1956 Fuel Gauge calibration

[swatson999]

I hadn't really thought much about this until now, but I can't quite figure this out. The specs say the tank on a 56 is 17.5 gallons, and I'm assuming the guy who did the marvelous restoration of my new-to-me car put in the correct sized tank. But when the gauge gets down to nearly on E, it never takes more than around 12 gallons to fill it up.
Any ideas here? TIA!

 

[doug7740]

Attached is an article that I wrote some time ago on how to calibrate the temperature and fuel gauges.

doug7740
1955 Thunderbird Blue

 

[Jim Yergin]

The replacement tank I installed in my '56 only holds 14 gallons. I verified that by draining the tank then refilling it one gallon at a time. Maybe when your car was restored a replacement tank like mine was installed.
Jim Yergin