Gluing Pedestal Guard Feet??? - 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? 


Like Tree1Likes
  • 1 Post By paul323
Reply
 
LinkBack Thread Tools
  #1  
Old 12-29-2012
Senior Member
 
Join Date: Feb 2008
Location: N. VA
Posts: 656
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
dacap06 is on a distinguished road
Send a message via Yahoo to dacap06
Gluing Pedestal Guard Feet???

OK, I have something I can't get out of my head because it doesn't seem right but I can't figure out why not. Can anyone see a problem?

I have a pedestal guard I want to put on the Edson Pedestal while I'm doing my winter maintenance. Normally, that would mean drilling holes in the deck for the feet, clearing out the balsa, filling with epoxy, redrilling through the epoxy, chamfering the cut, and finally mounting the feet with butyl tape. The problem is I am loathe to drill holes in a perfectly good (and waterproof) deck, especially above my engine like this.

So I got to thinking, what if I were to glue the feet in place with 5200? No holes, no possible leaks, ever. My intuition tells me there's some disadvantage to it, but for the life of me I don't see it. Can anyone show me my blind spot?

Thanks

Tom
__________________
T. P. Donnelly
S/V Tranquility Base
1984 Islander 30 Bahama
Pasadena, MD
Reply With Quote Share with Facebook
  #2  
Old 12-29-2012
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,875
Thanks: 6
Thanked 42 Times in 40 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Gluing Pedestal Guard Feet???

I depends on the size of what you are glueing down, but the torqu loads that can be applied from a pedestal can be huge, well beyond what 5200 can handle. When you run the numbers, not much on a boat is more highly loaded than a pedestal base, and it is all torque loads, so the distance above the pivot (where it's glued) is multiplied by the force applied.

Not only do pedestals need to be bolted, they need heavy backing plates.
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #3  
Old 12-29-2012
Member
 
Join Date: Feb 2000
Posts: 33
Thanks: 2
Thanked 1 Time in 1 Post
Rep Power: 0
dsmauney is on a distinguished road
Gluing Pedestal Guard Feet???

I drilled, removed balsa, epoxy, redrilled with countersink ( ref Mainesail) and sealed with butyl. Worked great and is solid with thru bolts. Did the same for holes to feed wire through for pedistal guard instruments.

Goodwinds
DaveM
Reply With Quote Share with Facebook
  #4  
Old 12-29-2012
Senior Member
 
Join Date: Sep 2006
Posts: 2,195
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
Rockter will become famous soon enough
Re: Gluing Pedestal Guard Feet???

Glue it and bolt it.
Don't glue it alone.
Someone will lose their balance and fall on to it in the dead of night and it will get torn off.
.
Reply With Quote Share with Facebook
  #5  
Old 12-29-2012
Member
 
Join Date: Mar 2010
Location: SF - South Bay
Posts: 511
Thanks: 1
Thanked 10 Times in 10 Posts
Rep Power: 5
paul323 is on a distinguished road
Re: Gluing Pedestal Guard Feet???

Drill and bolt.

Remember the 5200 (yuk) would be glued to the paint/gelcoat. So whichever bond is weaker - 5200 to gelcoat, or gelcoat to 'glass - will fail. Drilled and bolted with good backing plate distributes the load over a much larger and stronger area.

no-brainer, IMHO.
chef2sail likes this.
Reply With Quote Share with Facebook
  #6  
Old 12-29-2012
Senior Member
 
Join Date: Feb 2008
Location: N. VA
Posts: 656
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
dacap06 is on a distinguished road
Send a message via Yahoo to dacap06
Re: Gluing Pedestal Guard Feet???

Quote:
Originally Posted by paul323 View Post
Drill and bolt.

Remember the 5200 (yuk) would be glued to the paint/gelcoat. So whichever bond is weaker - 5200 to gelcoat, or gelcoat to 'glass - will fail. Drilled and bolted with good backing plate distributes the load over a much larger and stronger area.


Ha! That's it! I wouldn't be attaching directly to the fiberglass.

Stumble, I think you misunderstood what I was asking. I was discussing the glueing the feet for the chrome tubing of the pedestal guard, not the pedestal itself. The pedestal is already secured with bolts and a large backing plate. The guard is held in place by the feet and where it passes through a plate that is inserted into the pedestal assembly. the picture below shows the entire thing in the left hand part and just the guard, the plate, and the feet in the right hand part.



Now I just need to find an epoxy that can cure at low/subfreezing temperatures. If I can't I'll have to wait until Spring to do this task.

Tom
__________________
T. P. Donnelly
S/V Tranquility Base
1984 Islander 30 Bahama
Pasadena, MD
Reply With Quote Share with Facebook
  #7  
Old 12-30-2012
Senior Member
 
Join Date: Aug 2008
Posts: 316
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 7
Sanduskysailor is on a distinguished road
Re: Gluing Pedestal Guard Feet???

Bad idea. Not enough bearing surface to hold and as others have stated it will tear up the gelcoat in short order. My thinking is that your pedestal and guard should be rock solid. I redid my cockpit sole, recored, and glassed a solid section for the pedestal, rudder post and pedestal guard. My pedestal and guard are now bolted through 1-1/4" of solid glass. I never worry anymore when my 275lb crew grabs the pedestal as he moves across the cockpit.
Attached Thumbnails
Gluing Pedestal Guard Feet???-beforegel.jpg   Gluing Pedestal Guard Feet???-soletemplate.jpg  
Reply With Quote Share with Facebook
  #8  
Old 12-30-2012
chef2sail's Avatar
Senior Member
 
Join Date: Nov 2007
Location: Maryland
Posts: 6,891
Thanks: 29
Thanked 54 Times in 50 Posts
Rep Power: 7
chef2sail will become famous soon enough
Send a message via AIM to chef2sail
Re: Gluing Pedestal Guard Feet???

Tom,

I did this exact project 5 years ago. The pedestal guard legs insertsinto the chrome feet which have a rubber gasket and a large heavy washers and have two substantial 3-4 inch long (1/2 inch diameter bolts). You must put the washers ( I added a backing plate too) under the cockpit sole then the rubber on top of the sole then the chrome feet holder. Just gluing with 5200 will not withstand the stress of pressure you will torque the guard with either holding on to it or falling against it. The backing plate will spread the stress. In my install I actually used the tubes to lead down all my wires from the two nav pods I have which have Chartplotter and radar cables. I drilled holes for the bolts as well as for the cables. If you have core you have to gouge it out and fill with epoxy so there is no water intrusion in the core of the cockpit sole.

http://www.defender.com/product.jsp?...7548&id=128476
__________________

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

Last edited by chef2sail; 12-30-2012 at 04:24 AM.
Reply With Quote Share with Facebook
  #9  
Old 12-30-2012
SchockT's Avatar
Senior Member
 
Join Date: May 2012
Location: North Vancouver, BC
Posts: 1,413
Thanks: 1
Thanked 26 Times in 24 Posts
Rep Power: 3
SchockT is on a distinguished road
Re: Gluing Pedestal Guard Feet???

I receives some bad advise a number of years ago an bedded my rope clutches with 5200. I developed a leak on one of them, and had to pull it to seal the leak. That is when I realized the mistake I had made using 5200 in the first place. I thought I could just peel the clutches off the deck. Yeah right! So I thought, "no problem I just need a little more force!" so I attached a halyard to one end of the clutches and used the winch to carefully lift them off the deck. They showed no signs of separating from the deck, but the cabin top was visibly flexing. I am sure that if I continued with that strategy I would have ripped a hole in the deck before the 5200 let go! That stuff is pretty much forever! The problem is, whatever load you put on it is ONLY on the top layer of the deck. If you exceed the strength of that layer you are dealing with serious damage to your deck.

Do yourself a favor: come to terms with the idea of drilling holes and through bolting your hardware. The way you describe it is certainly a good way to go about it, but if you bed it properly you don't necessarily have to go that far. Don't glue it, bolt it!
__________________
1979 Santana 30 Tall Rig
Hull#101
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
Navpod Pedestal Guard cghubbell Gear & Maintenance 8 05-17-2011 04:26 PM
Using a Pedestal Guard, Edison’s Vision for Electronics southwindphoto Electronics 1 07-26-2010 10:59 AM
Drill through guard or pedestal? Tanley Gear & Maintenance 5 05-20-2010 02:56 PM
Wiring through pedestal guard downeast450 Gear & Maintenance 19 03-16-2010 10:51 AM
Wiring GPS: pedestal or pedestal guard? geary126 Gear & Maintenance 14 05-17-2007 02:43 PM


All times are GMT -4. The time now is 03:17 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.