Quote:
Originally Posted by pwd72s
Forget how it's spelled..but "bourdon tube" is the key. Yes, the more expensive dial gauges have them.
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I have an Accutire bourdon tube dial gauge that I dropped. After that it read 2 psi when the pressure was 0. I opened it up and saw that the linkage between the bourdon tube and the dial needle appeared to be designed to be adjusted by bending a link. I adjusted it to read 0 at 0 and "calibrated" it by comparing it to a couple of other gauges. All were in agreement within about 1 psi. (Edited from previous post.)
https://www.consumerreports.org/cro/tire-pressure-gauges/buying-guide/index.htm