Another thought, and this may seem like a silly question - has the boat been modified in any way? Any structure removed?
Sent from my iPhone > On Mar 18, 2022, at 7:50 PM, Dave S <syerd...@gmail.com> wrote: > > Curious. If the hull is solid glass or cored and sound I’d tackle a diy > repair without hesitation, provided you are handy and are either willing to > learn about the techniques and material involved or have a knowledgeable > friend who can help. There are many here who can help identify well > intentioned bad advice. > HOWEVER- is this hull balsa cored below the waterline? One very nasty > possible hypothesis is that the keel support structures- transverse ‘floors’ > (beams) and bulkheads are bonded to the inner skin of a failed cored hull. > This (I’d imagine) might cause what you are describing. > Now that I’ve scared you I’ll say I have no idea how the 25-2’s hull is > built, but this does fit the description. Even that could be fixed but it > might be an involved and complex job, again depending on how the boat is > built. > > Dave 33-2 windstar > > Sent from my iPhone > >>> On Mar 18, 2022, at 7:32 PM, Stephen Kidd via CnC-List >>> <cnc-list@cnc-list.com> wrote: >>> >> >> Greetings, >> >> I wanted to give an update on the keel wobble on our 25 MKII. It took a >> while for us to get our ducks and the weather in a row, but it gave us time >> to do a lot of reading and research following the leads provided through the >> list. As our next step in investigating the keel wobble, we tightened the >> bolts and checked the keel with the boat in slings. Torquing the bolts went >> smoothly using a torque wrench, torque multiplier and an extra deep socket. >> Before tightening, we backed them up a little, and they all budged with >> between 100 - 150 ft/lbs of torque on the wrench. We were able to torque the >> keel bolts to 350 ft/lbs, and there was no indication of the bolt spinning >> or washers digging into the glass. >> >> We then had the boat lifted in slings, and the keel continued to flex with a >> moderate push with a foot. At this point, I noticed that the flex wasn't >> between the keel and the hull (that was encouraging!), but it was the entire >> hull flexing. I then climbed aboard and asked the very accommodating marina >> manager to wiggle the keel, which he did with vigor. The entire bottom of >> the bilge visibly flexed. Interestingly to me, the keel bolts didn't appear >> to move relative to the rest of the hull, everything was in it together. The >> hull/keel joint actually seems pretty solid, so I am glad that we took this >> step before dropping the keel. The hull flexing is something we should have >> caught right away, but we looked right past it because we assumed it was the >> hull/keel joint. >> >> Even if the hull/keel joint is off the hook for the wobble, from past >> discussions on this list and elsewhere, I suspect this is not a good >> finding. We have seen cases where people have made significant and >> impressive structural repairs, many of which have been referenced here on >> the list, to increase rigidity. The both of us carefully inspected the bilge >> area for signs of cracking or separation, and we have not identified >> anything obvious (untrained eyes). Thus, we would not know what to fix were >> we to go that route. The marina manager is similarly at a loss. I'm also not >> comfortable not knowing why the hull is visibly flexing. At the same time, >> several sailors at the marina suggested that she's probably fine and we >> should just go sailing and keep an eye on it. As tempting as that is, that's >> beyond our comfort zone. >> >> So, that's the general outcome of the wobbly keel investigation. I do have a >> question: Is this a repair that a reasonable person would be able to take >> on? I'm not sure that person would be me, but I do not want to scrap a boat >> that someone could make good use of. Afterall, she has been an incredible >> boat for us and is undeniably an adorable 25' C&C. >> >> Many thanks, >> Stephen >> >>>>>> >>>>>> >>>>>> >>>>>>> On Sun, Jan 2, 2022 at 3:32 PM Stephen Kidd via CnC-List >>>>>>> <cnc-list@cnc-list.com> wrote: >>>>>>> >>>>>> Happy New Year! We're hoping to get some insights on an issue we are >>>>>> having with our keel. We recently had our 25 MKII hauled for some winter >>>>>> projects and were surprised to see that the keel "wiggled" when the boat >>>>>> was on the travel lift, a little bit laterally. >>>>>> >>>>>> >>>>>> >>>>>> I've uploaded some photos of the keel and the keel bolts. Here are some >>>>>> observations: >>>>>> >>>>>> 1) No signs of weeping from the keel joint and no visible separation >>>>>> when lifted from the stands. >>>>>> >>>>>> 2) None of the keel bolts (3 in total) leak. >>>>>> >>>>>> 3) Crack at the aft end doesn't look typical of the C&C smile based on >>>>>> internet searches. >>>>>> >>>>>> >>>>>> >>>>>> Should we torque the keel bolts, grind out the crack, fill (G-flex?), >>>>>> fair, and paint, or is this beyond a "smile" fix? >>>>>> >>>>>> >>>>>> >>>>>> Thanks! >>>>>> >>>>>> Stephen >>>>>> >>>>>> >>>>>> >> Please trim your messages before sending to the list. Thankx
Please trim your messages before sending to the list. Thankx
