[Healeys] Smith's Temp Gauge

[Oudesluys]

Sorry Bob, I made a typing error, 15% deviation is a bit much. It should 
have read 5%.
Kees Oudesluijs
NL

Op 30-12-2012 10:26, Oudesluys schreef:
> There is not much you can do. There is a small U shaped connecting part
> between the bourdon spring and the mechanism for the needle, this can be
> opened up or closed a bit, but you have to dismantle the gauge to get at
> it which is awkward with the capillary tube in the way. It is also very
> fragile.
> More practical is to remove the bezel and glass and lift the needle with
> two small screwdrivers used as levers resting on the rim, heat up the
> capsule in boiling water and refit the needle in the position of the
> temperature at boiling point, i.e. 100C/212F at sea level. If you are at
> a significant higher altitude recalculate the corresponding boiling
> temperature of water and set the needle accordingly.
> However if the gauge reads around the proper temperature, say 15% at
> boiling point, checked with a laboratory mercury thermometer
> _/*hanging*/_ in the water, leave things well alone. The automotive
> capillary gauges, or any automotive gauges for that matter, are not
> known for their accuracy and often need a tap before the needle settles.
> Kees Oudesluijs
> NL
>
> Op 30-12-2012 7:14, Bob Spidell schreef:
>> Anyone got info on how to calibrate the Smiths temp gauge?  I know
>> about immersing in boiling water, etc., but I think there might be a
>> couple screws or a wire to bend or something.
>>
>> Bob
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