No dog in the fight or direct experience with this model, but have you studied how the CB is installed? Does it have a bushing around the pivot that could have failed? Does it have guides or shims in the case that should limit the lateral movement you describe? When the cable was replaced was the trunk cleared of years of marine growth? The fact that this is a new noise suggests something has changed of course, and since the cable still works, it would suggest something other than the cable. FYI The board moved laterally a bit on my prior CB boat, and is reputed to do so on my new boat.
Dave - Alubat OVNI 435 (with a big centreboard.) On Tue, 15 Aug 2023 at 09:01, Richard Bush via CnC-List < cnc-list@cnc-list.com> wrote: > Bill, thanks for the suggestion; and yes, we listened for that, and other > things, like the Head door banging, but it is clearly coming from the > centerboard trunk; I can even see the saloon table vibrate when it hits! > > Richard > Richard N. Bush Law Offices > 2950 Breckenridge Lane, Suite Nine > Louisville, Kentucky 40220 > (502) 584-7255 > > > On Monday, August 14, 2023 at 10:25:33 PM EDT, Bill Coleman via CnC-List < > cnc-list@cnc-list.com> wrote: > > > Are you sure it is coming from the CB and not the stern? We get some > pretty hard THUNKING sometimes when there is a following wind, even in the > slip if the little wave hits just right under the stern. > > Bill Coleman > Erie PA > > On Mon, Aug 14, 2023 at 11:14 AM Richard Bush via CnC-List < > cnc-list@cnc-list.com> wrote: > > Joe, thanks; this is a new development, we haven't had this "thump" noise > before... we did run a line but weren't able to get a result we were sure > of: I wasn't able to do a dive on the keel, but plan to do that as soon as > I can; thanks! > > Richard > 1085 C&C 37 CB: Ohio River, MIlr 584; > Richard N. Bush Law Offices > 2950 Breckenridge Lane, Suite Nine > Louisville, Kentucky 40220 > (502) 584-7255 > > > On Monday, August 14, 2023 at 10:48:22 AM EDT, Della Barba, Joe via > CnC-List <cnc-list@cnc-list.com> wrote: > > > Do you suspect the centerboard is actually down? > > Even in murky water, it seems like a 20 second dive would give you the > answer, unless the murk is caused by something nasty you don’t want to swim > in. You could always run a line from one side of the boat to the other and > walk aft and see if you can tell if the board is hanging down. > > Assuming it goes up and down as usual, the thunk would be side to side > movement that the cable cannot change. Some boats just do this, I have > heard of people swimming down and stuffing a sponge or two in the slot to > get a quite night’s sleep. > > Joe > > Coquina > > > > *From:* Richard Bush via CnC-List <cnc-list@cnc-list.com> > *Sent:* Monday, August 14, 2023 4:09 AM > *To:* 'Stus-List' <cnc-list@cnc-list.com> > *Cc:* Richard Bush <bushma...@aol.com> > *Subject:* [EXTERNAL] Stus-List Re: Centerboard cable diagnostics or > replacement > > > > Hi all; I have a 1985 C&C 37 with a centerboard; with the boat tied at the > dock (we are at a fixed dock on a river) we notice a thunk sound that seems > to be centerboard moving side-to-side when there was wave action; however, > the centerboard cable remains tight and in its usual position (the > centerboard is normally on the "up" position, with the cable connected to > a rope line which is on a cabin top winch. The line was replaced with new > line last winter and is in good condition). We were not able to see the > bottom of the keel because the river water is too murky. > > > > Does anyone have any suggestions or information about replacing the > centerboard cable; can this be done in the water with a diver? Any other > ideas welcome, thank you. > > > > > > Richard > > 1985 C&C 37, CB; Ohio River, Mile 584. > > > > Richard N. Bush Law Offices > > 2950 Breckenridge Lane, Suite Nine > > Louisville, Kentucky 40220 > > (502) 584-7255 > > > > > > > > > > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > Please show your appreciation for this list and the Photo Album site and > help me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
