The Ford Barn

straightjob · 10-10-2022, 11:40 AM

Good morning firgured out my acceleration issues ! there was deer corn in the muffler! UGH ! Can someone point me in the right direction for a good tanks sending unit ??? thanks

19Fordy · 10-10-2022, 01:08 PM

OEM 1930-50's Ford gas tanking sending units are very hard to find, including used ones.
They were made by King Sealy and DO NOT operate on the Ohms law Principle. Therefore, aftermarket repros don't work well. If you have your old unit you may be able to repair it by carefully removing the top and cleaning the points. Or it might be a simple fix like replacing a cracked float or broken float arm. Patiently Read Everything you see here about gas tank sending units to give you a great understanding.
https://www.fordbarn.com/forum/searc...rchid=29417800

straightjob · 10-10-2022, 02:46 PM

Quote:

Originally Posted by 19Fordy

OEM 1930-50's Ford gas tanking sending units are very hard to find, including used ones.
They were made by King Sealy and DO NOT operate on the Ohms law Principle. Therefore, aftermarket repros don't work well. If you have your old unit you may be able to repair it by carefully removing the top and cleaning the points. Or it might be a simple fix like replacing a cracked float or broken float arm. Patiently Read Everything you see here about gas tank sending units to give you a great understanding.
https://www.fordbarn.com/forum/searc...rchid=29417800

thanks so much ill dig into it and try to save

GB SISSON · 10-10-2022, 03:28 PM

I have suffered with this for many years. Does nobody make a reproduction that works like the KS? Seems there'd be a ready market.

tubman · 10-10-2022, 04:24 PM

Ya' know, this should be a piece of cake for somebody who really understands electronics. There should be a chip out there that could be programmed to simulate the voltage pulses from the original K-S unit.

Who says it has to have points to work right? I'll talk partner on the condenser project about this. No promises, though.

19Fordy · 10-10-2022, 06:02 PM

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Gee, tubman, you are correct, I think. There must be a way to make a chipped unit that will perform, like the original KS unit and also have it work with the stock gauge.

I have always wondered what function the little carbon looking resistor inside the KS unit serves.

10-10-2022, 11:40 AM	#1
straightjob Junior Member Join Date: Sep 2022 Posts: 12	1951 f3 gas tank sending unit Good morning firgured out my acceleration issues ! there was deer corn in the muffler! UGH ! Can someone point me in the right direction for a good tanks sending unit ??? thanks

10-10-2022, 01:08 PM	#2
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,950	Re: 1951 f3 gas tank sending unit OEM 1930-50's Ford gas tanking sending units are very hard to find, including used ones. They were made by King Sealy and DO NOT operate on the Ohms law Principle. Therefore, aftermarket repros don't work well. If you have your old unit you may be able to repair it by carefully removing the top and cleaning the points. Or it might be a simple fix like replacing a cracked float or broken float arm. Patiently Read Everything you see here about gas tank sending units to give you a great understanding. https://www.fordbarn.com/forum/searc...rchid=29417800

10-10-2022, 03:28 PM	#4
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,942	Re: 1951 f3 gas tank sending unit I have suffered with this for many years. Does nobody make a reproduction that works like the KS? Seems there'd be a ready market. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

10-10-2022, 04:24 PM	#5
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,320	Re: 1951 f3 gas tank sending unit Ya' know, this should be a piece of cake for somebody who really understands electronics. There should be a chip out there that could be programmed to simulate the voltage pulses from the original K-S unit. Who says it has to have points to work right? I'll talk partner on the condenser project about this. No promises, though.