More diagnosis- I found that when I checked the voltage at the engine panel ammeter (where power comes to the panel), it was 12V. When I checked at the input side of the key switch it was 12 V. When I turned the key switch on, I got 10V on the other pole of the key switch and everywhere downstream. I am presuming it should be 12V on both sides. I do not understand what that means and hoping someone else does. The other weird thing is that as I have worked on this, there are times when the battery meter in the cabin bounces all over the place from 9V to 12V and back and then finally settles at 12.9V. At the same time, the batteries are measuring 12.5V. Something very strange is happening. Dave
S/V Aries 1990 C&C 34+ New London, CT > On Oct 25, 2022, at 2:56 PM, David Knecht via CnC-List > <cnc-list@cnc-list.com> wrote: > > HELP! I am stumped and hoping someone can point me in the right direction. > Long descrition as best i can recall. Two weeks ago i thought i would get a > head start on a project. My start button has been flakey this summer with now > and then nothing happening when pressed. Decided to replace key switch, glow > plug and start buttons. I installed key and glow but could not get start out > so gave up. Engine started fine after rewiring. Come back next week and no > response to start button. Battery fine. Lots of messing around but no luck. > Come back today and wire in new start button in case old bad. Recheck wiring > and realize key switch is wired backwards (does it matter? I guess you are > supplying power to downstream stuff when off?). Did not check and > misremembered which wire supplied power. Swapped wires on key switch and > checked meter and 12v on proper side (bat).All looks good. Turn on key > switch and fuel pump starts as normal. Push start button and nothing. Now i > measure 4v at engine panel instead of 12. Battery meters dead display and > measuring 4v at its inputs. But 12v at battery and main power switch. Other > devices fine. Over an hour now and panel and battery meter up to 6v so seems > to be slowly recovering. What is going on? Did i screw something up when key > switch was backwards? Dave > > Sent from my iPhone
