[C320-list] Intermittent Tachometer Operation

[Karl Mielenhausen]

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
>