Join Date: May 2004
Location: kansas city, mo
old shade tree mechanic trick is to take a screwdriver and place it at the back of the alt. right in the center. if the alt. is charging there will be a magnetic force "suck" the screwdriver to the alt. i've done this on good alternators but have never had a bad alt. to try it with so i can't be absolutely sure that it is a valid in car test. try it and let us know if it's true or not.
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1969 SS X55 NOR added RS all NOS sheetmetal, ground up resto. 24 year project and dream. optioned out the wazoo. in one thousand pieces, and coming together finally.