I have heard of one case where concrete was used to fill the void under the mast step
On Fri, Aug 28, 2020 at 10:55 AM Dave S via CnC-List <[email protected]> wrote: > I should be clearer - By epoxy glass I mean a dense layup vs filled > putty. That said I don’t know the deflection data For each material etc > etc etc but I do know that my 33-2 wedges are not used on all the bolts > and where not, the compression bears on the layup via a fender washer. > This suggests the layup adequately resists compression, and that the AL > wedges are there as wedges only to address the slope of the bilge. > Filled putty? Agree completely, it’s the wrong stuff. > > Dave > > Sent from my iPhone > > On Aug 27, 2020, at 9:03 PM, Josh Muckley <[email protected]> wrote: > > > > Alan, > > Epoxy and glass is a bit different than G10 (which is technically > fiberglass and epoxy.) The rated compression and deflection strength are > competitive with any other material. Especially when you get to the 1/2 > inch thickness. > > No? > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Thu, Aug 27, 2020, 18:35 ALAN BERGEN via CnC-List < > [email protected]> wrote: > >> Don't use epoxy/glass to replace the wedges. There's tremendous pressure >> on them when the keep bolts are tightened, and they won't hold up. Have >> them made out of stainless. >> >> Alan Bergen >> 35 Mk III Thirsty >> Rose City YC >> Portland, OR >> >> >> >> On Thu, Aug 27, 2020 at 2:31 PM Dave S via CnC-List < >> [email protected]> wrote: >> >>> Plenty of detail on keel work here- mine and others. >>> >>> >>> https://cncwindstar.blogspot.com/p/c-33-mk-ii-keel-and-mast-step-work.html?m=1 >>> <https://urldefense.com/v3/__https://cncwindstar.blogspot.com/p/c-33-mk-ii-keel-and-mast-step-work.html?m=1__;!!LIr3w8kk_Xxm!9-CDindOcxAQN2R4qFnUPdZ3BJMEv42YRT5k_1ajVsg1sQAYGHOmVyV9bid3QAL4Zqg$> >>> >>> I think any sense epoxy/glass would be fine to replace the wedges. >>> >>> You can also use ‘tack tape’ reversed to protect the bolts. One >>> advantage of this vs wax is you can build layers for clearance. >>> >>> Good luck with the project! >>> >>> Dave >>> 33-2 (same dna as the 35-3) >>> >>> Sent from my iPhone >>> >>> On Aug 27, 2020, at 2:10 PM, David Swensen <[email protected]> >>> wrote: >>> >>> >>> >>> >>> Fellow listers, >>> I have moved Freya to my backyard and started work on the keel hull >>> joint. She has on the hard for about 4 weeks. I opened up thekeel hull >>> joint and have raised the hull a few inches. The forward bolt is still >>> draining ( and it smells?). >>> The most aft bolt is the one that was leaking enough to set off my bilge >>> pump every 4 minutes. The inside of the hull was compressed under the >>> washers on this bolt. I think this will need to be ground out and filled >>> I have added a link to some pictures. >>> >>> https://photos.app.goo.gl/uoZHWJbR2jH8Wb6F6 >>> <https://urldefense.com/v3/__https://photos.app.goo.gl/uoZHWJbR2jH8Wb6F6__;!!LIr3w8kk_Xxm!9-CDindOcxAQN2R4qFnUPdZ3BJMEv42YRT5k_1ajVsg1sQAYGHOmVyV9bid3gOVC0L8$> >>> >>> >>> My questions: >>> >>> I cannot lift the hull entirely off of the keel. Any suggestions on how >>> to repair the compressed area without epoxy bonding to the bolt? I was >>> planning on a 1/2 inch G10 backing plate before putting the washers on. >>> >>> It looks like I will need to excavate the space under the mast step. It >>> feels and sounds solid, but apparently there is water inside, because it is >>> still draining. What is the best material to fill this space? >>> >>> Two of the middle bolts had aluminum wedges under the washers because of >>> the angle of the keel sump. One was corroded to dust. There was not much >>> left of the other. Can I use G10 to replace these, or should I have them >>> fabricated from stainless steel?. >>> >>> One of the pictures shows the placement of the jackstands. I am open to >>> input on their placement. Is it sufficient to hold the hull for an extended >>> time? >>> >>> Thanks for any input. >>> >>> David Swensen >>> Freya 35 MK 3 >>> On the Hard in Beverly, MA >>> >>> >>> >>> >>> _______________________________________________ >>> >>> >>> >>> >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- >>> https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!9-CDindOcxAQN2R4qFnUPdZ3BJMEv42YRT5k_1ajVsg1sQAYGHOmVyV9bid3sMbbqTc$ >>> >>> >>> >>> >>> >>> >> >> _______________________________________________ >> >> >> >> >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> >> >> >> >> > > _______________________________________________ > > > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > > > -- Sent from Gmail Mobile
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