Reply To: Installing a tacho gauge

Thanks Larry & Paul – very helpful. FWIW, I don’t have electronic ignition.

Paul – do I take it from what you said that the TIM tacho worked OK with 6v? I presume it is designed to run on 12v, but it may be that 6v “at the coil” will still be enough for it to “record” & thus produce an rpm value.

I’m making a distinction here between the 12v feed for the internal illumination, and what feed is required to generate the displayed rpm.

A friend has offered to lend me an old 12v tacho, so I’ll see if it works & will report back; I’m not bothered about internal illumination as I rarely drive my TA at night. If it does work then it does open up a whole load of options, and something like this might be just what I need.

https://www.ebay.co.uk/itm/Tachometer-0-4000-RPM-52mm-W-input-terminal-Alternator-or-ignition-coil-Rev/392045783591?hash=item5b47bfea27:g:bM8AAOSwFL9TvCzF

Thanks again,

Julian