While you are at this, you might check the engine ground stud for corrosion - disassemble, clean it and the terminals up, protect with dielectric grease, reassemble. Not a huge job. The harness and a bunch of other stuff grounds at this point and unreliable or high resistance grounds can cause problems that can be easily misunderstood. (wasting time and money in resolution-BTDT)
Dave On Thu, 7 Jul 2022 at 11:51, David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > Thanks for the thoughts. Chris wins today’s prize. We got it working > again today. It seemed to be the starter button. When I shorted the > contacts it worked and after cleaning those contacts, all seems to be > well. I am considering replacing that 20 year old switch along with the > glow plug button and key switch on that panel. Anything mechanical and > exposed like that I presume to have a limited lifetime and those are 30 > years old. Dave > > S/V Aries > 1990 C&C 34+ > New London, CT > > > > > On Jul 7, 2022, at 9:27 AM, Chris Riedinger <chris.riedin...@gmail.com> > wrote: > > Sounds like the start button or perhaps neutral safety -did you jiggle the > shifter? > > > > The stop knob wouldn't prevent the motor from turning over, but good on > you for honesty > > > > > On Thu, Jul 7, 2022, 6:08 AM David Knecht via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Last night, out of the blue, my engine would not turn over after a race. >> Nothing at all when I push the start button. I ran the engine before the >> race and all was fine and have had no issues at all this year. >> Fortunately, I was able to sail the short distance to the mooring without a >> problem. I will be going out to the boat later to try to fix the problem >> and wanted to see if anyone had thoughts on the problem from personal >> experience. >> >> Plenty of power- batteries fully charged. I tried bridging the two >> batteries just to be sure and still nothing happens. >> Key switch on I can hear the fuel pump ticking over. >> I measured 12V across the start button poles, which goes to zero when >> pressed and my recollection is that is normal the way it is wired with the >> glow plug button. I have not yet measured at the starter, as that is a >> real PITA to get to. >> >> Everything had been working fine up until that incident. The only thing >> that happened during the race, (and I don’t think relevant) is that the >> genoa sheet got wrapped around the engine stop pull knob at one point. I >> checked and the cable and stop look fine, and the engine should still turn >> over even if it were pulled, is my understanding. It just should not >> start. >> >> So I am thinking either engine ground wire or starter and plan to clean >> both and try again. Any thoughts welcome. Thanks- Dave >> >> S/V Aries >> 1990 C&C 34+ >> New London, CT >> >> >> <pastedGraphic.tiff> > > >
