I've taken the mast down, had the bolt tightened...now I am going to find time to fix the "smile"...
On Mon, Jun 24, 2019 at 3:58 PM dwight veinot via CnC-List < cnc-list@cnc-list.com> wrote: > Do the whole fix, not just cosmetic, you will be happier next season > > On Mon, Jun 24, 2019 at 3:52 PM General Gao via CnC-List < > cnc-list@cnc-list.com> wrote: > >> I've spoken to the yard and decided to take the mast down to tighten all >> the bolts, then I will do the cosmetic fix. >> >> This will also give me a chance to inspect the mast, hopefully no >> surprises there! >> >> I find that my radio seems to have very short range, the cable and the >> antenna may have been the original, should I consider changing the cable >> and antenna? >> >> Thank you. >> >> On Sun, Jun 23, 2019 at 11:54 AM Shawn Wright via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> Also check the mast step (under the cast plate which the mast sits on), >>> as the previous owner of our '74 35 mk2 said that it was an oak block which >>> had rotted away, and resulted in the forward most keel studs not holding >>> torque on the keel. He dug it out and poured concrete in place of the >>> block, with a stainless pipe through it for drainage. This was in 2003, and >>> when I hauled her this spring, there was no sign of movement at the keel >>> joint, although I did choose to epoxy over the joint instead of replacing >>> the flexible sealant he had used. >>> -- >>> Shawn Wright >>> shawngwri...@gmail.com >>> S/V Callisto, 1974 C&C 35 >>> https://www.facebook.com/SVCallisto >>> >>> >>> On Sun, Jun 23, 2019 at 8:28 AM dwight veinot via CnC-List < >>> cnc-list@cnc-list.com> wrote: >>> >>>> Looks very similar to what i repaired on my 35 MKII using a very >>>> similar procedure to that described by Dennis Connor. Yes there is 1 keel >>>> bolt under the mast and yes torque the nuts to the specs listed on the cnc >>>> photoalbum site for the 35 MKII as the first step. Also replace the backing >>>> plates and bedding compound. Drill and tap holes in each new backing plate >>>> to provide a covenient means to connect ground wires while you are at it. >>>> Grind out the crack and grind the sump down past the gelcoat for about 3 >>>> inches up and clean the lead keel down to bare metal. Blow the grinding >>>> debris fro the crack, wash all surface with acetone and apply a layer of >>>> non thickened West System epoxy to the cleaned and dried sufaces with a >>>> small wire brush. Then use thicked epoxy putty to fill the gap level and >>>> immediately apply a layer of glass matt just wide enough to cove the gap >>>> and smooth that out to release any entrapped air. Then lay on more >>>> thickened epoxy and apply a layer of glass matt about 2 inches wide and >>>> smooth out as before. Then another layer of thickened epoxy andglass matt 3 >>>> to 4 inches wide sooth out as for the others and then one more layer about >>>> 4 inches wideand amooth out covering with thickened epoxy. Grind the cured >>>> product to remove obvious bumps and then fsir to a smooth surface with >>>> lightweight auto body filler or other fairing compound. Prime and apply >>>> bottom paint. I will send you a photo of my result if you wish. >>>> >>>> On Sun, Jun 23, 2019 at 11:01 AM Josh Muckley via CnC-List < >>>> cnc-list@cnc-list.com> wrote: >>>> >>>>> That looks like it could have resulted from the combined effect of >>>>> loose bolts AND a grounding event. I definitely think it needs additional >>>>> attention. >>>>> >>>>> I would do the "normal" repair. Tighten/check tight the keel bolts, >>>>> excavate, fill, glass(maybe), fair. >>>>> >>>>> Have you had a chance to investigate for water ingress around any of >>>>> the bolts? Can you or has anybody done a structural inspection? What >>>>> happens during a grounding is that when going forward the keel acts as a >>>>> lever arm and crushes into the hull at the trailing edge of the keel. >>>>> Compression damage to both the hull and keel may be evident in this area. >>>>> >>>>> Some people suggest to use the flexible material to fill the gap >>>>> because the keel is likely to flex when heel over, is that a perception or >>>>> a fact? >>>>> >>>>> Original construction used a layer of 5200, 4200, or butyl tape on the >>>>> joint. The joint was then faired with a low density fairing compound. >>>>> Often times what owners see is years of bottom paint and the fairing >>>>> material chipping out in a straight line that extends from leading edge to >>>>> trailing edge on both sides. This is a typical smile. Sometimes it is >>>>> natural and unavoidable cantilever flexing. Sometimes it is loose-ish >>>>> bolts that allow for the cantilever flex. Yes, instead of a low density >>>>> fairing compound a tougher material is in order. Notice I didn't say >>>>> stronger or harder. Toughness is the opposite of brittle. IMO the west >>>>> systems G-Flex line of products fits this description. If I was in need >>>>> of >>>>> dropping the keel I would probably still use 5200 to seal the joint but >>>>> then simply fill with G-Flex as described in the article that I linked >>>>> previously. >>>>> >>>>> Also, do you need to raise the mast to tighten the bolt? I am under >>>>> the impression that one bolt is hidden under the mast. >>>>> >>>>> I had 2 bolts under the foot of my mast (C&C 37+). You should >>>>> probably expect at least one. You may be able to engineer a mechanism for >>>>> tightening the bolt without pulling the mast but ultimately I think you >>>>> will spend more time and money. Just coordinate with the yard to use >>>>> their >>>>> travel lift to haul and block the boat in preparation for the repairs. >>>>> Make sure that they can reach the mast with their crane. Once the lift >>>>> sets the boat on the keel arrange for the crane to lift the mast. It >>>>> doesn't have to be removed - just lifted a foot or two. Of course there >>>>> are lots of maintenance items that you could coordinate during a complete >>>>> mast removal. >>>>> >>>>> My yard is saying I need to do all this in travel lift, is this >>>>> necessary? >>>>> >>>>> Yes, the weight of the boat should be compressing the joint while >>>>> tightening the bolts. Some listers have argued that the amount of tension >>>>> created by a single bolt at the correct torque exceeds the weight of the >>>>> keel many times over. I say, if you need to get to the bolt under the >>>>> mast >>>>> anyway and you need to fill and fair and paint the keel anyway then you >>>>> need the travel lift. If you wanted to experiment or practice on the >>>>> accessible bolts while the boat was in the water then it is unlikely that >>>>> you would harm anything. >>>>> >>>>> Preparation is going to be the key to an expeditious repair. There >>>>> are lots of tools and correct sized sockets needed as well as a yard that >>>>> has the ability and willingness to coordinate with you for the use of >>>>> their >>>>> equipment. I haven't even touched on the tools, equipment, and >>>>> consumables >>>>> needed for the fill, fair, and paint. >>>>> >>>>> Keep the questions coming. >>>>> >>>>> >>>>> Good luck, >>>>> >>>>> Josh Muckley >>>>> S/V Sea Hawk >>>>> 1989 C&C 37+ >>>>> Solomons, MD >>>>> >>>>> >>>>> >>>>> On Sun, Jun 23, 2019, 9:12 AM General Gao via CnC-List < >>>>> cnc-list@cnc-list.com> wrote: >>>>> >>>>>> It turns out my email last night was rejected due to size. Here is >>>>>> the link to the picture of "my smile"... >>>>>> >>>>>> >>>>>> https://drive.google.com/file/d/0B4sBNcSIFFFGYkRPU1IxNFdSbHhEUUFoZjZnVVZOSV9mMlM4/view?usp=sharing >>>>>> >>>>>> Thank you guys for sharing the information. It is very much >>>>>> appreciated. My email last night had two questions: >>>>>> >>>>>> Some people suggest to use the flexible material to fill the gap >>>>>> because the keel is likely to flex when heel over, is that a perception >>>>>> or >>>>>> a fact? >>>>>> >>>>>> Also, do you need to raise the mast to tighten the bolt? I am under >>>>>> the impression that one bolt is hidden under the mast. >>>>>> >>>>>> Seems to have been answered by you already. >>>>>> >>>>>> My yard is saying I need to do all this in travel lift, is this >>>>>> necessary? >>>>>> >>>>>> Thank you again! >>>>>> >>>>>> On Sun, Jun 23, 2019 at 6:19 AM dwight veinot via CnC-List < >>>>>> cnc-list@cnc-list.com> wrote: >>>>>> >>>>>>> I have a 35 MKII and i repaired the smile on my boat pretty much the >>>>>>> same way as Dennis described. However i only repaired the forward end >>>>>>> of >>>>>>> the smile back for about 2 feet on each side. I did that 1 full year >>>>>>> ago so >>>>>>> the boat has experienced only one winter of freeze/thaw cycles here in >>>>>>> Nova >>>>>>> Scotia and a full season of sailing. No smile any longer on the boat >>>>>>> but a >>>>>>> big smile on my face...mission accomplished >>>>>>> >>>>>>> On Sun, Jun 23, 2019 at 1:02 AM Josh Muckley via CnC-List < >>>>>>> cnc-list@cnc-list.com> wrote: >>>>>>> >>>>>>>> I wanted to share this article with you in my previous email but >>>>>>>> forgot. >>>>>>>> >>>>>>>> >>>>>>>> https://drive.google.com/file/d/0B8pEh5lnvP1yV1JEN3YxQk1RbHc/view?usp=drivesdk >>>>>>>> >>>>>>>> Josh Muckley >>>>>>>> S /V Sea Hawk >>>>>>>> 1989 C&C 37 + >>>>>>>> Solomons, MD >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Sat, Jun 22, 2019, 9:51 PM General Gao via CnC-List < >>>>>>>> cnc-list@cnc-list.com> wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> >>>>>>>>> I am a new C&C 35 Mk2 owner, and I am a new owner of a sailboat in >>>>>>>>> general. The yard is telling me the "smile" on my boat is a bit >>>>>>>>> excessive. >>>>>>>>> Sailors on the Sailnet suggested me to post my question on here to >>>>>>>>> get more >>>>>>>>> accurate suggestions. So here I am. >>>>>>>>> >>>>>>>>> Some people suggest me to tighten the bolt, or even drop the keel >>>>>>>>> to fix it for the long term; some suggested it is just appearance and >>>>>>>>> no >>>>>>>>> structural concern, and "filling" or "patching" the smile is part of >>>>>>>>> regular annual maintenance for this boat. >>>>>>>>> >>>>>>>>> I am seeking advice from people with experience on this model or >>>>>>>>> similar C&C boat in construction (solid FG hull and swing back keel). >>>>>>>>> >>>>>>>>> What would you recommend? >>>>>>>>> >>>>>>>>> Thank you in advance. >>>>>>>>> >>>>>>>>> Bo >>>>>>>>> _______________________________________________ >>>>>>>>> >>>>>>>>> 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 >>>>>>> _______________________________________________ >>>>>>> >>>>>>> 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 >>>>>> >>>>>> _______________________________________________ >>>>> >>>>> 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 >>>> _______________________________________________ >>>> >>>> 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 >>> >>> _______________________________________________ >> >> 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 > _______________________________________________ > > 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
