Likely a failing cutlass bearing. I had the same type of thumping noise when running the engine. Increases and decreases with the throttle input.
Best regards, Jack Fitzgerald S/V HONEY - US12788 C&C 39TM (1974) This email is protected by the Electronic Communications Privacy Act, 18 U.S.C. Sec. 2510-2521, is confidential and may be legally privileged. If you are not the intended recipient, you are hereby notified that any retention, dissemination, distribution or copying of this communication is strictly prohibited. Please reply to the sender that you have received this message in error, then delete it. Thank you On Tue, Jun 16, 2020 at 7:47 AM dwight veinot via CnC-List < cnc-list@cnc-list.com> wrote: > Maybe a loose shaft anode > > On Tue, Jun 16, 2020 at 8:27 AM Robert Boyer via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Maybe a failed motor mount? >> >> Bob >> >> Bob Boyer >> s/v Rainy Days >> C&C Landfall 38 (Hull # 230) >> (Spending winters in the Bahamas, summers in Baltimore, and somewhere on >> the ICW in between) >> blog: dainyrays.blogspot.com >> email: dainyr...@icloud.com >> >> > On Jun 15, 2020, at 11:44 PM, Doug Mountjoy via CnC-List < >> cnc-list@cnc-list.com> wrote: >> > >> > >> > HI All, >> > The other day while motoring at about 6.5kts we noticed an intermittent >> thumping near the stern. It sounded like a crab float was bouncing off of >> the hull. we slowed and the noise became quieter. Thinking there was >> actually something thumping on the hull we came to a complete stop and even >> backed up some, no help. We spent the weekend anchored in Liberty Bay. on >> the way home the same noise, I looked at the rudder quadrant and could not >> see anything. Upon arrival back at my slip I dove on the boat and could not >> see anything unusual. >> > Any ideas would be greatly appreciated. >> > Thanks in advance >> > >> > Doug >> > >> > -- >> > Douglas Mountjoy >> > 253-208-1412 >> > Port Orchard YC, WA >> > Rebecca Leah >> > C&C LandFall 39 >> > _______________________________________________ >> > >> > 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://www.paypal.me/stumurray >> > >> >> _______________________________________________ >> >> 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://www.paypal.me/stumurray >> >> -- > Sent from Gmail Mobile > _______________________________________________ > > 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://www.paypal.me/stumurray > >
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