If you are talking Nexus, I think I know the problem. Mine would spin freely when I removed it but wouldn't work when installed. The problem is growth on the inside of the bushing that is not pushed out when the knot meter is installed. The paddle wheel is only slightly smaller than the bushing ID, and the paddles catch on the growth. I had to file about 1/32" off each paddle, and never had the problem again.
Gary S/V High Maintenance '90 C&C 37+ East Greenwich, RI, USA Sent from my iPhone. ~~~_/)~~~ > On Aug 31, 2015, at 1:23 PM, Della Barba, Joe via CnC-List > <cnc-list@cnc-list.com> wrote: > > The paddle wheel spins freely and the knotmeter works. The only thing I can > think of is some random piece of goo was stuck on it from the dirty bottom > and I never saw it because of the pressure wash at haulout. > In other news I got my spare impeller out and it works too – but it is > missing the O-rings. WTF??? Good thing I looked now! > > Joe > Coquina > > > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew > Burton via CnC-List > Sent: Tuesday, August 25, 2015 11:09 AM > To: cnc-list@cnc-list.com > Cc: Andrew Burton > Subject: Re: Stus-List knotmeter malfunction > > The paddle wheel should turn easily when you blow on it. If it doesn't then > you may need to clean the socket in which it turns. Bleach helps. > > Andy > C&C 40 > Peregrine > Currently enjoying the warm clear weather in St Andrews, New Brunswich. > > Andrew Burton > 61 W Narragansett > Newport, RI > USA 02840 > > http://sites.google.com/site/andrewburtonyachtservices/ > +401 965-5260 > > On Aug 25, 2015, at 10:52, Gary Nylander via CnC-List <cnc-list@cnc-list.com> > wrote: > > I get growth in the slot where the little wheel spins. Have done a lot of > 'fixes' to make it work, and it is still spotty. I even bought a new wheel... > no help. (Nexus) > > Gary > 30-1 > Weedy mid-Chesapeake > ----- Original Message ----- > From: Monty Schumpert via CnC-List > To: cnc-list@cnc-list.com > Cc: Monty Schumpert > Sent: Tuesday, August 25, 2015 10:45 AM > Subject: Re: Stus-List knotmeter malfunction > > Joe, > I had the same symptoms with my knotmeter last week. The boat had been unused > for several weeks with the bung installed. I installed the transducer(s) > before leaving the dock and the knotmeter read zero until we had covered > about 5 miles when it started reading correctly. I assumed there was a > build-up of growth in front of the paddlewheel, and it performed fine for the > rest of the trip. > > Monty > Scandia > 1991 C&C 34+ > Annapolos, MD > > On Mon, Aug 24, 2015 at 5:00 PM, Della Barba, Joe via CnC-List > <cnc-list@cnc-list.com> wrote: > Coquina just got hauled this morning. Now I can go over and see why my > knotmeter reads 0 underway, but if I pull the impellor out and spin it the > readings are good. Any ideas why the paddlewheel spins freely in my hand but > not in the water??? > BTW – the diver that cleaned my bottom said now I had 3 different colors of > paint showing maybe it was time for more LOL. The last time I painted I did > one blue layer and one red layer over black original. It seems to have > ablated itself right off the boat. > > Joe Della Barba > Coquina > C&C 35 MK I > > _______________________________________________ > > 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 > > > > _______________________________________________ > > 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 > > _______________________________________________ > > 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 > > _______________________________________________ > > 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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