The amount of ether in the bulb is not very critical. Any fluid has a
specified vapour pressure at a specified temperature. This is what the
gauge registers, it is a manometer that translates pressure to
temperature on the scale.
As vapour pressure is independent from volume the amount of fluid does
not matter, as long as the bulb and capillary is not completely filled
up with fluid or if there is no fluid but just vapour.
Apparently there are several sorts of ether I was told by a chemist. He
supplied me with some that is normally used in automotive gauges which I
used for repairing a gauge.
Kees Oudesluijs
john schreef op 6-7-2014 4:13:
> The tech at Palo Alto Speedometer told me the bulb needs to have the correct
> ether fill level; not too much or too little. The volume can vary depending
> on the temperature when filled. When the gauge was repaired they noticed the
> bulb may have had a "spot" of solder on it that may have damaged the bulb
> when it was installed in the block.
>
> John
>
> -----Original Message-----
> From: dwflagg@juno.com [mailto:dwflagg@juno.com]
> Sent: Saturday, July 5, 2014 6:33 PM
> To: michael.salter@gmail.com
> Cc: jmsdarch@sbcglobal.net; healeys@autox.team.net
> Subject: Re: [Healeys] Safety gauge - resolved
>
> ether assumption is correct!!
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