willysmjeeps.com

Hi,
I have to check my fuel level unit.
Could someone help me? what resistance values I should found when i put full and empty position

Thanks in advance
Regards
Richard

Hi Richard,
We can't see what you have so it helps a lot if you tell us what jeep you have (M38 or M38A1) and if it's stock 24 volt system or 12 volt.

It also helps giving advice if you tell us --- did what you have ever work correctly and then it quit?
Or it never worked correctly?

If you search the forum you'll find several threads like these that might be helpful:
http://willysmjeeps.com/v2/modules.php? ... resistance
http://willysmjeeps.com/v2/modules.php? ... resistance

Good luck!

Also the Army published a troubleshooting guide with all that info for all military vehicle 24V gauges. TB 9-2300-228-20 Tactical Transport and Combat Vehicles: Troubleshooting for Instrument Cluster Gages, Switches, Circuit Breakers, Sending Units and Related
Wiring dated 8 July 1960.

We have a downloads page where this data is stored.
http://www.willysmjeeps.com/v2/modules. ... tit&lid=46

The Military also used two Parts and systems standard specification systems since 1940

NAS preceding any parts number indicates that parts was designed and built to the Navy/Army Standard Specification and a short while later about 1952 created the MS meaning the part or system was built to Military Specification.

The MS # for the fuel quantity float is: MS 500040

http://www.willysmjeeps.com/v2/modules. ... it&lid=122

Thanks Ron and Wesk,
Sorry yes I have a m38a1 24 Volts. I have chequed the instrument is OK, never work OK. I have to buy a fuel level sender and I wanto to check it.BUt I have to check the grounding resistence. Good point
The next weekend I will check

Thanks again
Regards
Richard