The rear crack *may *be linked to a loose keel bolt, but the forward one probably not. I'm talking about the interface between keel stub to hull, not keel to keel stub (the "keel joint" / source of the smile).
Thanks, Tim On Mon, Dec 3, 2012 at 10:15 AM, Rick Brass <[email protected]> wrote: > I note that you’ve not retorqued the keel bolts in 7 years, and I would > suggest the this probably needs to be done before you try anything else.. > **** > > ** ** > > My owner’s manuals don’t specify an interval for retorquing, but I try to > do it every two years or so on both boats. The exception is the bolt under > the mast step on my 38, which can only be accessed when the mast is out. > That bolt was retorqued in 2005, and again in 2011 when the boat was > rerigged.**** > > ** ** > > If you have a resilient sealer (like 5200) between the keel and the stub, > you will get a tiny bit of side to side motion in the keel when you go > sailing. Over time, the torque on the keel bots can be reduced, lateral > motion can increase, and you end up with the smile, and potentially with > leaks. IMHO, torquing the bolts should be the first step in any cosmetic > attention you give to the exterior of the hull to keel joint. If the yards > that worked on your boat didn’t do this, that might be the reason the > repairs were not successful.**** > > ** ** > > My owner’s manuals (admittedly for boats older than your 35-3) indicate > that C&C originally used thickened epoxy in the layer between keel and > stub, and that the bolt torque would force the sealer into the hole around > the keel bolts. I suspect that the thickened epoxy gave a hard layer of > sealant that in combination with the fairly high torque on the bolts > minimized the side to side motion of the keel.**** > > ** ** > > I guess I have been pretty luck vis-à-vis keel problems on my boats. On > Belle, I fixed the smile the first winter I had her, and have torque the > boats fairly regularly since. No smile when she was hauled for bottom paint > last November – after 14 years or so that I’ve owned her. Imzadi had a > slight smile when hauled for engine work this past summer, but then she has > a layer of 5200 in the keel joint. Maybe it’s time to torque the bolts > again.**** > > ** ** > > ** ** > > Rick Brass**** > > *Imzadi* -1976 C&C 38 mk1**** > > *la Belle Aurore* -1975 C&C 25 mk1**** > > Washington, NC**** > > ** ** > > **** > > >
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