion that old school is the best school. I’ve
seen dripless packing fail and fail spectacularly. What’s more, when they
do you have to remove the shaft to fix them. If your packing goes in an
old school box, you just replace the cheap packing. In an emergency you
can stuff shredded t-shirt in there to minimize water intake.Simple is better. If you remove your shaft to replace the hose, purchase
one of the silicone rubber hoses available for certain at Sailorman in Ft.
Lauderdale.Bob
On Mon, Jul 8, 2013 at 6:10 PM, Steven Weinberg, Ph.D. wrote:
Quote:I have had one in Whiffler for 10+ years without issue. A colleague of
mine put one on a Pearson 53 and had to replace it with a std shaft seal
while at anchor in Mexico after 3 weeks (obviously put in incorrectly or a
defective part).Steve
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Another vote for the PSS. Had one on my last boat – 30k n miles without a
hitch – and now on Silverheels these past 6 years with no problems. Nice
when something just works.Tor
Silverheels, P-424 #17
http://www.silverheels.us
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We have had a Lasdrop shaft seal for about a decade with good service. A couple things to consider.
The seal depends on a carbon ring on the corrugated hose pressing on a stainless ring on the shaft. It will leak a little, necessary to cool and lubricate the seal. When launching, it is necessary to burp any air trapped in the hose to wet the seal and prevent overheating.
The stainless ring seals to the shaft with O-rings. If the shaft is worn or scored where the O-rings seat, you might need a new shaft.
Said ring is held in place with setscrews. It’s best to back this up with a hose clamp or a shaft zinc.
If it was a do over, I might go with a traditional stuffing box and more high tech stuffing, at least Teflon stuff.
Quent -
I used to use the graphite impregnated packing – it ran cool, dry and
forever. Well, years anyway. Then big news! Graphite promotes galvanic
corrosion! Don’t use it! You’ll die! The world will end! You will get
various diseases! You must use the teflon impregnated packing.Long and short of it: Graphite is still good. Runs cool. Doesn’t creep
like teflon. And apparently the whole galvanic corrosion thing is a
non-issue.Bob
On Mon, Jul 8, 2013 at 6:43 PM, quent wrote:
We have had a Lasdrop shaft seal for about a decade with good service. A
couple things to consider.
The seal depends on a carbon ring on the corrugated hose pressing on a
stainless ring on the shaft. It will leak a little, necessary to cool and
lubricate the seal. When launching, it is necessary to burp any air
trapped in the hose to wet the seal and prevent overheating.
The stainless ring seals to the shaft with O-rings. If the shaft is worn
or scored where the O-rings seat, you might need a new shaft.
Said ring is held in place with setscrews. It’s best to back this up with
a hose clamp or a shaft zinc.
If it was a do over, I might go with a traditional stuffing box and more
high tech stuffing, at least Teflon stuff.
Quent_______________________________________________
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Bob Fine
s/v Pelican
Pearson 424 Hull #8
http://thesailinglife.blogspot.com
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I installed a Tides Marine Sure Seal in Eclipse 3 years ago. No problems so
far.
https://www.tidesmarine.com/
Evan Starzinger has it on his list of top equipment on the boat…
http://www.bethandevans.com/equipment.htmHad a PSS on a previous boat… no problem with that either.
Rick
EclipseOn Mon, Jul 8, 2013 at 5:59 PM, sumocean wrote:
It is time to do something to the stuffing box. The yard suggested that I
replace with a dripless shaft seal. No more worry about the age of the
shaft log and no water in the bilge. Has anyone had any experience with
these. I feel like in an old post someone said they had one installed.Linus
Sumocean_______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
_______________________________________________
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New generation of Lasdrop does not depend on the corrugated hose but
instead on a spring loaded assembly. I added one of these new ones
during our refit. Earlier generation of this with corrugated hose on
our boat worked very well.Pete
On 7/8/2013 4:43 PM, quent wrote:
We have had a Lasdrop shaft seal for about a decade with good service. A couple things to consider.
The seal depends on a carbon ring on the corrugated hose pressing on a stainless ring on the shaft. It will leak a little, necessary to cool and lubricate the seal. When launching, it is necessary to burp any air trapped in the hose to wet the seal and prevent overheating.
The stainless ring seals to the shaft with O-rings. If the shaft is worn or scored where the O-rings seat, you might need a new shaft.
Said ring is held in place with setscrews. It’s best to back this up with a hose clamp or a shaft zinc.
If it was a do over, I might go with a traditional stuffing box and more high tech stuffing, at least Teflon stuff.
Quent_______________________________________________
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At present I don’t know anything about these drip less shaft seals (with springs too?) but I do know without a doubt that as Bob and Indulgence hint at, that the old stuffing boxes have been working OK for a long. long time. Simple machined bronze to bronze, unbreakable really, with an inexpensive, easily replaced waxy stuffing that if you actually do regular maintenance tightening will keep your bilge dry. Guess I’ll have to study the advantages or not of the PYI drip-less shaft seal that’s installed on my soon to be floating home.
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Pete,
I installed a PSS shaft seal on Sarah in 2001. No problems in the last 12
years. I replaced the standard stuffing box because I had a constant leak
of water into the bilge. It looked like it was coming from the stuffing
box. Turns out the leak was from the stuffing box on the rudder post.
I’m satisfied with the PSS seal, but probably would be just as satisfied
with the stuffing box.Regards,
John Stevenson
http://www.svsarah.comOn Mon, Jul 8, 2013 at 9:39 PM, Page Two wrote:
At present I don’t know anything about these drip less shaft seals (with
springs too?) but I do know without a doubt that as Bob and Indulgence hint
at, that the old stuffing boxes have been working OK for a long. long time.
Simple machined bronze to bronze, unbreakable really, with an inexpensive,
easily replaced waxy stuffing that if you actually do regular maintenance
tightening will keep your bilge dry. Guess I’ll have to study the
advantages or not of the PYI drip-less shaft seal that’s installed on my
soon to be floating home.
Writing a New Chapter Page by Page in an Old Book._______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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No disagreements. Restuffing the rudder gland was on my list and done
during this refit. I will wait to see how much I have to adjust it.Pete
On 7/8/2013 8:23 PM, John Stevenson wrote:
Pete,
I installed a PSS shaft seal on Sarah in 2001. No problems in the last 12
years. I replaced the standard stuffing box because I had a constant leak
of water into the bilge. It looked like it was coming from the stuffing
box. Turns out the leak was from the stuffing box on the rudder post.
I’m satisfied with the PSS seal, but probably would be just as satisfied
with the stuffing box.Regards,
John Stevenson
http://www.svsarah.comOn Mon, Jul 8, 2013 at 9:39 PM, Page Two wrote:
At present I don’t know anything about these drip less shaft seals (with
springs too?) but I do know without a doubt that as Bob and Indulgence hint
at, that the old stuffing boxes have been working OK for a long. long time.
Simple machined bronze to bronze, unbreakable really, with an inexpensive,
easily replaced waxy stuffing that if you actually do regular maintenance
tightening will keep your bilge dry. Guess I’ll have to study the
advantages or not of the PYI drip-less shaft seal that’s installed on my
soon to be floating home.
Writing a New Chapter Page by Page in an Old Book._______________________________________________
maillist mailing listhttps://pearson424.org/mailman/listinfo/maillist_pearson424.org
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I agree with John. They both do the job. Silverheels came with a stuffing
box. When I re-powered, the installation mechanic offered to throw in a new
PSS for free – I guess he had a bunch on the shelf – so I said sure, do it.
Otherwise I’d still have the original stuffing box. No big deal either way.Tor
Silverheels, P-424 #17
http://www.silverheels.us
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How’s the weather down there?
Sent from my iPhone
On Jul 9, 2013, at 7:08 AM, “Silverheels” wrote:
Quote:I agree with John. They both do the job. Silverheels came with a stuffing
box. When I re-powered, the installation mechanic offered to throw in a new
PSS for free – I guess he had a bunch on the shelf – so I said sure, do it.
Otherwise I’d still have the original stuffing box. No big deal either way.Tor
Silverheels, P-424 #17
http://www.silverheels.us
Quote:
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