Sending Unit Ground?

[70spider]

Hello again,
After getting my engine all back together I finally got it going again but one problem perplexed me, my new sending unit which was working before I reapainted the tank does not now. After a little thinking I figure it is a ground issue. So I scapped away the new paint (ouch) from around the mounting bolts and tried that, but nothing, probably because I used a rubber gasket between the tank and the trunk. Then for giggles I decide to run a ground off the grey/red wire on the sending unit and it appears to work. My question is this safe?
Any help would be helpfull. I do not want to be going down the road in a molotov cocktail
Thanks Pesto

[spider2081]

If you painted the gas tank it is possible the entire tank is not grounded. Try jumping one of the tank studs that holds the sender to the tank to a good clean ground. You might need to install the tank using star washers to penetrate your paint.

[70spider]

Well I decided to scrap some more paint off the tank around the bolt holes and tightened it up and Bazinga it worked. Problem solved .