Here's my write up, from when the repair was done many years ago: Dropped the keel. Flushed out the keel bolt holes. The forward bolt hole (which was under the mast) had a void around it, and a terrible smell when it was flushed out. The yard ground the surface of the keel and the stub, filled the void with a gallon of epoxy (yes, a gallon), and epoxied the keel to the stub. New washers were fabricated (large square stainless, tapered so that the old washers and nut would lay flat against the new washers). The old washers were replaced with the newly fabricated washers, and then placed on top of the new washers with the nuts torqued to spec. Finally the smile was covered with fiberglass and epoxy. After more than ten years, the smile hasn't returned, and I haven't had to torque the nuts again.
Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR On Mon, Jun 24, 2019 at 12:22 PM Rob Ball via CnC-List < cnc-list@cnc-list.com> wrote: > Dennis, > > I take some issue with the problem normally being toque on the bolts . . . > > I believe the biggest reason is there is a plastic boat sump (which > distorts slightly) up against a solid cast lead blob which does Not distort > at all. > > We chased that problem for years and minimized it, but a fiberglass sump > flexes – the curved fiberglass shape just outboard of the washers > straightens and returns slightly so that outboard area cannot be solidly > connected to the lead. > > I’d haven’t seen the ‘smile’ so large that there is any real worry, but I > may have just not been around enough . . . > > The repairs suggested certainly do a great job in making it go away, so > I’m all for that. > > Personally, I know the safety factor of the bolts holding the keel on is 5 > : 1, so there is no structural worry. > > On my boat, I just epoxy over it and accept that I’ll have to do it again > . . . > > > > Cheers, > > *Rob Ball **C&C 34* > > > > > > > _______________________________________________ > > 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.proofpoint.com/v2/url?u=https-3A__www.paypal.me_stumurray&d=DwICAg&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=9w3G7Cf8YfQnrjmtuNxwDJYr3JMv9f1pAfgAJ9xXYQQ&m=3S5NlXAq8lVpZjWn9SDvGV3LKUteZ67bzXn-npybIaE&s=DgndjVw1nnCOylT6WPSqPpES_-m03ZNWBEd6-EZi9Ck&e= > >
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