Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 29-01-2016, 08:52   #46
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,201
Images: 52
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by neilpride View Post
Plexus is not flexible , so I doubt very much that with just retorque aft keel bolt you can go away that easy, I mean , plexus is like a epoxy putty , hard... in the safety sheet of plexus maybe you can found the melting point of the material or any other indication to make life easy if you need to remove it... I guess
Have used a hot wire before to remove bedded keels. Only works if you can pull all the bolts first, for obvious reasons.
__________________

__________________
O you who turn the wheel and look to windward,

Consider Phlebas, who was once handsome and tall as you.
minaret is online now   Reply With Quote
Old 29-01-2016, 09:31   #47
Registered User
 
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 3,099
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by minaret View Post
You run the hole saw till it hits steel.



Pretty often I finish a job like this with an exterior tape on the keel/hull joint as well.
You mean run the whole lenght of the stud to the keel with a hole saw and later fill it with plexus? i mean the plexus will adhere in moist conditions to the surrounding hole laminate? i dont see a problem with that if the exterior joint is filled to... i see a washer under the bolt , could be a good idea to increase the size since the hole saw remove solid laminate around the stud?
__________________

__________________
neilpride is offline   Reply With Quote
Old 29-01-2016, 09:50   #48
Resin Head
 
minaret's Avatar

Cruisers Forum Supporter

Join Date: Aug 2007
Location: Seattle WA
Boat: Nauticat
Posts: 7,201
Images: 52
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by neilpride View Post
You mean run the whole lenght of the stud to the keel with a hole saw and later fill it with plexus? i mean the plexus will adhere in moist conditions to the surrounding hole laminate? i dont see a problem with that if the exterior joint is filled to... i see a washer under the bolt , could be a good idea to increase the size since the hole saw remove solid laminate around the stud?

Exactly. Usually keel bolt holes are oversized anyway, the vast majority of the times I have done this the hole saw is only cutting the bonding material, not original laminate. I usually use a carbide abrasive saw for this, less kerf and better cutting. I wouldn't Plexus it back together, I'd use epoxy, starting with pouring penetrating epoxy and then neat resin into the saw kerf. Remember, usually there is not only no stub but an actual recess in the hull on this type of arrangement. That means the custom "deep" hole saw often doesn't need to be very long. Occasionally a standard hole saw will do it.


As for moist conditions, let stand on the hard till hull keel joint looks dry, run hole saw, vac up, then run high pressure air into the kerf quite a bit, then pour in acetone, then more air/heat, then more 'tone, etc etc. Make the whole bolt hot and it will dry out fine.
__________________
O you who turn the wheel and look to windward,

Consider Phlebas, who was once handsome and tall as you.
minaret is online now   Reply With Quote
Old 29-01-2016, 10:16   #49
Registered User
 
George P's Avatar

Join Date: Nov 2007
Location: Ft Lauderdale
Boat: Taswell 49
Posts: 82
Re: Keel Bolt / Stud Leaking

Harry Brown, your boat is 2007 bavaria....I'm no expert but from my experience, contact the manufacturer and ask what the torque tension is for tightening the bolts and do it. You boat is young and will not have bolt issues. Please keep in mind that these boats flex in a seaway even at the keel to hull joint. You mention you have intermittent leaks..perhaps this is when your underway in a seaway? This is normal, many production boats leak at the keel bolts....part of the deal for having a bolt on keel.
Tighten the bolts and enjoy your boat, otherwise you'll make yourself crazy trying to fix or improve upon a boat that came out of the factory as good as it will ever be. You're keel will not fall off due to one intermittent leaky keel bolt

If you're worried about the keel falling off then......well.....you're not alone....we all worry about structural stuff like that especially when at sea in big stuff. At the end of the day 'you' have to be comfy and Ok with your boat so do what you have to. I ended up buying a boat with an encapsulated keel......one less thing to worry about.
Cheers
__________________
George P
George P is offline   Reply With Quote
Old 29-01-2016, 10:24   #50
Registered User
 
Muckle Flugga's Avatar

Join Date: Apr 2008
Location: Aboard the Ocean wave
Boat: 55' sloop.
Posts: 1,426
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by minaret View Post
For the record, in this instance I probably don't agree (hard to say for sure without being there in the flesh). Removing this keel would probably cause more damage than is there now. Should be an easy fix without going that route.


Also for the record, 5200 is Of the Devil, and should never ever be used unless you are putting two pieces of wood together you don't want to ever come apart; it's an adhesive not a sealant IMHO. 4000UV and 4200 don't have enough open time for keels IME. I like to use Sikaflex LOT (long open time) for keels. Works great, zero failures, loads of open time, easy cleanup, and you can still remove the keel down the road without too much trouble. NEVER bed a keel in 5200! Unless you want someone down the road to curse your name...
To be fair, and unusually, I had not continued to read the thread before responding. I relegate myself to the sidelines on this one. Tougher than it first appeared, certainly.
__________________
‘Structural engineering is the art of modeling materials we do not wholly understand into shapes we cannot precisely analyse as to withstand forces we cannot properly assess in such a way that the public at large has no reason to suspect the extent of our ignorance.’
Muckle Flugga is offline   Reply With Quote
Old 29-01-2016, 10:26   #51
Registered User

Join Date: Sep 2015
Location: East Med
Posts: 60
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by minaret View Post
usually there is not only no stub but an actual recess in the hull on this type of arrangement. That means the custom "deep" hole saw often doesn't need to be very long. Occasionally a standard hole saw will do it.
I'm assuming this is the same as my hull, it doesn't show a recess in this case.
Attached Thumbnails
Click image for larger version

Name:	Keel.jpg
Views:	128
Size:	173.3 KB
ID:	117888  
__________________
Harry Brown is offline   Reply With Quote
Old 29-01-2016, 10:58   #52
Registered User

Join Date: Sep 2015
Location: East Med
Posts: 60
Re: Keel Bolt / Stud Leaking

I've managed to compress the Bavaria Keel Installation Manual.
I hope no one ever needs it!
Attached Files
File Type: pdf Bavaria Keel Installation Manual.pdf (361.1 KB, 36 views)
__________________
Harry Brown is offline   Reply With Quote
Old 29-01-2016, 10:59   #53
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 4,331
Re: Keel Bolt / Stud Leaking

Looking at the OP picture, the keelbolt is definitely a stud--it also looks like there are two nuts on it.

Exactly how did you confirm that this stud was leaking, if it doesn't leak in the slip?

If there was water seeping in by the stud, the part you showed would be stained rust colored, which it isn't.
__________________
donradcliffe is offline   Reply With Quote
Old 29-01-2016, 11:10   #54
Registered User

Join Date: Sep 2015
Location: East Med
Posts: 60
Re: Keel Bolt / Stud Leaking

It leaks during and after a sail. Stood in the slip it was leaking slowly for about 2 days (1 quart), as the keel settled down. No staining or rust as its only just happened. Boat is 2007.
__________________
Harry Brown is offline   Reply With Quote
Old 29-01-2016, 11:12   #55
Registered User
 
four winds's Avatar

Join Date: Oct 2010
Location: Wandering the US Gulf Coast
Boat: 78 Pearson323 Four Winds
Posts: 2,138
Re: Keel Bolt / Stud Leaking

The trickle of water is visible even in the thumbnail in post 1.

OP states this issue is very recently started.
__________________
Life begins at the waters edge.
four winds is offline   Reply With Quote
Old 24-02-2016, 02:08   #56
Registered User

Join Date: Sep 2015
Location: East Med
Posts: 60
Re: Keel Bolt / Stud Leaking

UPDATE:

Guys,

I was at the boat this weekend.
I need to eat some humble pie!!

I was 100% wrong, you guys were right. The keel bolt is not leaking, it is from elsewhere, (yet to be tracked down, fresh water leak slightly tainted with salt).
This is obviously good news but I am very sorry for wasting everyone’s time and appreciate all the help /advise that I was given.
When I first saw the water around the bolt, I panicked and talked myself into the worst, it really did look like it was coming from the bolt, further investigation proved otherwise.

I also apologize to every other Bavaria owner for muddying the already dirty waters regarding Bavaria keels!

The boat is sound, the keel is sound, and 39 Cruiser is still an amazing yacht!

Thanks again, I’m going to go finish my pie now!!
__________________
Harry Brown is offline   Reply With Quote
Old 24-02-2016, 02:47   #57
Registered User
 
SimonV's Avatar

Join Date: Aug 2007
Location: Brisbane, Australia.
Posts: 1,316
Re: Keel Bolt / Stud Leaking

You idiot . Don't sweat it , it won't be the last time you get that sinking feeling in the pit of your stomach. I guess we have all had similar caniptions.

Sent from my GT-N7105T using Cruisers Sailing Forum mobile app
__________________
Simon

https://svgoodonya.blogspot.com.au/
SimonV is offline   Reply With Quote
Old 24-02-2016, 04:12   #58
Registered User
 
ontherocks83's Avatar

Join Date: Aug 2013
Location: Massachusetts
Boat: Checkmate Strobe 201
Posts: 1,593
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by Harry Brown View Post
UPDATE:

Guys,

I was at the boat this weekend.
I need to eat some humble pie!!

I was 100% wrong, you guys were right. The keel bolt is not leaking, it is from elsewhere, (yet to be tracked down, fresh water leak slightly tainted with salt).
This is obviously good news but I am very sorry for wasting everyone’s time and appreciate all the help /advise that I was given.
When I first saw the water around the bolt, I panicked and talked myself into the worst, it really did look like it was coming from the bolt, further investigation proved otherwise.

I also apologize to every other Bavaria owner for muddying the already dirty waters regarding Bavaria keels!

The boat is sound, the keel is sound, and 39 Cruiser is still an amazing yacht!

Thanks again, I’m going to go finish my pie now!!
Thats Great news! I for one though still want to know where it is coming from. Once you track it down let us know. Your find is still a good mental note to put in the tool box to use some day.
__________________
-Si Vis Pacem Para Bellum
-Molon Labe
ontherocks83 is offline   Reply With Quote
Old 24-02-2016, 04:27   #59
Moderator
 
HappyMdRSailor's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: North Mississippi
Boat: 48 Wauquiez Pilot Saloon-C22 Chrysler Sunpiper- 19 Potter-Preparing to cruise w/my girl
Posts: 5,980
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by Harry Brown View Post
UPDATE:

Guys,

I was at the boat this weekend.
I need to eat some humble pie!!

I was 100% wrong, you guys were right. The keel bolt is not leaking, it is from elsewhere, (yet to be tracked down, fresh water leak slightly tainted with salt).
This is obviously good news but I am very sorry for wasting everyone’s time and appreciate all the help /advise that I was given.
When I first saw the water around the bolt, I panicked and talked myself into the worst, it really did look like it was coming from the bolt, further investigation proved otherwise.

I also apologize to every other Bavaria owner for muddying the already dirty waters regarding Bavaria keels!

The boat is sound, the keel is sound, and 39 Cruiser is still an amazing yacht!

Thanks again, I’m going to go finish my pie now!!
Quote:
Originally Posted by ontherocks83 View Post
Thats Great news! I for one though still want to know where it is coming from. Once you track it down let us know. Your find is still a good mental note to put in the tool box to use some day.
With all this talk of paranoia, panicking, and eating humble pie... the leak could really only be one thing...

Your bong has been knocked over...

And you sound a little "over-enthusiastic" not to have been contacted by the Bavaria legal department!
__________________
In the harsh marine environment, something is always in need of repair...

Mai Tai's fix everything...
HappyMdRSailor is offline   Reply With Quote
Old 24-02-2016, 06:43   #60
Registered User

Join Date: Sep 2015
Location: East Med
Posts: 60
Re: Keel Bolt / Stud Leaking

Quote:
Originally Posted by HappyMdRSailor View Post
With all this talk of paranoia, panicking, and eating humble pie... the leak could really only be one thing...

Your bong has been knocked over...

And you sound a little "over-enthusiastic" not to have been contacted by the Bavaria legal department!
We all make mistakes! I put my hand up and came clean, honesty is the best policy! I could have just slid back into my hole and never seen again!
__________________

__________________
Harry Brown is offline   Reply With Quote
Reply

Tags
keel

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Suitable metal for replacement keel bolt in cast iron keel? OrangeCrush Monohull Sailboats 43 20-04-2016 20:25
Keel J bolt replacement in lead keel funjohnson Construction, Maintenance & Refit 24 15-01-2015 05:11
Cable Lug Stud Size Rating US1Fountain Electrical: Batteries, Generators & Solar 9 16-02-2011 14:45
Keel Leek Fix / Keel Bolt Questions brianontheroad Construction, Maintenance & Refit 11 16-06-2010 19:39



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:19.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.