I think there are supposed to be spacers or "insulators" where the rod passes through the spreader. If you've lost one the rob can rattle.
Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Jul 31, 2015 10:26 PM, "Jim Watts via CnC-List" <cnc-list@cnc-list.com> wrote: > On our latest trip north, we anchored in Clam Bay and had a strange > problem. At a certain wind speed, the shrouds would start to hum, sometimes > making the boat shake with vibration. The major vibration was felt in the > small rod running to the underside of the upper spreaders and in the mast > and backstay. I backed each shroud one off half a turn and it really > didn't do much except make those shrouds look loose to me, but I'm sure I > can't tell the difference of 1/128th of an inch. It eventually faded as the > wind dropped. > For the next ten days, in all sorts of conditions, we didn't hear it, but > when we anchored in the same bay 10 days later, we got it again. > Any explanation except witchcraft? > > Jim Watts > Paradigm Shift > C&C 35 Mk III > Victoria, BC > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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