Replacement 21 keel (Macgregor) - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 17 Old 04-26-2006 Thread Starter
Junior Member
 
Join Date: Apr 2006
Location: Incline Village
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Replacement 21 keel (Macgregor)

I am looking at an old (68) Macgregor 21 as a project boat to get my kids interested in sailing.
I can probably get the boat for a song, but....... it has a cracked keel. Is this something i can reclad in glassfibre, or do i need to get a new cast keel???
Either way I would appreciateadvice on
1 how to reclad
2 where to get a new one, and what the price might be. I Am in the Tahoe area (Nevada side)
Jolley Roger is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 17 Old 04-26-2006
Senior Member
 
Join Date: May 2002
Posts: 2,681
Thanks: 6
Thanked 31 Times in 29 Posts
Rep Power: 14
 
I assume the keel is cast iron, and that the rough spots are smoothed over with epoxy. If so, then the epoxy is probably loose and splitting. If that describes the problem, then you first have to remove all the loose material. Tap all over the keel with a hammer. If the material is securely attached to the iron, it will have a more bell-like ring. If it's loose, it'll have a dull sound. Mark the loose areas with a piece of chalk. Then use a cold chisel to cut out all the loose material. Don't cut away any more than you have to. You can easily make it a bigger job than necessary. Use a wire brush fitting on your drill to clean the rust off any exposed cast iron. As soon as you finish wire brushing, coat the exposed iron with Rustoleum, just to keep it from oxidizing until you get to the next step. Then coat all the exposed areas with 2-3 coats of VC Tar, to seal out moisture. Then fill all the exposed areas with Interlux Watertite, which is an epoxy designed specifically for use on underwater surfaces. Apply it as smoothly as you can with the applicator, because it's hard to sand it down. If you put on too much, I've found that a 4 1/2 " angle grinder will cut it down much faster than any type of electric sander. Then coat the whole keel with one more coat of VC Tar, followed by your choice of antifouling paint. Finally, I suggest you put a zinc or magnesium anode on the keel, just to ensure that stray electrical currents won't cause a reaction that will lift or loosen the epoxy.

Before you start, you should probably strip all the old antifouling paint off the keel. There's a paint stripper that is designed specifically for stripping paint off of fiberglass cars, such as Corvettes. You usually can't get it at car parts places, such as Auto Zone. You have to go to a specialty store where body shops buy their paint supplies.

While you're doing that job, you should probably replace the keel raising cable and pivot, and any other suspect parts. The parts shouldn't be too expensive, and there's no way of knowing how long it has been since it was done last.

It sounds like a nice project that the kids will enjoy.
Sailormon6 is online now  
Quote Quick Reply Share with Facebook
post #3 of 17 Old 04-26-2006 Thread Starter
Junior Member
 
Join Date: Apr 2006
Location: Incline Village
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thanks for the detailed reply.
I spoke with Bill at Macgregor today. He told me that this particular keel was fabricated from steel and then had 2 contoured glass fibre shells bonded to the steel structure. He suggested that from the sound of my discription water had permeated the interior, caused the steel to oxidise and expand and this had most probably caused the cracks. He did not think a repair would be possible. UnfortunatelyMacgregor do not have replacements and he said that it is usually a broken keel which end the life of this boat. So I'm now wondering if I should even get this boat hauled into my yard. He is faxing over a print of the keel and suggested that i could get one fabricated from steel plates, and then coat it with glass fibre. I'm just a little concerned that this could end up looking like a dogs dinner, to say nothing of the cost of getting it fabricated.
He did tell me that any keel from a Mac 21 would fit so if I could find one I would be ok. However, I have not been able to turn any up on the web....yet.
Does anyone have any contact with a boat scrap yard!?!?!?
Jolley Roger is offline  
Quote Quick Reply Share with Facebook
post #4 of 17 Old 05-03-2006
Junior Member
 
Join Date: May 2006
Location: Long Beach
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Hi All,
I was the proud owner of a 1978 Macgregor 21 that has been in storage for 14 years, great shape, bought for only $500.00. I was much to green and excited to heed the seller warning of chipping occurring on the bottom of the keel. Unlike Jolly Roger's issue my problem is at the very bottom of the keel as extended and is crumbling rather than cracking. Not sure if keel is steal or cast.

Wanta sail, please help me.
Jim
catalina3899 is offline  
Quote Quick Reply Share with Facebook
post #5 of 17 Old 05-19-2006
Junior Member
 
Join Date: Jul 2000
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Smile Help is Here

I have repaired 2 of the glass /steel keels and both are doing fine today.
It is a job that can be done rather less $ if you want to put in the time.
Those that would like to follow the process .please get hold of me of the list . It is a long writting. IF not I can shorten it up to post here if you like. Most is common sence , use of readly available materials and your time.
It can be done and does not have to cost alott to get you the water.

paul
woodenu is offline  
Quote Quick Reply Share with Facebook
post #6 of 17 Old 07-31-2006
Junior Member
 
Join Date: Jul 2006
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
venture 22

keel on my v-22 is very rough. need ot be faired. please forward info. tks david minix. At da_omalley@yahoo.com
davidminix is offline  
Quote Quick Reply Share with Facebook
post #7 of 17 Old 11-13-2006
Junior Member
 
Join Date: Jan 2006
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
i'm in texas and just got a 1969 venture that seems to have an ok keel but if you dont mind i'd like to get that info on refinishing the cb. thanks john b jhnblngr@yahoo.com
jhnblngr is offline  
Quote Quick Reply Share with Facebook
post #8 of 17 Old 12-07-2006
Junior Member
 
Join Date: Dec 2006
Location: Homestead, FL
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
I'm afraid that I would have to disagree with Mr. MacGregor. Almost anything can be repaired with the right tools, a little forethought, and a lot of patience. I have a 22' MacGregor and am just beginning a restoration on it. It will need the keel rebuilt along with just about everything else. Here is a link to some information on keel repair.

http://www.macgregor-boats.com/gilbert/external.html
ranrush is offline  
Quote Quick Reply Share with Facebook
post #9 of 17 Old 05-07-2008
Junior Member
 
Join Date: May 2008
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Unhappy

WOODENU --- in your post that you said you had experience in repairing cast iron or steel keels... i have a macgregor 17 1968.. great condition. except for the swing keel... the end of it is cracking length ways.. like a hotdog bun... im more than wiling to put in the time and effort in fixing this, but dont really know how to go about doing it... i could email you some pictures of it if you're interested in seeing it... any information, tips, or ideas you could give me would be greatly appreciated.. thank you for your time in reading this...
DayStar04 is offline  
Quote Quick Reply Share with Facebook
post #10 of 17 Old 12-02-2009
Junior Member
 
Join Date: Dec 2009
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Venture222 keel repair

Dear Woodenu

Yet another Venture owner needing help on the repair process of this swing keel. Any help on the removal and repair process is much appreciated!
sailormac2 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Info on BENETEAU FIRST 405 1987 rockietopman Boat Review and Purchase Forum 8 06-15-2011 12:18 PM
Wing, fin, or bulb...what are the trade offs? langousta Gear & Maintenance 17 09-17-2008 04:54 PM
reducing keel/adding fin? abacosol Gear & Maintenance 9 07-01-2007 09:32 PM
25'' MacGregor Iron Keel Pattern deralm Gear & Maintenance 4 07-26-2003 03:55 PM
Winged Keels Pros & Cons OldGlory Boat Review and Purchase Forum 13 04-09-2002 05:51 PM

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome