It could be due to the Coriolus effect.
Best--Michael Oritt
-----------------------------
On Thu, Aug 18, 2011 at 1:15 PM, Dallas Congleton <dcongleton at embarqmail.com
> wrote:
> Are lights used in one direction and not the other?
> ----- Original Message -----
> From: Tom
> To: Bob Spidell ; dcongleton at embarqmail.com
> Cc: Healey Mail List
> Sent: Thursday, August 18, 2011 12:56 PM
> Subject: Re: [Healeys] Tach heat sensitive?
>
>
> 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
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