Need advice or suggestions to get a stock 1952 6volt gas gauge to work with 12-volt gas sending unit. The car has been converted to 12-volt, The stock gas gauge does not work. Is it possible to use a new 12volt gauge and modify it to work with the original 6volt gauge face? Does anyone already make something like this?
I need a working gas gauge, but I also want it to look as original as possible.
Thanks
The fuel gauge and sender work on ohms. Voltage doesn't matter.
The 1952 system has a 5 volt regulator under the dash, for the instruments, so this will work with 12 volts, but will pulse a bit quicker. the sender unit should be 90 ohms.
Dany, Does that also apply for the Temp gauge? My understanding was that when changing to a12 volt system voltage drop was needed to the fuel and temp gauges, and the blower motor (for speed purposes). BTW mine is a 49 if that matters.
[quote="Brad Blaisdell post=30664 userid=796"]Dany, Does that also apply for the Temp gauge? My understanding was that when changing to a12 volt system voltage drop was needed to the fuel and temp gauges, and the blower motor (for speed purposes). BTW mine is a 49 if that matters.
I have converted 41, 46, 47, 52, and 54 Hudsons, and didn't put volt drops in any of them. No heaters in them either.
I converted my 46 pickup to 12 volts. I used a runtz from speedway for my gas gauge. I have a temp gauge under the dash. I replaces my heater motor with a new 12 volt unit from O’Reilys auto parts. Ken U gave me the part # to order, whorls great.
Ok thanks
For Hudsons 1951-57 I do supply new fuel senders. They are the modern rheostat (variable resistance) type. You must use a constant 5.5 - 6 V instrument voltage regulator in the power wire between the gauges and the ignition switch. If the system is still 6V POS ground, the regulator has to be the old bimetal type and these are available. The original IVRs in 1951-57 Hudsons usually still work fine on either 6 or 12V for years. If you have converted to 12V negative ground, then either the electronic IVRs, or a Runtz type voltage regulator can be used if you desire an electronic solid state regulator over the mechanical bimetal type..
I just recently sent a modern Rheostat type fuel sender and bimetal IVR to Jon Battle to be used in his 1937 Terraplane. Am waiting to hear back from him after Bill Sessler installs them in the Terraplane. I did test the setup using an NOS 37 Terraplane fuel gauge, the bimetal IVR, and a 6V battery.
The 1937 fuel and temp gauges both have a 10-80 Ohm range from FULL / COLD to EMPTY / HOT. If the 1934-36 gauges are the same 10-80 Ohms range, then I can supply fuel senders for them, BUT I will need a gauge and sender from those years to test and confirm. I have posted photos and videos of my test setup on the FaceBook HET Club group.
Just for everyone's information, there are three separate forum topics going simultaneously, devoted to the subject of updating gas gauges and/or senders for Hudsons of various years:
1. [url= https://hetclub.org/index.php?option=com_kunena&view=topic&defaultmenu=1367&Itemid=1367&catid=18&id=6603&limitstart=6 ]https://hetclub.org/index.php?option=com_kunena&view=topic&defaultmenu=1367&Itemid=1367&catid=18&id=6603&limitstart=6[/url]
2. [url= https://hetclub.org/index.php?option=com_kunena&view=topic&catid=18&id=6609&Itemid=1367 ]https://hetclub.org/index.php?option=com_kunena&view=topic&catid=18&id=6609&Itemid=1367[/url]
3. [url] https://forum.hetclub.org/discussion/368007/gas-tank-sending-unit-for-6v-1937-hudson-sedan-6#latest [/url]
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