Sending Unit Test?

[SkylineNXS]

I was wondering if there is away to test out the sending unit without actually running any gas through it. Can i run it dry or will that end up destroying something? Thanks.....

[60-66 Nut]

The gas tank sending unit is just a float on the end of an arm. It won't hurt anything to test one out of the tank, but it does have to be grounded to the body.

60-66 Nut

[PushnFords]

Are you trying to troubleshoot your gauge or if you are getting fuel through the unit? If you are trying to get your gauge working then pull the unit out but clip it to the body or gas tank so it is grounded. Then manually move the float arm and the gauge should swing from full to empty. You can check the gauge by itself by unhooking the wire. Unhooked should go to empty and then it should read full if you ground the wire (I could be off on that...if your results are opposite I just remembered it wrong). Blow through it to see if there is gunk in it. On mine the sock on the end was completely solid. Looked ok but wouldn't let air or gas through. The end of the sending unit tube was also clogged...I cut off a couple inches and put on a rubber hose to get by until I get my new sending unit from LMC installed.

Derek
'63 GMC

[SkylineNXS]

I feel like an idiot now, but oh well. At first i though since the sending unit was wired, it actually did some of the pumping. Now that i actually looked at it and talked to u guys, i realize im completely wrong. I think i will test it with just moving the float though. Im hoping that maybe i wont have to take it out of the tank so i wont have to get a new seal, but, it might have to happen. Thanks for all the input guys.....

Brad