It's easy to calibrate a temp gauge.
Remove the probe from the block (or radiator), insert it in a pot of 
boiling water.
A small pot and a propane torch can be used right at the car, watch for 
gas and carbs.
Do not let the probe touch the sides of the pot.
There is a tiny dot on the C-N-H gauges at about 5:00 on the face, you 
will see it if you are looking for it.
This is 212*, where the needle should sit when the probe is in boiling 
water.
Please note that I was told this is only correct at sea level where 
water boils at 212, and it should be distilled water so you might be off 
by a degree
or two  ;)
If the needle is not where it's supposed to be, remove the bezel and 
glass, pop off the needle, it pulls straight off and is just a friction fit.
Place the needle on 212 (or the dot) now it's calibrated.
-- 
Frank Clarici
Toms River, NJ
My own Fleet of Sprites
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