Re: "Transformer" available to jump 6 volt car with 12 volt battery ?

Posted by PackardV8 On 2010/7/2 16:15:14

I've never tried touching bumpers and ONE cable. My only fear of that would be possible arcing. When arc WELDING on an engine one must be careful not to ground thru the rest of the engine.
For example: do not ground to the end of the crank shaft unless the crank shaft itself is being welded. Arcing could occur then thru the bearings if welding on say an AC bracket.

Some, but not all cars, have an engine to frame ground strap. 55 and 56 Packards do NOT have such a strap. So touching bumpers would make me worry about any ground arcing that mite occur back thru engine components.