[doviatt]

soD

You got me thinking. (not always a good thing). So I made measurements again today at lunch.

B+ terminal on alternator and Batt neg terminal. Engine OFF. 12.2V
B+ terminal on alternator and Strut mount (chassis ground). Engine OFF. 8.2V (should be 12.2V also)

Loosen Batt neg to chassis gnd wire and re tighten chassis screw.
Run errands at lunch...then more measurements.



B+ terminal on alternator and Strut mount. Engine ON 17.2V
B+ terminal on alternator and Batt neg terminal. Engine ON 18.7
B+ terminal on alternator and Batt neg terminal. Engine OFF 11.7.
:-$

Realized I didn't measure just batt status so I repeat measurements:
Batt pos to neg. Engine OFF. 12.05V
B+ alternator to Batt neg. Engine OFF 11.37V
B+ alternator to Strut. Engine OFF 10.93

Batt pos to neg. Engine ON. 11.8V (no difference with engine speed)
B+ alternator to Batt neg. Engine ON. 18.4V-19V
B+ alternator to Strut. Engine ON. 18V

It appears that I should loosen and clean and re tighten all grounds. This made a difference. Is it still broke though???