[Vwdiesel] '82 Jetta charging issue

[Val Christian]

> alt to the battery.  You may need a ground to the alt.  Use a 
> jumper cable to test if it helps.

Use a digital volt meter, and check the voltage between the ALT case
and the battery negative terminal (center of the post).  If you 
see more than 0.1 or 0.2, the grounding may be a problem.

Do this when the ALT is putting out significant power  (defogger,
blower, headlights).