Voltage Limiter

snate66 said

I believe either could work. One was designed for models that plug directly into the board(4) and the other (3) would mount on the board and wired to the terminals. The 66 barracuda used neither but they both can be "wired" in the same way as the 7805/ heat sink/ resister modification that can be found in a few posts. If ya are not feeling like soldering up the small cheap parts You can use the RTE products.

THis is an ok version of the mod done on a 65 .. http://earlycuda.org/techdocs/DashGaugeVR.pdf

Click to expand...

That person in the link did open the gauge, saw and showed what is somewhat typical of these fuel gauges. Heat and nastiness in the air, takes its toll on these instruments. Some more than others.
When they were new the goldish fiberglass fiber wound insulation on the resistor wire was hardly visible. Plus the bi-metal beam was arrow straight at room temperature.
A temp' gauge rarely goes beyond about half way and doesn't have the added limiters heat in it either so most of those of the same age will look a lot better/newer.
The gas gauge goes to 10 ohms/full often, producing more heat and more crud buildup which eventually restricts movement. So bottom line... A replacement solid state regulator is not a cure all.