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 Does this keel look OK?		  New Topic  Topic Locked
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pastmember
Master Marine Consultant

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2402 Posts
Response Posted - 04/23/2012 :  11:28:38  Show Profile
Search for the Leon Sisson thread about replacing the hanger mounting plate in the boat. I believe he had to cut it out from inside. BTW, Leon Sisson was and is my "standard" and I have never met it.
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Chakana
1st Mate

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USA
62 Posts
Response Posted - 04/25/2012 :  16:06:05  Show Profile  Visit Chakana's Homepage
I finally have some good news! There were 3 seized bolts, (#4 wasn't even tight). Charley was able to get one of them drilled out today! I'm so freaking happy. He first had to use a blow torch (hope I'm using the correct terms here) to get the heads off the bolts. Then dropped the keel. Then used some kind of grinder to remove the exposed bolt. Then used the smallest cobalt left handed drill bit into the center of the piece of bolt. Then progressively larger bits until it was all out. YAY!!!! It took all day but who cares! Now I will really celebrate when the other two are out. But this is a huge breakthrough.
Thank you guys for everything! I'll be posting pictures soon.
Anna
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delliottg
Former Mainsheet C250 Tech Editor

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USA
4479 Posts
Response Posted - 04/25/2012 :  17:12:04  Show Profile  Visit delliottg's Homepage
Congratulations! Nice to hear you guys are on your way to a fix.

A word of warning regarding what may or may not be Marine Tex on the keel. If it is some sort of epoxy putty and got hot from the torch, it may have compromised it's strength. Epoxy putty is incredibly strong, until you heat it past about 325ยบ or so. See Marine Tex FAQ [url="http://www.jamestowndistributors.com/userportal/document.do?docId=581&title=Marine+Tex+Frequently+Asked+Questions"]here[/url]. A propane torch can easily reach temperatures of five+ times that.
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pastmember
Master Marine Consultant

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2402 Posts
Response Posted - 04/25/2012 :  17:26:48  Show Profile
I am glad you are happy, I am terrified. Are there any threads left in the plate?
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Chakana
1st Mate

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USA
62 Posts
Response Posted - 04/25/2012 :  18:41:02  Show Profile  Visit Chakana's Homepage
The threads appear to not be damaged at all. There was a thin bit of bolt left in the threads, but he gently got this out little by little with the thread tapper thing (I was watching/supervising like only a wife can do). The new bolt fits in perfectly. I do see your point though. I will tell him to be very very careful.
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pastmember
Master Marine Consultant

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2402 Posts
Response Posted - 04/26/2012 :  06:56:10  Show Profile
It would be best if you can continue to use stock hardware. I am glad it is going well.
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OJ
Master Marine Consultant

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USA
4382 Posts
Response Posted - 04/26/2012 :  07:47:58  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Chakana</i>
<br />. . . There was a thin bit of bolt left in the threads, but he gently got this out little by little . . .
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">That's some pretty darn precise drilling from such a awkward position. Good for you!

Any idea just how hot the bolts got when you put the torch to them?

You are coating the new bolts to prevent seizing in the future?
Edited by - OJ on 04/27/2012 07:54:33
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Chakana
1st Mate

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USA
62 Posts
Response Posted - 04/28/2012 :  19:07:13  Show Profile  Visit Chakana's Homepage
Not sure how hot the bolts got when being torched, but I do know it caused the fiberglass to smoke a little bit, up inside the trunk. I completely freaked out--thinking they (Charley and his friends/helpers) were burning down my boat. They stopped and got the air compressor and blew it up there and everything was OK--except for I was about to throw up. Nothing appears to be damaged.
We purchased the replacement kit from CD, it comes with coating for the new bolts.
We have dulled all our cobalt bits. Almost done with hole #3. No where in town sells them. We order from Grainger, they come in the next day. Maybe somewhere would sharpen them, I don't know.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.