Replacing stuffing box flax with GFO - sizing? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 08-19-2012
Senior Member
 
Join Date: Oct 2007
Location: Brazil
Posts: 970
Thanks: 3
Thanked 23 Times in 22 Posts
Rep Power: 8
copacabana is on a distinguished road
Replacing stuffing box flax with GFO - sizing?

I'm leaving for Canada on Wednesday and I want to buy some GFO Gortex stuffing for my prop shaft stuffing box while I'm there. I can't find the good stuff in Brazil. I don't have time to go down to the boat to measure my stuffing box and was wondering if anyone knew the correct diameter stuffing for a 1 inch prop shaft. I seem to have a standard looking stuffing box (with 2 nuts). Does anyone know what diameter stuffing I should buy?

Thanks in advance!
__________________
Vindö 50
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-19-2012
Senior Member
 
Join Date: Oct 2007
Location: Brazil
Posts: 970
Thanks: 3
Thanked 23 Times in 22 Posts
Rep Power: 8
copacabana is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

After checking a few sites it seems to be 1/4 inch diameter for a 1 inch prop shaft. Does this sound right?
__________________
Vindö 50
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-20-2012
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,616
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: Replacing stuffing box flax with GFO - sizing?

1" prop shaft here, with Atomic 4 engine.
3/16" packing is what I use. 1/4" is too tight.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 08-20-2012
Senior Member
 
Join Date: Oct 2007
Location: Brazil
Posts: 970
Thanks: 3
Thanked 23 Times in 22 Posts
Rep Power: 8
copacabana is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

Thanks Caleb. I'll pick up a pack of 3/16 as well, just to be on the safe side.

I haven't found the gortex packing (GFO) that I want, but I did find this:

"Western Pacific PTFE Packing

Two foot length. PTFE Flax Packing is braided from strong rovings and impregnated with PTFE. This combination offers higher performance and longer packing life. PTFE impregnated flax packing ensures a drip-free stuffing box and leak-free propeller shaft."

Has anyone used this stuff? I'm guessing it's not the gortex packing I'm looking for, but is it any good?
__________________
Vindö 50

Last edited by copacabana; 08-20-2012 at 07:29 AM.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 08-20-2012
Member
 
Join Date: Jun 2011
Location: New Jersey
Posts: 31
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
wmmulvey is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

Quote:
Originally Posted by copacabana View Post
I'm leaving for Canada on Wednesday and I want to buy some GFO Gortex stuffing for my prop shaft stuffing box while I'm there. I can't find the good stuff in Brazil. I don't have time to go down to the boat to measure my stuffing box and was wondering if anyone knew the correct diameter stuffing for a 1 inch prop shaft. I seem to have a standard looking stuffing box (with 2 nuts). Does anyone know what diameter stuffing I should buy?

Thanks in advance!
Check out these links. It will answer your question


Packing-Shaft - e Marine Systems


Marine Shaft Packing on Sale

Regards

Bill
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 08-20-2012
Senior Member
 
Join Date: Oct 2007
Location: Brazil
Posts: 970
Thanks: 3
Thanked 23 Times in 22 Posts
Rep Power: 8
copacabana is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

Thanks Wmm.
__________________
Vindö 50
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 08-20-2012
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,616
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: Replacing stuffing box flax with GFO - sizing?

If you haven't seen this it is worth a look/read: Re-Packing A Traditional Stuffing Box Photo Gallery by Compass Marine at pbase.com

He mentions the different kinds of packing GTU vs GFO etc.

They are similar but not identical.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 08-20-2012
Senior Member
 
Join Date: Oct 2007
Location: Brazil
Posts: 970
Thanks: 3
Thanked 23 Times in 22 Posts
Rep Power: 8
copacabana is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

I never attempt ANY maintenance without first checking Mainsail's site to see if he has a tutorial on it!!

I managed to secure the GFO packing in FLA and someone is bringing it to me in Canada. I'm hoping to replace the packing when I get back to Brazil in September. My stuffing box has a grease gun that forces grease into the stuffing nut where the flax is. The idea is that it lubricates and seals at the same time. It is currently dripping a tiny bit, but I hope with the new GFO stuffing to have a truly drip-free stuffing box.
__________________
Vindö 50
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 12-18-2012
Junior Member
 
Join Date: Dec 2012
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
limxp is on a distinguished road
Re: Replacing stuffing box flax with GFO - sizing?

buying expensive packings does not guarantee drip free environment.

Stuffing box must have drips 1 or 2 per min, otherwise packing itself will create serious heat until packing completely incinerates inside of your stuffing box and it is going to be very nasty at the end. Depending on material, some burns or sticks to your shaft like hardened amalgam and I guarantee you will spend half a day squatted under the stuffing box to get that packing out.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Advice: Replacing Stuffing Box Hose Piratesoul Gear & Maintenance 17 07-20-2011 05:25 PM
stuffing box repacking and flax size dreuge Gear & Maintenance 14 04-08-2011 08:38 AM
1979 C&C 29 Mk1 stuffing box flax size? dreuge C & C 1 08-25-2010 02:39 PM
Dripless vs Flax Stuffing Boxes NOSOEWE Gear & Maintenance 15 11-07-2009 08:31 PM
Stuffing Box Flax - Theory vs Practice MC1 Gear & Maintenance 12 04-22-2009 04:49 PM


All times are GMT -4. The time now is 08:14 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.