Any tips for removing corroded bolts at rudder? - 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 05-09-2013
kjzerr's Avatar
Member
 
Join Date: Aug 2012
Location: Bedford, NH
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
kjzerr is on a distinguished road
Any tips for removing corroded bolts at rudder?

Good day everyone!

I am in need of some advice as to the best method to remove bolts that are corroded into their sleeves in a tight area. I am in the process of refinishing the topside, and I need to remove the rudder in order to do a proper job on the transom (the rudder is mounted to the transom).

There is a yoke (I'll call it that for lack of knowing its nomenclature) under the helmsman's seat to which the cables coming from the helm attach. This "yoke" is then attached to a protrusion imbedded in the rudder which passes through an opening in the transom. There are three 1/4" bolts about 2" long which connect these two pieces together. I have removed the lock nuts from each bolt, but I cannot get them to come out. Each appears corroded in its sleeve. One will turn but won't back out and the other two will not budge at all. I'm afraid to get too aggressive with them for fear of breaking them off. The location under the helmsman's seat is too confining to swing a hammer to drive them out. And, the yoke is too large to pass through the opening in the transom, so the two parts must first be disconnected to remove the rudder.

1. Any recommendations for something that would penetrate the sleeve and help dissolve the corrosion so the bolts will break free (WD-40, etc.)?
2. Any thoughts on a tool to press them out? I thought of trying to use a C-clamp as a press.

As always, any thoughts will be greatly appreciated.

Kermit
__________________
S/V "Spirit" - 1971 C&C 36R
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 05-09-2013
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,606
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: Any tips for removing corroded bolts at rudder?

No need to use wd 40 for this. There is a much better product called PB Blaster that will work better. I have had good luck spraying old, nasty looking bolts with this stuff. Sometimes I have to let it work for several days with several applications. So far I haven't been disappointed with pb blaster.
There are other penetrating oil products as well: Kroil, SeaFoam etc.
If you can't find any of these then use ATF (automatic transmission fluid) mixed with a little acetone.
I'm not really picturing what you are describing under the transom seat. A picture might help a lot.
Good luck.
__________________
"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
  #3  
Old 05-09-2013
Senior Member
 
Join Date: Dec 2011
Location: NH
Posts: 518
Thanks: 0
Thanked 5 Times in 5 Posts
Rep Power: 3
misfits is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

PB Blaster & a lot of patience.
__________________
I'm not happy unless I'm complaining about something.
I'm having a very good day!
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 05-09-2013
Senior Member
 
Join Date: May 2006
Posts: 257
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 9
mike dryver is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

PB blaster and heat!!!! heat the bolts one at a time heat 1 not to the point of turning red, just hot, spray the blaster (note it will smoke and the fumes will irritate your lungs, throat and nose) so try not to inhale when you spray, then turn away> do this to each bolt several times, then soak with PB over night. come back following day and do it again, if you have to.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 05-09-2013
tommays's Avatar
Senior Member
 
Join Date: Sep 2008
Posts: 4,278
Thanks: 1
Thanked 29 Times in 29 Posts
Rep Power: 7
tommays will become famous soon enough
Re: Any tips for removing corroded bolts at rudder?

I looked it up and it is a TILLER BOAT SO heat is pretty much a NO NO due to the bolts contact with so much fiberglass

So just keep working it




It could be worse and inside and require standing on your head to reach if you had a wheel
__________________
1970 Cal 29 Sea Fever

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

1981 J24 Tangent 2930
Tommays
Northport NY


If a dirty bottom slows you down what do you think it does to your boat
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by tommays; 05-09-2013 at 07:46 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 05-09-2013
kjzerr's Avatar
Member
 
Join Date: Aug 2012
Location: Bedford, NH
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
kjzerr is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

Here's a couple of pics, one for perspective and one close up.
Attached Thumbnails
Any tips for removing corroded bolts at rudder?-photo-89-.jpg   Any tips for removing corroded bolts at rudder?-photo-90-.jpg  
__________________
S/V "Spirit" - 1971 C&C 36R
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 05-09-2013
azguy's Avatar
Senior Member
 
Join Date: Jul 2012
Location: Scottsdale
Posts: 544
Thanks: 0
Thanked 14 Times in 14 Posts
Rep Power: 3
azguy is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

PB Blaster will get it done, soak it good a few times over a few hours and then let it sit for 24 hours-
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 05-09-2013
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,606
Thanks: 4
Thanked 92 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: Any tips for removing corroded bolts at rudder?

Quote:
Originally Posted by tommays View Post
I looked it up and it is a TILLER BOAT SO heat is pretty much a NO NO due to the bolts contact with so much fiberglass

It could be worse and inside and require standing on your head to reach if you had a wheel
I'm not so sure there isn't a wheel involved with this set up.
Looks to me like the tiller stub is what attaches to cables which probably run to a binnacle and a wheel. Seems a bit unusual that no quadrant is used.
It is a 36' C&C after all; certainly big enough for wheel steering.

Still, I agree with you Tom, that heating these bolts, which are so close to the FRP deck should be done carefully, if at all.
__________________
"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
  #9  
Old 05-09-2013
ReefMagnet's Avatar
Living the dream
 
Join Date: May 2008
Location: Mackay Qld AU
Posts: 101
Thanks: 4
Thanked 10 Times in 9 Posts
Rep Power: 7
ReefMagnet is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

I would add to the above and say go buy a small cordless impact wrench. I have a 10.8 volt one which is very compact that was included in a kit I purchased and I had absolutely no idea how handy it would be on a boat until I actually started using it. These gadgets will not only rattle stubborn bolts loose better than any hand tool, but it will also do and undo stainless steel philips screws with greatly reduced risk of burring the head over.
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 05-10-2013
celenoglu's Avatar
Senior Member
 
Join Date: Dec 2008
Posts: 570
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 6
celenoglu is on a distinguished road
Re: Any tips for removing corroded bolts at rudder?

Use cold if you cannot heat the bolts. There are cooler sprays. If rust removers do not work use some type of mild acid.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Tags
bolts , corrosion , removal , rudder

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
Removing old/corroded seacocks Beersmith Gear & Maintenance 16 03-24-2013 08:35 PM
Advice on removing snapped s/s bolts from alu block MarkSF Gear & Maintenance 35 10-08-2012 08:28 AM
Removing lag screws corroded on strainer thruhull Goblinfog Gear & Maintenance 1 03-28-2011 04:34 PM
Removing the rudder Survivor Gear & Maintenance 4 08-08-2008 01:37 PM
Tips for removing Cetol? Quickstep192 General Discussion (sailing related) 11 03-10-2007 07:02 PM


All times are GMT -4. The time now is 06:27 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.