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Old 09-22-06, 01:44 PM   #18 (permalink)
Lee
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Lee
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Join Date: May 2002
Location: Silverstone, UK
GT40: GT40 Australia
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Smiths Instruments

Finally got my instruments through from Caerbont.
It took a while!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I wanted to replicate the look of the originals but with some changes to incorporate extra measurements. I also decided to go with an 80mm speedo, as per some originals, although I now believe most had 100mm.

All gauges have half round black bezels to pass SVA. '1/2 V' is most original but will not pass SVA. Temperature and pressure are all mechanical giving larger scale deflection than electrical gauges. Originals were 270 degree mechanical. All are in original font, and have white pointers and red backlight as per originals. Original style fuel gauges and Ammeter are no longer available. I believe these are the closest available.

So either side of the Tacho I have gone for the oil and water gauges. In this case I decided on oil pressure and water temperature to the right, and engine oil temperature and gearbox oil temperature to the left, both twin mechanical gauges giving 180 degree scales.

At far left is the 200mph speedo, with no km/h and with mechanical odometer. I am using Porsche transmission which does not have mechanical drive so I am using an electrical to mechanical convertor to drive the speedo.

In between, instead of 2 fuel gauges and Ammeter, I am using 1 fuel gauge which will switch with fuel pump selection, fuel pressure, and Ammeter.

There was a problem with the red backlight (varying brightnesses) so all the gauges had to go back. They were then apparently modified to vary how far into the instrument each bulb is fitted, various different wattages are used, and they were sprayed white inside the casing. Hopefully they are all now about the same brightness.

Hope this all helps.
Pictures are shown from the right (RHD). I can arrange supply for you if you would like.
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Lee Stanley
UK Agent for GT40 Australia
DRB #52 under construction http://www.lightning40s.com
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