[C320-list] Intermittent Tachometer Operation

[Greg Flanagan]

If you check 
Boatowners Mechanical and Electrical Manual by Nigel Calder
He says the tach issue is due to high charging rate, yes when you have the alternator and solar it happens. I have the same issue. There isn’t much you can do about it other than increase your house demands (turn on the radar?). 

Greg
Hoop Dancer #1076
Sidney, BC

> On Oct 1, 2023, at 10:38 PM, Albert Kitten via C320-list <c320-list at lists.catalina320.com> wrote:
> 
> Have you got solar panels? If batteries are full on,a sunny day? I'll
> explain if necessary.
> :)
> 
> On Mon, 2 Oct 2023, 4:47 am Ian Neale via C320-list, <
> c320-list at lists.catalina320.com> wrote:
> 
> > Hi,
> >
> > I have an 07 320 with a Yanmar 3YM30 engine.
> >
> > The tachometer is intermittent in operation where at times the needle goes
> > back to zero while the engine is running.
> >
> > I think the tachometer runs off the alternator, but not sure. Wiggling
> > wires on the back of the alternator doesn’t seem to fix the problem.
> >
> > I have also cleaned all connections in the back of the tachometer.
> >
> > Any suggestions as to what could be the problem.
> >
> > Thanks, Ian Neale.
> >
> > Solutions.
> >
> > Sent from. my iPhone
> >