<VV> Fuel tank sending unit issue

[Sethracer at aol.com]

In a message dated 11/23/2009 3:57:35 P.M. Pacific Standard Time,  
cmckinley313 at cox.net writes:

I'll  second that. I've been through three sending units, all supposedly 
stock,  and none of them read the same for corresponding tank levels. The 
first  two had nominally 40-ohm resistance for full tank, the last one is  
90-ohms.  As the gas gauge is basically nothing more than an  ohm-meter, 
you need to get used to whatever it says, especially near  empty! Mine 
now reads about 1/8 full when there's 2.5 gallons in it.  That's good 
enough for me.





Before you install the sending unit - and the float - first test the float  
to make sure it has no leaks. Then connect an ohm meter across the sending 
unit  and see what the readings are at full droop and full up. You can 
simulate the  position in the tank. With a few extension wires, you can even hook 
up the float  to the wiring to the gage and see what the gage will read, 
after the sender  is properly installed. Chuck's 2.5 gallons at 1/8 tank is 
pretty  good.
 
Seth  Emerson

C's the Day! - Corvair, Camaro,  Corvette