spreader bolt mast issue - 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 08-30-2013
Junior Member
 
Join Date: Aug 2013
Posts: 1
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
cmuz is on a distinguished road
spreader bolt mast issue

Forward bolt on spreader has pulled out of mast and started a tear in the aluminum. Evidence of some stress on the other bolt holes as well. Any ideas or suggestions from anyone who has observed similar would be greatly appreciated. One suggestion from local marina was to machine an aluminum spreader bracket to replace the stainless and welt it directly to the mast.
Attached Thumbnails
spreader bolt mast issue-20130828_164123-starboard-1-b.jpg   spreader bolt mast issue-20130828_164154-port-b.jpg   spreader bolt mast issue-20130828_164031starboard-2-b.jpg  
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 08-30-2013
azguy's Avatar
Senior Member
 
Join Date: Jul 2012
Location: Scottsdale
Posts: 550
Thanks: 0
Thanked 14 Times in 14 Posts
Rep Power: 3
azguy is on a distinguished road
Re: spreader bolt mast issue

I would think that's pretty serious and needs immediate attention, I'll be interested to read some suggestions...
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 08-30-2013
gamayun's Avatar
Senior Member
 
Join Date: Aug 2009
Location: San Francisco
Posts: 478
Thanks: 14
Thanked 21 Times in 21 Posts
Rep Power: 6
gamayun is on a distinguished road
Re: spreader bolt mast issue

I'll be interested in hearing about this, too. It is curious that it is being held by 2 screws and 1 bolt.
__________________

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

s/v Kynntana
Freedom 38
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 08-30-2013
OPossumTX's Avatar
Senior Member
 
Join Date: Jul 2011
Location: Alvin, Texas
Posts: 165
Thanks: 24
Thanked 4 Times in 4 Posts
Rep Power: 4
OPossumTX is on a distinguished road
Re: spreader bolt mast issue

DO SOMETHING! If you don't, your mast is about to get very noticably shorter.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 08-30-2013
manatee's Avatar
Senior Member
 
Join Date: Feb 2013
Location: S.E. Florida
Posts: 967
Thanks: 18
Thanked 75 Times in 64 Posts
Rep Power: 2
manatee is on a distinguished road
Re: spreader bolt mast issue

Anything causing unusual forces or stress on the shrouds & spreaders?

Barring a new mast, could you make a boot or collar to wrap around the mast to reinforce it, attach spreaders to boot? Like this:
Split Steel Conduit

This would be *temporary*, but better than nothing. I'd be worrying about the mast failing at the bolt line.

The mast needs to be reinforced at spreader attachment points, and probably other attachments.
Can they saw the mast in half at the failure and install a reinforcing sleeve, then put it back together? An extra pound or two aloft is better than having the whole rig come down on your head.

Do you have spreader support lines? They attach about halfway between mast & spreader tip, attach to mast at about 45-degree angle, distribute loads & keep spreaders from drooping.

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

"The skipper should be the calmest person on board.
It is good for the morale of those around you. However, if everyone around you is frightened then be aware of the possibility that they know something you donít."

~~Dylan Winter,
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
  #6  
Old 08-30-2013
Senior Member
 
Join Date: Apr 2008
Posts: 459
Thanks: 12
Thanked 17 Times in 17 Posts
Rep Power: 7
Hudsonian is on a distinguished road
Re: spreader bolt mast issue

You may wish to replace the two spreader brackets with a SS collar and continuous spreader. Check with rig manufacturer. These failures are common and often the spar maker has developed a retrofit.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 08-30-2013
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 730
Thanks: 6
Thanked 54 Times in 49 Posts
Rep Power: 9
knuterikt is on a distinguished road
Re: spreader bolt mast issue

Quote:
Originally Posted by Hudsonian View Post
You may wish to replace the two spreader brackets with a SS collar and continuous spreader. Check with rig manufacturer. These failures are common and often the spar maker has developed a retrofit.
continuous spreader is the best solution.
The mast can be reinforced by riveting curved plates on both sides of the mast. No need to cut the mast into two pieces first, most probably you will have a hard time to find a profile that will fit inside the mast.

Have a look at this thread Cracked Mast at Spreader - SparTalk
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 08-30-2013
Senior Member
 
Join Date: Oct 2011
Posts: 1,382
Thanks: 6
Thanked 24 Times in 24 Posts
Rep Power: 4
Seaduction is on a distinguished road
Re: spreader bolt mast issue

Older posts on the subject: repairing cracked mast with welding
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
Triple Spreader Mast Rustyf General Discussion (sailing related) 5 12-01-2011 01:17 AM
Mast, spreader, shroud design, help Talisman66 Gear & Maintenance 1 11-23-2008 04:41 AM
Cal 20 Keel Bolt Issue sailorlinus Cal 3 11-12-2008 05:48 PM
Keel bolt issue gray_williams Gear & Maintenance 8 12-05-2003 07:23 AM


All times are GMT -4. The time now is 05:16 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.