This is probably a primary reason, but don't positively grounded cars have
a tendency to rust more than negatively grounded cars? Whether this is a
significant reason in the switch to negative ground, I don't know, but
what is the reason for this tendency to rust more? I suspect that it may
be that the body and frame maintain a positive charge, while oxygen ions
are negative, thus encouraging the oxidation of the iron, which is, of
course, rusting. Negatively grounded cars have a negative charge and
repel the oxygen ions. Can anyone tell me if this is a correct
assumption? I realize we're getting out of electricity/physics and into
chemistry.
Jim Ruwaldt
'72 TR6 CC79338U
Bloomington, IN
On Wed, 12 Nov 1997, Trevor Jordan wrote:
> The choice of positive or negative grounding is simply a matter of
> convenience related, I believe, to manufacturing of negative cased
> alternators.
>
> Regards, Trevor Jordan
>
>
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