test of instrument gauges

imbett_old · July 5, 2007 at 9:18 AM

I would like some help in how you can bench check as to working conditon of fuel temp amp alt guages .I hope someone can help

C6ZZKGT · July 5, 2007 at 9:41 AM Official Post

A 9 volt battery will check to see if they move without hurting the gauges.

-Fred-

zray · July 5, 2007 at 11:17 AM

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I would like some help in how you can bench check as to working conditon of fuel temp amp alt guages .I hope someone can help

a C or D size battery can be used to safely check the AMP gauge. Connecting it one way will make the needle swing at least half way. Reverse the leads and it will make the gauge swing the other way.

Z. Ray

'66 GT-350

kar-nut_old · July 5, 2007 at 12:03 PM

I use a Lionel model train transformer that has varible DC voltage settings, works good for bench checking gauges. One caution, I had a NOS gas gauge that bench checked OK, but once installed the gauge read full all the time. Replaced the gauge that bench checked good with another, & all was well.

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