[Shop-talk] Tire Pressure Gauges

[Tom Coradeschi]

Um. A mechanic with a calibrated gauge? I’m not thinking so. He (or she) has got the one he bought from the Snap-On/Mac/Marco truck and when it goes wonky on him, he buys a new one. 

If your mechanic claims to have a calibrated gauge, ask where it was calibrated and to see the cal cert traceable to NIST. And don’t hold your breath. 

One of our labs does calibration of the high pressure, fast response pressure transducers they use. It’s a nontrivial operation. 

Tom Coradeschi
Tjcora at icloud.com

> On May 30, 2022, at 12:28 PM, eric at megageek.com wrote:
> 
> There is a very easy way that I calibrated all my TPG. 
> 
> Go to a trusted mechanic that you are friendly with.  Ask him if he has a calibrated gauge.  (He most likely does.) 
> 
> Then, check all your tires.  Then, check your tires with your gauges.  Compare the readings. 
> 
> I found that my 'accu-read' is spot on.  My cheap HF ones are within a PSI.  I make a note like "reads +1PSI" on the gauge and I'm good to go. 
> 
> I do this about once every 3 or 4 years.  I have noticed no read drift of the gauges. 
> 
> Then, give your buddy a 6-pack/gift card/ whatever token you have of appreciation. 
> 
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