Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-11-2020, 12:01 PM   #21
Guru
 
kchace's Avatar
 
City: Brookline, NH
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 2,054
Quote:
Originally Posted by rslifkin View Post
Dripless seals are functionally nice, but there's some concern about failure. When one fails, the failure modes are usually worse (and harder to fix in the water) than a leaky stuffing box.

There is also the expense if the boat is not already fitted with them. Yes, traditional stuffing boxes do require *some* maintenance, but its minimal especially if one uses modern packing materials.


I have the Western Trading packings in my boat and 5 years so far with no issues or adjustments required at all.



Ken
__________________
Advertisement

kchace is offline   Reply With Quote
Old 03-11-2020, 12:02 PM   #22
Guru
 
City: Rochester, NY
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 3,522
Agreed. Even if I had to re-pack the stuffing boxes every year, it would still take a long time to come up to the cost of a dripless seal (assuming I do the repack myself).
__________________

rslifkin is online now   Reply With Quote
Old 03-11-2020, 12:29 PM   #23
Senior Member
 
Scottwb96's Avatar
 
City: Burien
Vessel Name: Star Weird
Vessel Model: Camargue
Join Date: Apr 2019
Posts: 172
Valid reason.... But, I feel the failure rate of DS is so low and as long as you don't try to run them for 20 years without any maintenance, should be alright... The last ones I replaced on my new boat had been on for over 15 years and still almost looked brand new. Only reason I replaced them was because I was already doing shaft/prop work. Had everything apart already, seemed like a good time/money investment...
Scottwb96 is offline   Reply With Quote
Old 03-11-2020, 02:07 PM   #24
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 11,833
Quote:
Originally Posted by bluemainship View Post
I use duramax shaft packing no drips even when under way fore 10 years
Our boat had Duramax packing in it when we bought it and it didnít leak. I just replaced the hose, clamps and packing on my port shaft and went with Duramax because we didnít have any issues with it before.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 03-11-2020, 06:57 PM   #25
Guru
 
Northern Spy's Avatar
 
City: Powell River, BC
Vessel Name: Northern Spy
Vessel Model: Nordic Tug 26
Join Date: Feb 2012
Posts: 3,920
Duramax packing is braided ePTFE material imbibed with graphite.

It is equivalent to GFO.
Northern Spy is offline   Reply With Quote
Old 03-15-2020, 04:03 PM   #26
Guru
 
firstbase's Avatar
 
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,525
Isn't there some concern about corrosion of the shaft when you use packing that contains graphite? Or something like that..???
__________________
Hal
BLACK EYED SUSAN
Grand Banks 42 Classic
firstbase is offline   Reply With Quote
Old 03-15-2020, 04:28 PM   #27
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 11,833
Our boat had used Duramax for 19 years. I replaced the hose, clamps and packing on one shaft this winter. Where the packing rides on the shaft there was no evidence of any damage, just shiny surface.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 03-15-2020, 06:10 PM   #28
Guru
 
kchace's Avatar
 
City: Brookline, NH
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 2,054
I’ve used the duramax for 5 years and removed a shaft for inspection and found no issue whatsoever.

Ken
kchace is offline   Reply With Quote
Old 03-15-2020, 07:23 PM   #29
Guru
 
firstbase's Avatar
 
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,525
Thanks guys. I remember it being a discussion but couldn't remember the final answer.
__________________
Hal
BLACK EYED SUSAN
Grand Banks 42 Classic
firstbase is offline   Reply With Quote
Old 03-15-2020, 07:36 PM   #30
Guru
 
mahal's Avatar
 
Join Date: May 2010
Posts: 615
No shaft damage here either after 8 to 10 years.
mahal is offline   Reply With Quote
Old 03-16-2020, 01:05 PM   #31
Veteran Member
 
Benchmark's Avatar
 
City: Penetanguishene
Vessel Name: Loose Goose X, and second boat, the Benchmark
Vessel Model: 1994 Ocean Alexander 423 and a 1967 Chris Craft Constellation
Join Date: Aug 2013
Posts: 66
An alternative is plain teflon packing. Without the textile fabric fibres there is less chance of scoring shafts. I've been running almost dry for 2 years 600 miles per year temperature never gets over 95 at packing gland. Research the shaft scoring issue before you finalize.
Benchmark is offline   Reply With Quote
Old 03-16-2020, 01:44 PM   #32
Veteran Member
 
City: Charleston
Join Date: Nov 2018
Posts: 25
Stuffing the stuffing box

The USCG has been using GFO for years. Iíve used it since a coastie gave me some in St Croix years ago.
Exsailor2018 is offline   Reply With Quote
Old 03-16-2020, 03:46 PM   #33
Guru
 
Gulf Comanche's Avatar
 
City: Baton Rouge, Louisiana
Vessel Name: Old School
Vessel Model: 38' Trawler custom built by Hike Metal Products
Join Date: Dec 2007
Posts: 1,001
I ordered and received the GFO and corkscrew. Having done this job several times w/ flax, are there any special issues to be aware of? Cut end at 45* angle? Screw the nut back till no drip or just a small drip? How many hours runtime till tighten up to no drip? 3 or 4 rings of packing?
Thanks
Gulf Comanche is online now   Reply With Quote
Old 03-16-2020, 04:31 PM   #34
Guru
 
kchace's Avatar
 
City: Brookline, NH
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 2,054
Quote:
Originally Posted by Gulf Comanche View Post
I ordered and received the GFO and corkscrew. Having done this job several times w/ flax, are there any special issues to be aware of? Cut end at 45* angle? Screw the nut back till no drip or just a small drip? How many hours runtime till tighten up to no drip? 3 or 4 rings of packing?
Thanks

When I did mine I just duplicated what was in there - 4 rings with the ends cut at a 45. As far as tightening goes, IMO its always better to work up to it because you can always tighten more but there's nothing pushing back to cause the material to relax if you tighten too much.

Ken
kchace is offline   Reply With Quote
Old 03-16-2020, 05:20 PM   #35
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 11,833
Duramax says run the boat 5 to 10 hours and tighten it slowly.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 03-16-2020, 08:29 PM   #36
Veteran Member
 
Benchmark's Avatar
 
City: Penetanguishene
Vessel Name: Loose Goose X, and second boat, the Benchmark
Vessel Model: 1994 Ocean Alexander 423 and a 1967 Chris Craft Constellation
Join Date: Aug 2013
Posts: 66
Leave the nut(s) loose until after you splash the boat, and then go SLOW. Hand tight and I was dripless at test another half turn after an hour run, and that's where we are today. It is really good stuff....gentle gentle and forever solved. PM
Benchmark is offline   Reply With Quote
Old 03-16-2020, 09:59 PM   #37
Veteran Member
 
Caballero II's Avatar
 
City: Santa Barbara Harbor
Vessel Name: Caballero II
Vessel Model: Grand Banks Classic 36
Join Date: Mar 2017
Posts: 93
What is GFO? Jeez, people. If you're going to use an acronym, please be sure it's at least it's obvious from a previous post. Otherwise, don't use them except in your own post where you have already defined what it means. Basic journalism.
Caballero II is offline   Reply With Quote
Old 03-16-2020, 10:15 PM   #38
TF Site Team
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Never Say Never
Vessel Model: President 41 DC
Join Date: Jul 2015
Posts: 11,833
GFO is a type of packing made by Gore. I have never heard it referred to as anything other than GFO. I don’t know what else to call it... Maybe someone else knows something else to call it but I don’t.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you arenít one, there is no explanation possible.
Comodave is offline   Reply With Quote
Old 03-16-2020, 10:22 PM   #39
Veteran Member
 
Caballero II's Avatar
 
City: Santa Barbara Harbor
Vessel Name: Caballero II
Vessel Model: Grand Banks Classic 36
Join Date: Mar 2017
Posts: 93
Thank you. Well, let's just call it "Gore Packing Material", otherwise known as GFO. We're good. Is it teflon, Gore-tex or maybe something else? How do we compare apples to apples?
Caballero II is offline   Reply With Quote
Old 03-16-2020, 11:14 PM   #40
Senior Member
 
guy with a boat's Avatar
 
City: SoCal and Vancouver Island
Vessel Name: Tortuga
Vessel Model: Nordhavn 63
Join Date: Aug 2016
Posts: 259
Quote:
Originally Posted by Caballero II View Post
What is GFO? Jeez, people. If you're going to use an acronym, please be sure it's at least it's obvious from a previous post. Otherwise, don't use them except in your own post where you have already defined what it means. Basic journalism.
Google is your friend. There are more boaters than journalists here.
__________________

guy with a boat is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 12:34 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×