Packard Forum Index » Pre-War (1899-1942)

Can someone tell me what the resistance values of the sending unit is suppose to be Full vs Empty?
Help appreciated. This is for a 1942 Packard 2055
Lee

Hi don't know if this is any help,https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=10721&forum=2&post_id=112785#forumpost112785
Wes

What model is a 2055? I don't see that designation in listings I have.

I believe prewar Clippers used the same Stewart-Warner gauges that postwar Clippers used and those have a now obsolete range of 100 ohms empty and 0 ohms full.

Packard use different gauge mfgs for various models & I don't know how many of the other models used the same magnetic S-W gauges. Other gauges are thermal. Some senders Packard used had straight resistance while others had bimetal senders where the float would preload a bimetal strip. A heater would cause the bimetal to bend farther and touch a contact which would in turn cut off the heater and let the bimetal cool. The output was on or off with the duration of on vs off time influenced by the float. The on time would determine how high the gauge read. That type is about impossible to test with a meter since it has no variable resistance.

It's a Business Sedan 160. Thanks for the info.
Lee