[C320-list] Intermittent Tachometer Operation

[Karl Mielenhausen]

Rear of tach. Labeled "CAL". May have sticker covering hole.

Karl


On Sun, Oct 1, 2023 at 10:24 PM Ian Neale via C320-list <
c320-list at lists.catalina320.com> wrote:

> Sorry that is very bad typing. Apple correct!!!
>
> In any case what is the adjustment screw you are referring to please.
>
> Thanks, Ian Neale.
>
> Sent from. my iPhone
>
> > On 2/10/2023, at 10:51 AM, Ian Neale <kiwineales at yahoo.com> wrote:
> >
> > What’s the adjustmff egg t screwi have t seen that.
> >
> > Sent from. my iPhone
> >
> >> On 2/10/2023, at 8:42 AM, Karl Mielenhausen via C320-list <
> c320-list at lists.catalina320.com> wrote:
> >>
> >> You might try turning the adjustment screw, in the back of the tach, a
> 1/4
> >> turn in each direction repeatedly.
> >>
> >> Karl
> >>
> >>
> >>> On Sun, Oct 1, 2023 at 2:47 PM 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
> >>>
>
>