It should be a smooth transition from 0 to 30 ohms on an ohmmeter. After driving
my truck for 10 K without one I was thrilled at the thought of having a working
gas gage on my newly restored truck. I finally wired in the resistor for 12
volts
and checked my gage as above. I installed it in the tank only to find the gage
doesn't come off empty. A resistance check with the gage in the tank reveals
about 5 ohms always. I had already replaced the float so assume the gear
mechanism is jammed. I use the mileage method before but did run out of gas
twice
before and don't want to repeat this. The mileage method is flawed if you
develop
a sudden problem that changes your gas mileage.
Grant - 50 3100 @ 256 miles per tank (I hope)
Hudson29@aol.com wrote:
> I just got the gas tank back from Mattson's Radiator after having the
> ReNew process done and decided to "bench" test the new sending unit purchased
> during my brief flirtation with Golden State Pickup Parts.
> The simplest way to do this I figured, would be to go out to the
> truck, wire the sending unit up to the harness and power the system up (fresh
> 6v Optima) watching the gauge while moving the float by hand. The gauge
> should read "empty" with the float dangling and it should climb to "full"
> when the float is moved up. Wiring in the new sending unit makes no
> difference to the gauge reading.
> Putting theory to practice confirms that something is fouled up
> someplace. Even with the float fully down the needle rises to "full."
> Alternately removing the ground and restoring it get the needle to make a
> very slight wiggle, but alas, no movement. Touching the wires together does
> not change the gauge reading either. The gauge normally rests on "empty" and
> goes to "full" with the key "on" even with the tank empty.
> If I could verify the sending unit is not at fault, I could go ahead
> and install it and get the tank in. I have an old Radio Shack volt/ohm meter.
> Can I use this to verify the gauge? Am I condemned, like poor Smokey, to
> wander the highways and byways of America with no working gas gauge, spare
> gas cans always along for the ride?
>
> Paul O'Neil, Hudson29@aol.com
> 1951 Chevrolet 3600 Pickup Project, See it at:
> The Poor Man's Advanced Design Tech Tips Page
> http://home.earthlink.net/~conntest47/
> Fullerton, California USA
> AEROMARK - Need Rubber Stamps or Signs? See:
> http://hometown.aol.com/hudson29/myhomepage/index.html
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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