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Old 02-15-2019, 06:18 PM   #1
Dachshund
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1947 Guages

I am switching over to 12v and, of course, the gauges are still 6v units. What is better/cheaper - replace the whole cluster, or get individual gauges? The chrome on mine is pitted, but I was planning on painting them anyway, so it's not a big deal. All I need are the Amp and the fuel guage, correct?

Last edited by Dachshund; 02-15-2019 at 06:27 PM.
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Old 02-15-2019, 11:14 PM   #2
Jesse Z
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Re: 1947 Guages

Amp guage doesnt need to be changed, does it?, oil pressure and temp are mechanical,. So I think your looking at fuel gauge only. 12v replacement fuel gauges are chaep

Dont foreget to change light bulbs.
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Old 02-16-2019, 11:23 AM   #3
e015475
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Re: 1947 Guages

The bezel and glass are easy to replace too. Parts are available from the usual suppliers.
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Old 02-16-2019, 11:58 AM   #4
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Re: 1947 Guages

Quote:
Originally Posted by Jesse Z View Post
Amp guage doesnt need to be changed, does it?, oil pressure and temp are mechanical,. So I think your looking at fuel gauge only. 12v replacement fuel gauges are chaep

Dont foreget to change light bulbs.
As I remember I didn't even change the fuel gauge. I don't think it works on "volts" so it doesn't matter.

Brian
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Old 02-16-2019, 01:21 PM   #5
Dachshund
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Re: 1947 Guages

Ok, thanks! Another Question -
What is the black sealant stuff used under the glass? It (WAS) it a gasket, or some sort of caulk?
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Old 02-16-2019, 05:04 PM   #6
mr48chev
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Re: 1947 Guages

I think that most of the truck trinket vendors have guage parts availble but this was easy for me to bring up.
https://www.classicparts.com/Gauge-Parts/products/851/

I'm thinking that "sealer" may originally have been the Bezel gasket.
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Old 02-16-2019, 09:55 PM   #7
Dachshund
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Re: 1947 Guages

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Originally Posted by mr48chev View Post
I think that most of the truck trinket vendors have guage parts availble but this was easy for me to bring up.
https://www.classicparts.com/Gauge-Parts/products/851/

I'm thinking that "sealer" may originally have been the Bezel gasket.
Ok - Thanks! Now - are there TWO in each cluster (one on each side of the glass)?
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Old 02-17-2019, 04:14 AM   #8
MiraclePieCo
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Re: 1947 Guages

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Originally Posted by MARTINSR View Post
As I remember I didn't even change the fuel gauge. I don't think it works on "volts" so it doesn't matter.

Brian
Classic Parts sells 6 and 12 volt gas gauges, so maybe there's a difference?

Yikes, they are NOT cheap:

https://www.classicparts.com/searchprods.asp
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Last edited by MiraclePieCo; 02-17-2019 at 04:22 AM.
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Old 02-17-2019, 03:03 PM   #9
weim55
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Re: 1947 Guages

If you are converting to 12 V on an otherwise stock truck you should be OK through the factory Ammeter. But if you have added a significant amount of electrical Accessories ( Electric fans, air conditioning, high-end stereo, etc) as well as a high output alternator the original wiring will not handle the The high amperage running through it.

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Old 02-17-2019, 04:22 PM   #10
Dachshund
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Re: 1947 Guages

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Originally Posted by weim55 View Post
If you are converting to 12 V on an otherwise stock truck you should be OK through the factory Ammeter. But if you have added a significant amount of electrical Accessories ( Electric fans, air conditioning, high-end stereo, etc) as well as a high output alternator the original wiring will not handle the The high amperage running through it.

Steve weim55 Colorado
Yeah, the wiring was the main reason the truck was parked - it was BAD 20 years ago. I plan on installing all new. Not very much in the way of "accessories", just radio, and MAYBE a fan - otherwise pretty simple.
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