How to test gauge's????

[Bb70charger500]

Hello all please teach a young guy something . I have a general idea but want to be sure before I brake something!
I have a cheap chevy set from the 50's I'm working on. Do I just add power and ground? How much power? ????

 

[pnora]

Read or find a manual. Most were simple back then. 12 volt or 6 volt?

 

[Jerry Hall]

Hello all please teach a young guy something . I have a general idea but want to be sure before I brake something!
I have a cheap chevy set from the 50's I'm working on. Do I just add power and ground? How much power? ???? View attachment 1099468

55, 56, or 57 Chevy? Chrysler went to 12V in 56, I'm not sure on GM. Most gauges can be checked individually with a 1 & 1/2 volt battery.

 

[Bb70charger500]

I believe it's 55

 

[sam dupont]

It's not a 1956. BTW, '56 was 12 volt. Touch 12 to them for a fraction of a second and if they move, they work, more or less, more more than less. Won't know how accurate they are until used.

 

[Richard Cranium]

Hello all please teach a young guy something.

Since you asked; there should be no apostrophe in "gauges" in your title.

 

[kiwigtx]

Have you tried giving it the drop test?

Vary the heights for more accurate results.

Photos of the rear would probably be more useful to assist in diagnosis of the wiring connections required....so we don't brake it for you.

 

[VFilms]

Since you asked; there should be no apostrophe in "gauges" in your title.

I would always correct my children's grammar and spelling. Nice to know I'm not the only one with this affliction.

 

[moparsaver]

Have you tried giving it the drop test?

Vary the heights for more accurate results.

Photos of the rear would probably be more useful to assist in diagnosis of the wiring connections required....so we don't brake it for you.

I sure did Roger! I’m six feet tall so this one fell from about 4’ 8”.

This one didn’t fall but is cool nonetheless.

 

[kiwigtx]

I sure did Roger! I’m six feet tall so this one fell from about 4’ 8”.
View attachment 1099590 View attachment 1099591 View attachment 1099592 View attachment 1099593
This one didn’t fall but is cool nonetheless.
View attachment 1099594
View attachment 1099595
View attachment 1099596

We need to talk.

 

[Moms68]

An ohm meter can test the gages. You will need a baseline test ohm value which will vary upon the gage and manufacturer. If you have a zero ohms or a closed circuit, either could indicate shorted internals.

 

[kiwigtx]

Handy Hint for today.....

Electrically, the Oil Pressure and Temperature gauges are identical.

I have used an Temperature gauge from an Aussie Valiant as a Oil gauge in my A100.

Only thing missing is the lettering.

EDITED: Use to have only the Idiot light for Oil Pressure....not much use really....by the time that light comes on, the damage is done.

 

[moparsaver]

Handy Hint for today.....

Electrically, the Oil Pressure and Temperature gauges are identical.

View attachment 1102464

I have used an Temperature gauge from an Aussie Valiant as a Oil gauge in my A100.

Only thing missing is the lettering.

EDITED: Use to have only the Idiot light for Oil Pressure....not much use really....by the time that light comes on, the damage is done.

This gauge is for a 70 Belvedere that replaces the idiot light. I believe it was available on fleet vehicles but not 100% sure just yet. My research and play time is short right now.

 

[Ironbuilt]

Since you asked; there should be no apostrophe in "gauges" in your title.

Making up for the absence of Kern?

 

[patrick66]

With GM, voltage changed from 6VDC to 12VDC in MY1955. Chrysler and FoMoCo changed in MY 1956, as did Hudson and (I believe) Studebaker.

That also marked the change from Positive ground to Negative ground in many lines.

 

[Bb70charger500]

Thanks guys I got to taking this thing apart yet again another lieing seller!
"It worked great when I pulled it a week ago"
Well there all rusted and haven't worked in atleast 20 years ! The speedo doesn't even rest at 0 anymore!
So junk waste of money not worth buying the replacement gauges!
I'll keep looking!