Stuck Seacock-- Blowtorch? - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Chat  
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? 


Like Tree13Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 03-04-2013
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,788
Thanks: 14
Thanked 51 Times in 50 Posts
Rep Power: 8
Bene505 will become famous soon enough Bene505 will become famous soon enough
Stuck Seacock-- Blowtorch?

At the suggestion of the well-respected rigger at the boatyard, I've plugged up the throughhull and now have a stuck-open seacock filled with vinegar. This is in a effort to disolve any build-up that could be causing it to seize.

If that doesn't work, what next? I'm thinking of taking advantage of the cold weather to get the outer part of the seacock to expand, and trying to get it to move then. My plan is to use a thermal blanket to protect the hull and hoses and then apply a blowtorch to the seacock, while trying to get it to close.

What do you think of this? Has anyone tried this?

For a home-made thermal blanket, I'll use about 20 layers of aluminum foil with a layer of cotton behind it.

I believe the seacock is bronze with a stainless-looking ball in the middle. I have some pictures that I'll post.

Regards,
Brad
__________________
.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing. I don't know why. It's a mystery!
.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 03-04-2013
Maine Sail's Avatar
Senior Member
 
Join Date: Jan 2003
Location: Maine Coast
Posts: 5,727
Thanks: 17
Thanked 183 Times in 142 Posts
Rep Power: 16
Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice
Re: Stuck Seacock-- Blowtorch?

Brad,

Time to replace the valve, not try to "fix" it.... Ball valves only have a certain lifespan, yours sounds like it found it...
__________________
______
-Maine Sail / CS-36T


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




© Images In Posts Property of Compass Marine Inc.


Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 03-04-2013
Senior Member
 
Join Date: Jan 2011
Posts: 747
Thanks: 0
Thanked 18 Times in 18 Posts
Rep Power: 5
Frogwatch is on a distinguished road
Re: Stuck Seacock-- Blowtorch?

Not all seacocks are ball valves. I doubt you need the thermal blanket, The thermal conductivity of the fiberglass is low. Do NOT Use a blow torch. Instead, buy a heatgun and a cheater bar on the valve handle wiggling it till it starts to move after the body gets hot.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 03-04-2013
Senior Member
 
Join Date: Jul 2006
Location: Corpus Christi, Tx
Posts: 1,316
Thanks: 34
Thanked 39 Times in 38 Posts
Rep Power: 9
ccriders is on a distinguished road
Re: Stuck Seacock-- Blowtorch?

I think Mainesail is right. If you are out of the water, now is the time to replace it. You really need to be able to close these through hulls, for obvious reasons. Not an item to cut corners on.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 03-04-2013
chef2sail's Avatar
Senior Member
 
Join Date: Nov 2007
Location: Maryland
Posts: 7,069
Thanks: 30
Thanked 58 Times in 54 Posts
Rep Power: 8
chef2sail will become famous soon enough
Send a message via AIM to chef2sail
Re: Stuck Seacock-- Blowtorch?

Use a pastry blowtorch for doing creme brulees pinpoint flame. I agree with main also...No sense in messing with it. Ball valve possibly have ice in it?
Seaduction likes this.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
___________________________
S/V Haleakala (Hawaiian for" House of the Sun")
C&C 35 MKIII Hull # 76
Parkville, Maryland
(photos by Joe McCary)
Charter member of the Chesapeake Lion posse

Our blog-
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


“Sailing is just the bottom line, like adding up the score in bridge. My real interest is in the tremendous game of life.”- Dennis Conner
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 03-04-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,456
Thanks: 5
Thanked 55 Times in 55 Posts
Rep Power: 5
MarkSF is on a distinguished road
Re: Stuck Seacock-- Blowtorch?

Let's say you do get it moving again, will you trust it? Will it give you years more of reliable service? Probably not. Why not just replace it??
__________________
Bristol 31.1, San Francisco Bay
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 03-04-2013
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 10,493
Thanks: 45
Thanked 199 Times in 184 Posts
Rep Power: 7
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Stuck Seacock-- Blowtorch?

Vinegar is a great low grade acid to dissolve corrosion, however, it doesn't know the difference between corrosion and good metal. It all goes. I bet at best you're going to have a moving seacock that doesn't seal like it should.

I think your fate is sealed. A direct replacement would be pretty simple, if you're out of the water.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 03-04-2013
boatpoker's Avatar
Dirt Free
 
Join Date: Jul 2008
Location: Toronto
Posts: 1,144
Thanks: 9
Thanked 29 Times in 28 Posts
Rep Power: 7
boatpoker is on a distinguished road
Re: Stuck Seacock-- Blowtorch?

If this is a Beneteau (judging by your moniker) it is very doubtful that you have a "seacock". More likely a chrome plated brass ball valve with NPT thread on a bronze throughull with NPS threads. If it is a brass valve. it will take more than vinegar to fix it. Cut if off and replace with a real seacock.
davidpm likes this.
__________________
Dirt People Scare me
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 03-05-2013
Bene505's Avatar
Glad I found Sailnet
 
Join Date: Jul 2008
Posts: 3,788
Thanks: 14
Thanked 51 Times in 50 Posts
Rep Power: 8
Bene505 will become famous soon enough Bene505 will become famous soon enough
Re: Stuck Seacock-- Blowtorch?

I think I may have promised to post a picture of the seacock. Here it is.



Regards,
Brad
__________________
.
.
Great minds discuss ideas;
Average minds discuss events;
Small minds discuss people.
.
The best minds discuss sailing. I don't know why. It's a mystery!
.
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 03-05-2013
Maine Sail's Avatar
Senior Member
 
Join Date: Jan 2003
Location: Maine Coast
Posts: 5,727
Thanks: 17
Thanked 183 Times in 142 Posts
Rep Power: 16
Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice Maine Sail is just really nice
Re: Stuck Seacock-- Blowtorch?

Quote:
Originally Posted by Bene505 View Post
I think I may have promised to post a picture of the seacock. Here it is.



Regards,
Brad
Same advice...

Beyond that Beneteau often used sub par seacocks, valves and thru-hulls for below waterline use. If the boat was US built the sea valves should be marked "UL Marine". If it was an EU built boat the sea valves should be marked DZR. If they are not marked with either marking they meet neither the US specs or the EU specs and were of questionable quality to begin with.

I have seen Beneteau installed valves/seacocks literally CRUMBLE due to dezincification.....

Hamilton marine has plenty of stock of UL Marine ball valves and thru-hull fittings from Groco and Apollo/Conbraco.
Sabreman likes this.
__________________
______
-Maine Sail / CS-36T


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




© Images In Posts Property of Compass Marine Inc.


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
Seized seacock sgjfrods General Discussion (sailing related) 25 07-02-2012 08:00 AM
darn seacock QuickMick Atomic 4 5 05-06-2010 06:43 PM
seacock? redhead78 Diesel 2 01-30-2010 07:59 PM
seacock redhead78 Gear & Maintenance 5 01-19-2010 09:44 AM
old seacock inspection seafoam Gear & Maintenance 14 12-15-2009 02:07 PM


All times are GMT -4. The time now is 10:01 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, 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.