Sending unit
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Laughing Gas
Joined: Jan 2006
Posts: 1,239
Likes: 53
From: Coatesville, PA
Sending unit
Hello Everyone,
Hopefully someone can tell me the resistance values for the tank sending unit on a 52 F1. I removed my tank today and then removed what used to be the sending unit. It was covered in a pudding like substance with the float arm rusted up and it looks to be a goner. I was wondering if anyone knows the resistance empty and full values?
Thanks.
Hopefully someone can tell me the resistance values for the tank sending unit on a 52 F1. I removed my tank today and then removed what used to be the sending unit. It was covered in a pudding like substance with the float arm rusted up and it looks to be a goner. I was wondering if anyone knows the resistance empty and full values?
Thanks.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
I can reference you to a sending unit, but electrical is not my forte. The sending units that fit 1940/48 Ford passenger cars have been reproduced, and will also work on trucks through 1952.
01A-9275 .. Fuel Sender
01A-9275 .. Fuel Sender
Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
Most of the Fords I have worked on were 73 ohms empty and 10 ohms full. I do not really know about the 52 and earlier.....but the late 60's and 70's I owned were those readings as is my 53.
Senior User
Joined: Jan 2004
Posts: 298
Likes: 0
From: Albany NY
The Ford fuel gauge as well as the temp and oil press gauges of that era didn't use the variable resistance slide wire system. Instead they use a bimetal strip that makes and breaks a contact sending pulses to the panel gauge. The panel gauge is another bimetal strip connected to the pointer. The fuel sending unit float works a cam that increases and decreases tension on the bimetal strip controlling the duration of the pulses to the dash indicator.
Your sending unit will read the same resistance regardless of the position of the float. Easiest way to check it is to connect it to a known to be good dash indicator. To find out if the dash indicator is good connect it to a 1.5 volt flashlight battery. It should read about 50%.
The OE sending units will not work with modern panel gauges.
Craig
Your sending unit will read the same resistance regardless of the position of the float. Easiest way to check it is to connect it to a known to be good dash indicator. To find out if the dash indicator is good connect it to a 1.5 volt flashlight battery. It should read about 50%.
The OE sending units will not work with modern panel gauges.
Craig
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