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05-10-2020, 15:07
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#1
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Registered User
Join Date: Apr 2014
Location: Palm Beach, FL
Boat: C&C MK1 30'
Posts: 27
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Deep hole under mast step
Hi everyone!
I’m replacing my step of the mast in my 1973 C&C 30 MK1
There is a deep pit underneath that is below and forward of the keel bolts and bilge.
It’s look like it was an original design but seems crazy because water can just pool there, out of reach of my bilge. I’ve attached a couple pictures.
Any insight or advice?
I’m keen to just fill with fiberglass.
Best,
Ryan
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05-10-2020, 15:22
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#2
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,514
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Re: Deep hole under mast step
I wouldn't fill it with glass, someone may need to get to that bolt sometime. Put a coating of something to waterproof it if you want maybe.
Boy those underfloor bulkheads are sure delaminated!
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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05-10-2020, 15:29
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#3
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Registered User
Join Date: Apr 2014
Location: Palm Beach, FL
Boat: C&C MK1 30'
Posts: 27
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Re: Deep hole under mast step
haha I’m replacing those too
The bolt on the right side is the last bolt. The now infamous pit is to the left (it’s deeper than it looks in the picture) and forward of said bolt so no need to access it unless there’s something I’m not thinking of ��
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05-10-2020, 15:37
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#4
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,514
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Re: Deep hole under mast step
Quote:
Originally Posted by beckettnole
haha I’m replacing those too
The bolt on the right side is the last bolt. The now infamous pit is to the left (it’s deeper than it looks in the picture) and forward of said bolt so no need to access it unless there’s something I’m not thinking of ��
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Oh, I see. Yeah, I suppose you can just fill it with small pieces of glass and resin or epoxy
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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05-10-2020, 15:55
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#5
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Registered User
Join Date: Oct 2014
Location: Bay of Fundy,Grand Manan,N.B.,Canada N44.40 W66.50
Boat: Mascot 28 pilothouse motorsailer 28ft
Posts: 3,256
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Re: Deep hole under mast step
__________________
My personal experience & humble opinions-feel free to ignore both
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06-10-2020, 08:38
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#6
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Registered User
Join Date: Sep 2010
Location: Boat in Greece
Boat: Lagoon 400
Posts: 1,432
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Re: Deep hole under mast step
Something I do not understand. You replace the keel bolt, good. But how can you ensure that there will never be a need to access it again? Or you plan to fill only the area to the left (in the picture) and leave the bolt exposed? This will be fine.
Still, it is interesting, what was the original purpose of this depression in the bottom of the boat.
__________________
Mark, S/Y Bat-Yam
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06-10-2020, 09:01
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#7
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Senior Cruiser
Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 49,362
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Re: Deep hole under mast step
C&C used a keel stub/sump:
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"
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06-10-2020, 10:52
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#8
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Registered User
Join Date: Dec 2014
Posts: 311
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Re: Deep hole under mast step
Just basing off the pictures, I believe that it provides a collection point LOWER than the exposed keel bolts - keeping them out of water sitting down there. After cleaning it all up and a nice epoxy finish, I’d put a bilge pump down there, (or the pick-up of a remote one if it can’t be easily accessed after mast is stepped). Keeps your bolts from sitting in any bilge water.
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07-10-2020, 19:41
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#9
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Registered User
Join Date: Oct 2013
Location: Lake City MN
Boat: C&C 27 Mk III
Posts: 2,647
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Re: Deep hole under mast step
Quote:
Originally Posted by GordMay
C&C used a keel stub/sump:
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Yeap that’s mine on the right but no real low spot as a place to pull water from
__________________
Special knowledge can be a terrible disadvantage if it leads you too far along a path that you cannot explain anymore.
Frank Herbert 'Dune'
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