Big Block Street

[cobrakiwi]

Kevin, your cap is connected to the rest of your car through the six bolts attaching the cap flange to the body.

[cobrakiwi]

What did all the original csx 3k cars do with there filler caps as far as ground straps go?
Any of you original car owners out there have an answer to this one?
Thanks.

[patrickt]

Originally Posted by cobrakiwi

What did all the original csx 3k cars do with there filler caps as far as ground straps go?
Any of you original car owners out there have an answer to this one?
Thanks.

All the original fiberglass cars had them. Seriously, if the metal fuel inlet portion is securely fastened to an aluminum body, and the fuel tank itself is securely fastened to the frame via a conductor like aluminum and not leather straps, then the resistance of both those components are almost certain to be less than one ohm to the system ground. Glass cars like my ERA require a little more care.

[cobrakiwi]

I ment to ask what did all the Street csx 3k cars do with the fuel cap as far as ground straps?

[cobrakiwi]

Morris
I understand why your grounding the fuel thank but why the cap?
That car is a aluminum body right?

[Gaz64]

Originally Posted by cobrakiwi

Morris
I understand why your grounding the fuel thank but why the cap?
That car is a aluminum body right?

The filler neck needs to be grounded, because while it is not grounded it is a point of static electricity conduction. Placing a fuel hose into the neck creates the loop, and we have fuel vapour right at the point of the spark path.

All late model cars with plastic tanks have a ground strap at the filler neck.

Some cars I have worked on needed to have a strap added as a rework.

Gary

[cobrakiwi]

Hey Gary
So how does touching the fuel cap or the cap neck with the pump nozzle make any difference if the cap has a ground strap or not?