How to test and alternator ?
 

Question. If I have pulled my alternators. (motorola single pole). Is there a simple bench test I can do. Can I just connect a volt meter to the positive and negative, spin it up to 1500rpm, and see voltage..........or..........do i need to hook up a +/- power source to excite it first and do the same..........or..........something else? (just to check for 12->14 volt rise and not amperage).

So I have a general idea if they work or not before I take them for the rebuild.

Most auto parts stores will spin test them for free.
How's that for an easy solution.
Gary

.......just tested........12.5max........rebuild time. (These are the originals anyway, but wanted to see how bad they were)