[Healeys] Tach heat sensitive?

[Tom]

It's in my BJ8, so it's electrical.

Yup, overdrive on at 65mph.

- Tom

On Thu, Aug 18, 2011 at 11:44 AM, Bob Spidell <bspidell at comcast.net> wrote:

> Mechanical or electronic tach?
>
>
> Bob
>
> --------------------------------
> Bob Spidell - San Jose, CA
>
> ------------------------------
> *From: *"Tom" <ah3000me at gmail.com>
> *To: *"Healey Mail List" <healeys at autox.team.net>
> *Sent: *Thursday, August 18, 2011 7:43:55 AM
> *Subject: *[Healeys] Tach heat sensitive?
>
>
> I've noticed that when I drive to work in the morning when it's cool
> (50-60F), my tach shows about 2500 RPM at 65 MPH.  When I return home at
> night when it's warm (80+ F), my tach shows about 3000 RPM at 65 MPH.
>
> Any ideas about what's going on?
>
> thanks,
>
> Tom