Dave,
If my tach was electric, that would be fine. Mine is mechanical.
Cheers,
Jeff
----- Original Message -----
From: David Massey <105671.471@compuserve.com>
To: Jeff McNeal <jmcneal@ohms.com>
Cc: Triumph List <triumphs@autox.team.net>
Sent: Wednesday, March 22, 2000 7:28 AM
Subject: Tachometer calibration anyone?
>
> Message text written by "Jeff McNeal"
> >Hello again. My Jaeger Tachometer on my '67 Spitfire is miscalibrated
> apparently. An electronic tach confirmed my suspicions that my mechanical
> tach is showing the engine revving a good 500 RPM higher than it actually
> is
> at highway speeds. Has anyone calibrated their own tachometer? How is it
> done? TIA
>
> Jeff
> <
>
> I calibrated the tach in my MG once but I don't like to talk about it.
>
> (Just kidding)
>
> The electronic tachs have a variable resistor inside that adjusts the span
> and you can have someone hold the engine at a predetermined speed (say
> 3,000) while you adjust the tach to that reading. What could be simpler?
>
> Dave
>
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