jgreg53 Posted September 7, 2022 Report Posted September 7, 2022 Can anyone suggest an aftermarket fuel gauge? My p15 is still positive ground 6 volt. Thanks. Quote
SteveR Posted September 8, 2022 Report Posted September 8, 2022 What is wrong with the original fuel gauge? Quote
jgreg53 Posted September 8, 2022 Author Report Posted September 8, 2022 (edited) Fried. Shorted out. Any ideas about an aftermarket gauge? Edited September 8, 2022 by jgreg53 Quote
SteveR Posted September 9, 2022 Report Posted September 9, 2022 My gauge didn't work in my car. it had been converted to 12 vdc. I was able to put a 6-12vdc transformer in and it worked. Your car is different from mine I believe. I had a look on ebay they seem to operate on ohms. Have you put a meter on yours to determine the resistance (ohms) range? perhaps others with your year car are better equipped with the knowledge than me. Quote
Sam Buchanan Posted September 9, 2022 Report Posted September 9, 2022 https://www.ebay.com/itm/183305459546?hash=item2aaddb575a:g:1jAAAOSwjMJXDFbx&amdata=enc%3AAQAHAAAAsDeAmfa7P0%2B7yghQrizkxQHIltE%2BjdMVcG5tQ4142ujMSFF%2B%2F66MFj2oP%2BVJQ1ZHJMQ2%2Bp5Sz0SfTXNX6s2FvTYDdp5thwTV8RoP0HdKgfZlUuwgnJnNzMrsY1hxmyfIKt4z6siypVdb45f5rzDm4BqSiyb5AoAazP6qSAnQAG%2BrX9Z5XA%2FDDpoiDi%2FT20Gv%2BU6%2FGPgtD1xv9FiqCLCYdo3c9n%2Fmh9jP7gbx3jxgMR6f|tkp%3ABk9SR_SRyaPkYA https://www.ebay.com/itm/175259831154?hash=item28ce4ccb72:g:~PYAAOSwdtxiaZqn&amdata=enc%3AAQAHAAAAsGTsHpVs2cjd7nkifCHm30BSHBBVAaZIdR9sGdOIKBIM8pgr9UlsAW80qrQGW%2BklhIRbUEAnOaPNZieWbp4faS8P83UzI0iBjmM%2FDbpy6cI2VKtRLq1JJ9awf8yi5LwSrbC%2FXhBmbmTEiF%2FUuS24ywyz4JxiAblq2dE3HUOTSO1ohc8Ru%2FFpv7WS3vUbQ2MmK1mG%2FMozlytjn54GNX8TAx02nYVeVUlTTxZ%2Fyf8cdYlu|tkp%3ABk9SR_SRyaPkYA Quote
jgreg53 Posted September 9, 2022 Author Report Posted September 9, 2022 (edited) Stever. Someone on here had quoted 10 to 70 ohms. I haven't seen a gauge with exactly those numbers. A lot of the aftermarket gauges don't state the numbers Edited September 9, 2022 by jgreg53 Quote
Sam Buchanan Posted September 9, 2022 Report Posted September 9, 2022 (edited) 35 minutes ago, jgreg53 said: Too much. The NOS gauges are probably going to be your only choice if you want a gauge that works properly. A fuel gauge that isn't accurate is worse than a gauge that doesn't work.? Here is an example of what is available for vintage 6v cars, but I have no idea if it is compatible with our sender. https://www.speedwaymotors.com/Dynacorn-G02-Fuel-Gauge-47-49-6-Volt-Chevy,401051.html If your odometer works you can use that as a semi-gauge. Top up the tank, then calculate how many miles you can go until you get to 1/4 tank. Then top up again. That's the way I kept up with fuel in my kit car. Edited September 9, 2022 by Sam Buchanan 1 Quote
Kilgore47 Posted September 9, 2022 Report Posted September 9, 2022 WOW the price has gone up in the last couple of years. I remember them asking about 75 dollars. DeSoto and Dodge use the same gauge (42 to 48). The face may be a different color but you can switch that with the gauge you have. I found an entire gauge pod minus the temp gauge for 150 dollars (I needed a speedo also). Also found a NOS fuel gauge for 10 dollars. Bought that one before it went away. And it was really NOS. It took many hours and days of searching to find these deals. Attached is a picture of the DeSoto gauge. Part number 974-636 is on the box. Quote
jgreg53 Posted September 9, 2022 Author Report Posted September 9, 2022 I actually don't have a problem with an aftermarket gauge under the dash. I'll leave the one in the dash for looks. Quote
DonaldSmith Posted September 9, 2022 Report Posted September 9, 2022 The sender and gauge should be for the same number of wires. The post-war sender and gauges, like my 47 DeSoto, have two wires plus ground. Later Mopar senders and gauges have only one wire plus ground. If you just want an under-dash gauge, you can go with the more modern one-wire system, but you would need to ground the gauge to the car body. Quote
jgreg53 Posted September 9, 2022 Author Report Posted September 9, 2022 There are modern gauges with 3 wires. 2 from the sender and 1 to switch Quote
jgreg53 Posted September 12, 2022 Author Report Posted September 12, 2022 I've read the ohms of an aftermarket gauge needs to be 10 to 70 ohms. Still waiting for recommendations. I just don't know which one to buy. Quote
SteveR Posted September 12, 2022 Report Posted September 12, 2022 (edited) On 9/9/2022 at 4:50 PM, jgreg53 said: There are modern gauges with 3 wires. 2 from the sender and 1 to switch you may have to get a 12vdc and install a small transformer to boost your 6vdc to 12 to operate a modern aftermarket gauge. The problem may come in getting the proper ohmns reading. or maybe change your sending unit as well. you would still need a transformer. like this one. Be aware this one is from the UK Ebay where I live. https://www.ebay.co.uk/itm/384751611375?hash=item5994fbadef:g:kMIAAOSwvbFiAg5m&amdata=enc%3AAQAHAAAA8GrBitfNY1bi%2FNWn3Qesx5w%2FBTC2DdOWd%2BCqiLDwS8mfupeEiN497nOtAxCI13DxZolpwYIeMHPu1dAVHfYgScPtvBwpf0eFsdjqbKLHh4A5BYciWmrRrn9cEzVP%2FTTYYctMnAXm6DDUFKhkKch9piHsfO4J3AFjFm9NFcehYtLDs0B96RVjZDPQQ3BGpX3%2BSglGPFbsGkKimjJbi8cPiaBr%2B4O4LeolQvfsbRihx9d1tjD9wOUb3nAPNQWKfQAP9GABzWIcOqHOvfrn5QpGYlSLRjIOEk5weTCiBIz7EZ8aXEw1GgrOxymUoS9nb5yAGA%3D%3D|tkp%3ABk9SR6yAnOzjYA TRANSFORMER: https://www.ebay.co.uk/itm/403801691696?hash=item5e0474d630:g:tyYAAOSwXQpi4jNI&amdata=enc%3AAQAHAAAA8KC04HNDaZYGOYQtdgxjB9JcixaQ1VYxd67et9VorqerlDT7f9becuTM2YH%2FJ%2BEe1wTihSaFE6R3CGKNtGD4MtX16tPk8ig%2BQUJY98wL5wGkYLieEhutD%2F6aCDNeSBxkWt7JBhLIwxCKjZZ1jMfEbpwbf11yvwS1XpF5DMf11mRhhzUBvniaLzDvwPhRoTtQNo1xXQRf8P1JjQs0qLV%2F%2FCm57lWCixUlc7tqZCgyuz1z9zSzfU9CH7v0%2FgZF8%2BkdQ4MspTU19NOXwAXYkO%2FK5v6O62GXDDYAfZwoAAoRsMGLrxHw97Jpe3kxqRrG%2BI65Rw%3D%3D|tkp%3ABk9SR7iehofmYA Edited September 12, 2022 by SteveR Quote
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