Mast Step Corrosion - 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 > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 02-06-2012
Junior Member
 
Join Date: Mar 2011
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
follysurf is on a distinguished road
Mast Step Corrosion

So, I recently dropped my mast and in the process of bringing it down the mast step was detached from the boat and is 'permanently' stuck in the base of the mast.

Any ideas or types of solutions that could eat away the corrosion so the step can be removed from inside the mast?

This weekend I tried using PB Blaster to seperate them with no luck. I have also used an old screwdriver/ hammer combo to try to knock it out (carefully)with no luck.
Reply With Quote Share with Facebook
  #2  
Old 02-06-2012
Senior Member
 
Join Date: Jul 2006
Location: New Jersey
Posts: 143
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 8
fordo is on a distinguished road
I have heard that soaking it in Coca-Cola ovenight will dissolve the corrosion. Haven't tried it myself but it comes from a reliable source. Good luck.
Reply With Quote Share with Facebook
  #3  
Old 02-06-2012
SlowButSteady's Avatar
Senior Slacker
 
Join Date: Feb 2010
Location: SoCal
Posts: 4,223
Thanks: 0
Thanked 17 Times in 15 Posts
Rep Power: 5
SlowButSteady is on a distinguished road
Heat it gently with a propane torch... add PB Blaster... bang it with a hammer a few times... repeat until you get results.

Remember, the butt of the mast has to take all of the load induced by the stay/shroud tension plus the weight of the mast. If the corrosion is bad enough you may have to look into getting the butt (bottom) of your mast redone. Not terribly cheap, but a fraction of the cost of a new mast.
__________________
Never forget them. Do something to prevent it from happening again.
Charlotte Bacon, Daniel Barden, Rachel Davino, Olivia Josephine Gay, Ana M. Marquez-Greene, Dylan Hockley, Dawn Hochsprung, Madeleine F. Hsu, Catherine V. Hubbard, Chase Kowalski, Jesse Lewis, James Mattioli , Grace McDonnell, Anne Marie Murphy, Emilie Parker, Jack Pinto, Noah Pozner, Caroline Previdi, Jessica Rekos, Avielle Richman, Lauren Rousseau, Mary Sherlach, Victoria Soto, Benjamin Wheeler, Allison N. Wyatt
Reply With Quote Share with Facebook
  #4  
Old 02-07-2012
SimonV's Avatar
Wish I never found SN!
 
Join Date: Jul 2006
Location: Brisbane Australia
Posts: 1,990
Thanks: 3
Thanked 4 Times in 4 Posts
Rep Power: 8
SimonV will become famous soon enough
If you can soak it in a bucket of white vinigar over night or longer.
__________________
Simon
Ericson 39B.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

I love my boat
S/V GOODONYA
Brisbane
present location Heading to the Whitesundays

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

DELIVERY SKIPPER
Drinking Rum before 10am makes you a Pirate NOT an alcohlic
Reply With Quote Share with Facebook
  #5  
Old 02-07-2012
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,236
Thanks: 6
Thanked 87 Times in 84 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Quote:
Originally Posted by SimonV View Post
If you can soak it in a bucket of white vinigar over night or longer.
Vinegar will eat at the corrosion as well as the metal. I might try it, but would not leave it overnight. At most, I would check each hour. You might also find that you permanently discolor the outside of the mast, due to the subtle acid etching.

I would try heating the mast first, as mentioned above.
__________________

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 Share with Facebook
  #6  
Old 02-07-2012
Junior Member
 
Join Date: Mar 2011
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
follysurf is on a distinguished road
I will try the heating idea. I guess the key is to move the flame around so as to not damage/ deform the base of the mast in the process. Does heating the outside of the mast loosen up the connection/ corrosion on the inside. Obviously I can direct the flame at the joint of the step and mast base on the outside. The step goes about an inch deep into the mast.

I do like the coca-cola idea as well. It is good at cleaning corrosion off of battery terminals so it should probably work here as well.

Thanks for the help!
Reply With Quote Share with Facebook
  #7  
Old 02-07-2012
Senior Member
 
Join Date: Sep 2011
Location: Massachusetts
Posts: 129
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 3
mm2187 is on a distinguished road
I would be very careful using heat and oils to remove at the same time!
__________________
Schock - New York 36
Portsmouth, RI
Reply With Quote Share with Facebook
  #8  
Old 02-07-2012
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 1,946
Thanks: 0
Thanked 22 Times in 22 Posts
Rep Power: 4
MarkSF is on a distinguished road
Everything I have read on the subject suggests that PB blaster is the most effective penetrating oil you can buy. However it might need a week or two to work.

Is it really getting into the siezed joint? If not drill a hole or two in the mast so that it can.

It would also help if you can apply continuous tension. Can they lift the mast while you suspend a weight from the mast base? Or rig some tackle to pull on the mast base against the mast?
__________________
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
  #9  
Old 02-07-2012
Senior Member
 
Join Date: Sep 2006
Posts: 2,179
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Rockter will become famous soon enough
It really can sieze very solid.
It may need some persuasion.
I guess heat, and mild hammering, and penetrating oil, and vinegar, and Coca-Cola will all have to be tried, methinks.
.
Reply With Quote Share with Facebook
  #10  
Old 02-07-2012
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 1,946
Thanks: 0
Thanked 22 Times in 22 Posts
Rep Power: 4
MarkSF is on a distinguished road
What you need to do is spray PB blaster daily. It might take a week or two to work.

Your problem when applying an impact is that it will try to twist the mast base in the mast which will make it more stuck.

However if you do want to try impact, a screwdriver and hammer are worthless. Get a large cold chisel and a large, heavy lump hammer. These will apply far more kinetic energy than a hammer with much more control and safety.

Then apply impact on alternate sides of the mast so as to even out the force. I'd suggest a few days, at least, of regular PB blaster applications before you try this.

A guy on the Jaguar forum had an XK cylinder head stuck to the block. He got a hoist, and suspended the entire front end of the car in the air BY the cylinder head (bolts removed). Then he sprayed PB Blaster on, every night. After 8 days he found the car on the ground and the head in the air.
__________________
1984 Bristol 31.1
Alameda, California, USA

Last edited by MarkSF; 02-07-2012 at 01:54 PM.
Reply With Quote Share with Facebook
Reply


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
mast corrosion - how serious? pic attached tominny Gear & Maintenance 9 01-05-2012 03:35 PM
corrosion in aluminum mast - options samgary Gear & Maintenance 5 12-09-2011 02:04 PM
Is there a step by step for a stepping of the mast? GilStump Gear & Maintenance 5 07-15-2009 07:45 PM
Mast Corrosion? greencaptn Gear & Maintenance 3 07-09-2007 04:11 PM
Mast Corrosion Repair oldguyflier Gear & Maintenance 5 04-15-2007 11:06 PM


All times are GMT -4. The time now is 09:05 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