[NoVa-Corvairs] Gas Gauge issues

[corvairduval at cox.net]

Yes, it seems the dash gauge and wiring are working fine and the problem is
in the tank. 

Drain the fuel as best you can and drop the tank. Open her up and take a
look.

I do not have a used FC sending unit to even look at. Being it reads
halfway, the resistance unit is probably rusted up.

Frank DuVal

Original email:
-----------------
From: Charles Nelson nelsondentalpractice at gmail.com
Date: Thu, 8 Jan 2015 17:35:22 -0500
To: corvairduval at cox.net, novacc-list at corvair.org
Subject: Re: [NoVa-Corvairs] Next meeting


When The car is off the gauge reads full. When I turn on the ignition it
reads 1/2 full. Unplugging the connection it goes to full. Using the ground
wire suggestion it goes to empty.  I was unable to shake the car enough to
get a good sloshing of gas in the tank because the car is on jacks. Does
this information help with diagnosing what I should have on hand?
Thanks
Trey

Sent from my iPad

> On Jan 7, 2015, at 10:09 PM, Frank DuVal via Novacc-list
<novacc-list at corvair.org> wrote:
> 
> Unplug the connection on the tank. I think it will be a brown or tan wire
with a rubber boot over the connection.
> 
> Does the gauge still read half full, or does it go to full or empty?
> 
> Connect the terminal on the end of the brown wire to ground with another
wire. Does the gauge now read opposite of the above test (terminal
connected to nothing)?
> 
> Measure the resistance of the tank unit by attaching one lead of the
ohmmeter to the terminal (stud) and the other lead to ground on the car.
Read the resistance. Shake the car and see if the resistance changes with
the fuel sloshing. If no change, the tank is empty or the sender is bad.
> 
> Frank DuVal
> 
>> On 1/7/2015 7:57 PM, Charles Nelson via Novacc-list wrote:
>> I would like to work on my '62 gas guage. It gives an improper reading.
When it is off, it reads full. When on it reads half full.  With that in
mind I would like some suggestions as to what to have on hand to help fix
it so that I can get it before the meeting.  Any suggestions would be
welcome.
>> Thanks 
>> Trey Nelson
>> 
>> 
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