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[Mgs] Rattle in dash

Subject: [Mgs] Rattle in dash
From: richard.ewald at gmail.com (Richard Ewald)
Date: Sat, 9 Apr 2011 09:44:17 -0700
References: <6FE89284A292498881952582B176B47A@uw471de61b465c>
I would expect a speedometer based rattle to vary in frequency with the
speed of the car.  Unless it is a case of a loose mounting.
Have you driven the car with the speedo out?  Is the rattle still there?
Rick

On Sat, Apr 9, 2011 at 9:08 AM, Hans Duinhoven <h.duinhoven at planet.nl>wrote:

> Dear list,
>
> Now the season has started, I took the GT for a ride today.
> Weather is great - around 14 deg C and full sun.
> No I became aware of a light rattle in the dash, which I recken to derive
> from the speedometer.
> The rattle starts to occur above 30 mph and then stays on till standstill.
> The frequency of the rattle is about 5 rattles on - pause - 5 rattles down.
> The cable has been replaced less then 10,000 miles ago, though the time
> from replacement is about 15 years.
>
> So I took the instrument apart from the dash.
> I tested the 90 deg right angle gear and that seems not to show any play in
> the gears.
> So it seems, that the speedo is the most suspect.
> Are there any guidelines for troubleshooting a speedo?
> My regular parts supplier suggested to try to apply some light oil in order
> to make the old instrument moving better.
>
> So what are your opinions?
> It concerns a Feb 1971 make MGB GT - Calif specs.
> Without overdrive.
>
> Thanks in advance.
>
> Cheers,
>
> Hans Duinhoven
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