Rocky thank you for the insightful message, this morning as I was leaving in
the car I glanced down to the speedometer and I noticed that it was
operating again, you are absolutely right, the odometer was reading at
49999 when it stopped working, so I guess a back up is in order. If you
would let me know off list if you have the speedometer I'm looking for,
thanks
Bernie
----- Original Message -----
From: "Rocky Frisco" <rock@rocky-frisco.com>
To: "bernd" <bernd.vabeach@erols.com>; <mgs@autox.team.net>
Sent: Thursday, April 22, 2004 11:03 AM
Subject: Re: speedometer help
> bernd wrote:
>
> > well folks looks like I need help once again, here is the problem, I was
> > leaving the Beach today in my 71 B when I noticed that the odometer and
trip
> > meter were not moving, speedometer was fine but I was not showing any
signs of
> > having traveled an inch, much less a mile on my odometer or trip meter,
is
> > this an easy fix, one that could be worked on by someone with my limited
> > mechanical skills?
> > Other issue is, I think I better get myself a backup speedometer so if
anyone
> > is willing to part with a speedometer please let me know, I'm looking
for
> > speedometer number 5230/13.
> > TIA
>
> The odometer and speedometer are obviously driven primarily by the
> spinning speedo cable, but inside the unit, the drive splits off into
> separate drives. The speedo is driven by a magnetic coupling, but the
> odometers are driven by a "picker" that pulls the odo primary drive gear
> one tooth at a time.
>
> When the unit gets old and there is added strain on the odo gears, often
> the main odo number ring on the array will start to slip on its shaft.
> This usually happens when the array is turning lots of gears at once, as
> when the odo passes from 99999 to 100000.
>
> I have successfully fixed a number of these units by disassembling the
> array and abrading the main number ring shaft and adding a very small
> amount of super-glue to it, then reassembling it. This is a fidgetty
> job, since the superglue will bind everything up if it gets out of where
> you want it to go, AND the array is easy to fall apart during this
> action, spreading the number rings all over the floor. If you like to
> fiddle with watches, you can probably do the job.
>
> We have three MGB's at East West Auto Parts here in Tulsa (I'm the
> Webmaster). I can ask Ken how much he wants for a speedo unit if you
> like, but there's no guarantee it won't fail in the same way, since
> these are old cars and have been out in the weather for some years.
>
> -Rock http://www.rocky-frisco.com
> --
> JJ Cale Live CD and video: http://www.rocky-frisco.com/calelive.htm
> The Wednesday Night Science Project: http://www.wednitesciproj.us
> Rocky Frisco's LIBERTY website: http://www.liberty-in-our-time.com/
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