Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


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1940 Chevy PU amp meter testing
#479138 02/23/23 10:47 AM
Joined: Jan 2017
Posts: 315
Likes: 2
Florida
Rabaut Offline OP
Backyard Mechanic
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Rabaut
Backyard Mechanic
Joined: Jan 2017
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Florida
I’m trying to test an amp meter from a 1940 Chevy PU. I checked and the continuity checks out. The needle appears to swing free. I believe I should be able to attach a light in series, then connect a battery and see the meter move. I’ve tried both a 1-1/2 and 6V batteries with no luck. I have 2 other amp meters out of the truck and the results are identical.

Any suggestions?


Thanks,

Mike
Re: 1940 Chevy PU amp meter testing
Rabaut #479151 02/23/23 07:43 PM
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Bracebridge Ontario,Canada
old216 Offline
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old216
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Bracebridge Ontario,Canada
I don’t know what light you were using but I would suggest using a headlight. That should make it move.

My 1951 1 Ton is now on the road! My 38 Master 4 Door is also now on the road .
Re: 1940 Chevy PU amp meter testing
Rabaut #479154 02/24/23 03:32 AM
Joined: May 2002
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Goulburn Australia
tonyw Offline
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tonyw
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Goulburn Australia
As old216 suggested at least 1 headlight globe will be needed and maybe even 2. Anything less doesnt draw enough current to deflect the ammeter needle for you to see.
Tony

1938 1/2 ton Hope to drive it before I retire
Re: 1940 Chevy PU amp meter testing
tonyw #479159 02/24/23 11:17 AM
Joined: Jan 2017
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Florida
Rabaut Offline OP
Backyard Mechanic
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Rabaut
Backyard Mechanic
Joined: Jan 2017
Posts: 315
Likes: 2
Florida
Thanks, I was wondering if the load was enough.

Mike

Last edited by Rabaut; 02/24/23 11:18 AM.

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