how did you ground your gas tank?

[spookylynx]

have a CPP rear frame relocated tank. It is steel, mounted to the frame, there are no rubber isolators or anything like that. There is a single post on the sending unit to wire the gas gauge, where do I run a ground? Do I need a ground? I feel that it would be best.

[Clyde65]

on my tank the sending unit has a ground. Sorry I am not much help. I have a Boyds Welding tank.

[luvbowties]

Originally Posted by spookylynx

have a CPP rear frame relocated tank. It is steel, mounted to the frame, there are no rubber isolators or anything like that. There is a single post on the sending unit to wire the gas gauge, where do I run a ground? Do I need a ground? I feel that it would be best.

If it is mounted to frame with bolts, remove 1 bolt. Use a BRASS(ONLY BRASS, TO ELIMINATE SPARKS)BRUSH to clean the frame-hole & tank-hole where bolt goes, do same to bolt, and reinstall. Should be plenty of ground--unless you are determined to do something else: then run a 12 or 10 gauge wire from that bolt over to a cleaned, bolted surface of the body.
Sam

[spookylynx]

Originally Posted by luvbowties

If it is mounted to frame with bolts, remove 1 bolt. Use a BRASS(ONLY BRASS, TO ELIMINATE SPARKS)BRUSH to clean the frame-hole & tank-hole where bolt goes, do same to bolt, and reinstall. Should be plenty of ground--unless you are determined to do something else: then run a 12 or 10 gauge wire from that bolt over to a cleaned, bolted surface of the body.
Sam

So essentially it's a frame to body panel ground?

[BR3W CITY]

The frame is the earth/ground, so if your connections are metal on metal, its already grounded. The cab itself isn't actually the best ground (if you don't have any body-to-chassis grounds, you may notice ground loop interference or poor conductivity since the cab is rubber isolated from the frame). These trucks have so much metal tho, in many cases cab-only grounds end up working alright.

Fwiw, take a look at most latemodel O.E's use of grounding straps freakin everywhere. This helps with grounding all of the sensitive electronics, and helps make up for the lack of total conductive mass in the increasingly-plastic body).

[spookylynx]

Originally Posted by BR3W CITY

The frame is the earth/ground, so if your connections are metal on metal, its already grounded. .

That is what I thought, I just want to be sure. Wiring and electricity are all voodoo to me