Date:         Tue, 11 Aug 1998 09:44:08 +0200
Reply-To:     "Dr. Rainer Woitok" <woitok@RRZE.UNI-ERLANGEN.DE>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         "Dr. Rainer Woitok" <woitok@RRZE.UNI-ERLANGEN.DE>
Organization: RRZE (Regionales Rechenzentrum Erlangen)
Subject:      Re: [Fwd: Survey: Fuel Mileage? /SPEEDOMETER CALIBRATION]
Comments: To: "Robert A. Alexander" <satcong@VOL.COM>
Comments: cc: Vanagon@VANAGON.COM
In-Reply-To:  Msg <35CCB5E2.871F725B@vol.com> of 1998- 8- 8 16:32:34 -0400 from
              satcong@VOL.COM
Content-Type: text/plain; charset=us-ascii

Goor morning all of you,

On Sat, 1998-08-08 16:32:34 -0400, Robert A. Alexander wrote:

> ...
>         Your speedo shows "1000" under the "KmPH"???  Let's see, that
> should mean 1.0 revolution per 1.0m traveled.  Circumference of the tire
> would have to be 1.0m, ...
> ...
> claimed the number indicated the number of revolutions per mile the
> speedo turns.

Well yes, the number  specifies the number  of revolutions of the speedo
cable necessary for   the odometer to increment   by one (regardless  of
whether these are  miles or kilometers).   But the number of revolutions
of  the  speedo _cable_  is  _not_  the  same thing    as the number  of
revolutions of the _wheel_!  There's some gear involved where the speedo
cable connects to the wheel axle.

I'm  pretty  confident  this speedo    showing  "1000" under  the "km/h"
mentioned by Per Lindgren was in a Vanagon with 14" tires, but in my 16"
Syncro the speedo just says the same,  "km/h" and "1000".  Thus the gear
at the lower end of the speedo cable must do the rest of the math.

Sincerely
 Rainer

'89 Vanagon Caravelle GL 16" Syncro

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| Rainer M Woitok                  | Phone: (+49-9131) 85-7811, -7031  |
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